1 |
123 |
rkastl |
-- Copyright (C) 1991-2010 Altera Corporation
|
2 |
|
|
-- Your use of Altera Corporation's design tools, logic functions
|
3 |
|
|
-- and other software and tools, and its AMPP partner logic
|
4 |
|
|
-- functions, and any output files from any of the foregoing
|
5 |
|
|
-- (including device programming or simulation files), and any
|
6 |
|
|
-- associated documentation or information are expressly subject
|
7 |
|
|
-- to the terms and conditions of the Altera Program License
|
8 |
|
|
-- Subscription Agreement, Altera MegaCore Function License
|
9 |
|
|
-- Agreement, or other applicable license agreement, including,
|
10 |
|
|
-- without limitation, that your use is for the sole purpose of
|
11 |
|
|
-- programming logic devices manufactured by Altera and sold by
|
12 |
|
|
-- Altera or its authorized distributors. Please refer to the
|
13 |
|
|
-- applicable agreement for further details.
|
14 |
|
|
-- Quartus II 9.1 Build 350 10/07/2009
|
15 |
|
|
|
16 |
|
|
library IEEE;
|
17 |
|
|
use IEEE.std_logic_1164.all;
|
18 |
|
|
use IEEE.VITAL_Timing.all;
|
19 |
|
|
use IEEE.VITAL_Primitives.all;
|
20 |
|
|
|
21 |
|
|
package cycloneii_atom_pack is
|
22 |
|
|
|
23 |
|
|
function str_to_bin (lut_mask : string ) return std_logic_vector;
|
24 |
|
|
|
25 |
|
|
function product(list : std_logic_vector) return std_logic ;
|
26 |
|
|
|
27 |
|
|
function alt_conv_integer(arg : in std_logic_vector) return integer;
|
28 |
|
|
|
29 |
|
|
|
30 |
|
|
-- default generic values
|
31 |
|
|
CONSTANT DefWireDelay : VitalDelayType01 := (0 ns, 0 ns);
|
32 |
|
|
CONSTANT DefPropDelay01 : VitalDelayType01 := (0 ns, 0 ns);
|
33 |
|
|
CONSTANT DefPropDelay01Z : VitalDelayType01Z := (OTHERS => 0 ns);
|
34 |
|
|
CONSTANT DefSetupHoldCnst : TIME := 0 ns;
|
35 |
|
|
CONSTANT DefPulseWdthCnst : TIME := 0 ns;
|
36 |
|
|
-- default control options
|
37 |
|
|
-- CONSTANT DefGlitchMode : VitalGlitchKindType := OnEvent;
|
38 |
|
|
-- change default delay type to Transport : for spr 68748
|
39 |
|
|
CONSTANT DefGlitchMode : VitalGlitchKindType := VitalTransport;
|
40 |
|
|
CONSTANT DefGlitchMsgOn : BOOLEAN := FALSE;
|
41 |
|
|
CONSTANT DefGlitchXOn : BOOLEAN := FALSE;
|
42 |
|
|
CONSTANT DefMsgOnChecks : BOOLEAN := TRUE;
|
43 |
|
|
CONSTANT DefXOnChecks : BOOLEAN := TRUE;
|
44 |
|
|
-- output strength mapping
|
45 |
|
|
-- UX01ZWHL-
|
46 |
|
|
CONSTANT PullUp : VitalOutputMapType := "UX01HX01X";
|
47 |
|
|
CONSTANT NoPullUpZ : VitalOutputMapType := "UX01ZX01X";
|
48 |
|
|
CONSTANT PullDown : VitalOutputMapType := "UX01LX01X";
|
49 |
|
|
-- primitive result strength mapping
|
50 |
|
|
CONSTANT wiredOR : VitalResultMapType := ( 'U', 'X', 'L', '1' );
|
51 |
|
|
CONSTANT wiredAND : VitalResultMapType := ( 'U', 'X', '0', 'H' );
|
52 |
|
|
CONSTANT L : VitalTableSymbolType := '0';
|
53 |
|
|
CONSTANT H : VitalTableSymbolType := '1';
|
54 |
|
|
CONSTANT x : VitalTableSymbolType := '-';
|
55 |
|
|
CONSTANT S : VitalTableSymbolType := 'S';
|
56 |
|
|
CONSTANT R : VitalTableSymbolType := '/';
|
57 |
|
|
CONSTANT U : VitalTableSymbolType := 'X';
|
58 |
|
|
CONSTANT V : VitalTableSymbolType := 'B'; -- valid clock signal (non-rising)
|
59 |
|
|
|
60 |
|
|
-- Declare array types for CAM_SLICE
|
61 |
|
|
TYPE cycloneii_mem_data IS ARRAY (0 to 31) of STD_LOGIC_VECTOR (31 downto 0);
|
62 |
|
|
|
63 |
|
|
function int2str( value : integer ) return string;
|
64 |
|
|
|
65 |
|
|
function map_x_to_0 (value : std_logic) return std_logic;
|
66 |
|
|
|
67 |
|
|
function SelectDelay (CONSTANT Paths: IN VitalPathArray01Type) return TIME;
|
68 |
|
|
|
69 |
|
|
function int2bit (arg : boolean) return std_logic;
|
70 |
|
|
function int2bit (arg : integer) return std_logic;
|
71 |
|
|
function bin2int (s : std_logic_vector) return integer;
|
72 |
|
|
function bin2int (s : std_logic) return integer;
|
73 |
|
|
function int2bin (arg : integer; size : integer) return std_logic_vector;
|
74 |
|
|
function int2bin (arg : boolean; size : integer) return std_logic_vector;
|
75 |
|
|
function calc_sum_len( widtha : integer; widthb : integer) return integer;
|
76 |
|
|
|
77 |
|
|
end cycloneii_atom_pack;
|
78 |
|
|
|
79 |
|
|
library IEEE;
|
80 |
|
|
use IEEE.std_logic_1164.all;
|
81 |
|
|
|
82 |
|
|
package body cycloneii_atom_pack is
|
83 |
|
|
|
84 |
|
|
type masklength is array (4 downto 1) of std_logic_vector(3 downto 0);
|
85 |
|
|
function str_to_bin (lut_mask : string) return std_logic_vector is
|
86 |
|
|
variable slice : masklength := (OTHERS => "0000");
|
87 |
|
|
variable mask : std_logic_vector(15 downto 0);
|
88 |
|
|
|
89 |
|
|
|
90 |
|
|
begin
|
91 |
|
|
|
92 |
|
|
for i in 1 to lut_mask'length loop
|
93 |
|
|
case lut_mask(i) is
|
94 |
|
|
when '0' => slice(i) := "0000";
|
95 |
|
|
when '1' => slice(i) := "0001";
|
96 |
|
|
when '2' => slice(i) := "0010";
|
97 |
|
|
when '3' => slice(i) := "0011";
|
98 |
|
|
when '4' => slice(i) := "0100";
|
99 |
|
|
when '5' => slice(i) := "0101";
|
100 |
|
|
when '6' => slice(i) := "0110";
|
101 |
|
|
when '7' => slice(i) := "0111";
|
102 |
|
|
when '8' => slice(i) := "1000";
|
103 |
|
|
when '9' => slice(i) := "1001";
|
104 |
|
|
when 'a' => slice(i) := "1010";
|
105 |
|
|
when 'A' => slice(i) := "1010";
|
106 |
|
|
when 'b' => slice(i) := "1011";
|
107 |
|
|
when 'B' => slice(i) := "1011";
|
108 |
|
|
when 'c' => slice(i) := "1100";
|
109 |
|
|
when 'C' => slice(i) := "1100";
|
110 |
|
|
when 'd' => slice(i) := "1101";
|
111 |
|
|
when 'D' => slice(i) := "1101";
|
112 |
|
|
when 'e' => slice(i) := "1110";
|
113 |
|
|
when 'E' => slice(i) := "1110";
|
114 |
|
|
when others => slice(i) := "1111";
|
115 |
|
|
end case;
|
116 |
|
|
end loop;
|
117 |
|
|
|
118 |
|
|
|
119 |
|
|
mask := (slice(1) & slice(2) & slice(3) & slice(4));
|
120 |
|
|
return (mask);
|
121 |
|
|
|
122 |
|
|
end str_to_bin;
|
123 |
|
|
|
124 |
|
|
function product (list: std_logic_vector) return std_logic is
|
125 |
|
|
begin
|
126 |
|
|
|
127 |
|
|
for i in 0 to 31 loop
|
128 |
|
|
if list(i) = '0' then
|
129 |
|
|
return ('0');
|
130 |
|
|
end if;
|
131 |
|
|
end loop;
|
132 |
|
|
return ('1');
|
133 |
|
|
|
134 |
|
|
end product;
|
135 |
|
|
|
136 |
|
|
function alt_conv_integer(arg : in std_logic_vector) return integer is
|
137 |
|
|
variable result : integer;
|
138 |
|
|
begin
|
139 |
|
|
result := 0;
|
140 |
|
|
for i in arg'range loop
|
141 |
|
|
if arg(i) = '1' then
|
142 |
|
|
result := result + 2**i;
|
143 |
|
|
end if;
|
144 |
|
|
end loop;
|
145 |
|
|
return result;
|
146 |
|
|
end alt_conv_integer;
|
147 |
|
|
|
148 |
|
|
function int2str( value : integer ) return string is
|
149 |
|
|
variable ivalue,index : integer;
|
150 |
|
|
variable digit : integer;
|
151 |
|
|
variable line_no: string(8 downto 1) := " ";
|
152 |
|
|
begin
|
153 |
|
|
ivalue := value;
|
154 |
|
|
index := 1;
|
155 |
|
|
if (ivalue = 0) then
|
156 |
|
|
line_no := " 0";
|
157 |
|
|
end if;
|
158 |
|
|
while (ivalue > 0) loop
|
159 |
|
|
digit := ivalue MOD 10;
|
160 |
|
|
ivalue := ivalue/10;
|
161 |
|
|
case digit is
|
162 |
|
|
when 0 =>
|
163 |
|
|
line_no(index) := '0';
|
164 |
|
|
when 1 =>
|
165 |
|
|
line_no(index) := '1';
|
166 |
|
|
when 2 =>
|
167 |
|
|
line_no(index) := '2';
|
168 |
|
|
when 3 =>
|
169 |
|
|
line_no(index) := '3';
|
170 |
|
|
when 4 =>
|
171 |
|
|
line_no(index) := '4';
|
172 |
|
|
when 5 =>
|
173 |
|
|
line_no(index) := '5';
|
174 |
|
|
when 6 =>
|
175 |
|
|
line_no(index) := '6';
|
176 |
|
|
when 7 =>
|
177 |
|
|
line_no(index) := '7';
|
178 |
|
|
when 8 =>
|
179 |
|
|
line_no(index) := '8';
|
180 |
|
|
when 9 =>
|
181 |
|
|
line_no(index) := '9';
|
182 |
|
|
when others =>
|
183 |
|
|
ASSERT FALSE
|
184 |
|
|
REPORT "Illegal number!"
|
185 |
|
|
SEVERITY ERROR;
|
186 |
|
|
end case;
|
187 |
|
|
index := index + 1;
|
188 |
|
|
end loop;
|
189 |
|
|
return line_no;
|
190 |
|
|
end;
|
191 |
|
|
|
192 |
|
|
function map_x_to_0 (value : std_logic) return std_logic is
|
193 |
|
|
begin
|
194 |
|
|
if (Is_X (value) = TRUE) then
|
195 |
|
|
return '0';
|
196 |
|
|
else
|
197 |
|
|
return value;
|
198 |
|
|
end if;
|
199 |
|
|
end;
|
200 |
|
|
|
201 |
|
|
function SelectDelay (CONSTANT Paths : IN VitalPathArray01Type) return TIME IS
|
202 |
|
|
|
203 |
|
|
variable Temp : TIME;
|
204 |
|
|
variable TransitionTime : TIME := TIME'HIGH;
|
205 |
|
|
variable PathDelay : TIME := TIME'HIGH;
|
206 |
|
|
|
207 |
|
|
begin
|
208 |
|
|
|
209 |
|
|
for i IN Paths'RANGE loop
|
210 |
|
|
next when not Paths(i).PathCondition;
|
211 |
|
|
|
212 |
|
|
next when Paths(i).InputChangeTime > TransitionTime;
|
213 |
|
|
|
214 |
|
|
Temp := Paths(i).PathDelay(tr01);
|
215 |
|
|
|
216 |
|
|
if Paths(i).InputChangeTime < TransitionTime then
|
217 |
|
|
PathDelay := Temp;
|
218 |
|
|
else
|
219 |
|
|
if Temp < PathDelay then
|
220 |
|
|
PathDelay := Temp;
|
221 |
|
|
end if;
|
222 |
|
|
end if;
|
223 |
|
|
TransitionTime := Paths(i).InputChangeTime;
|
224 |
|
|
end loop;
|
225 |
|
|
|
226 |
|
|
return PathDelay;
|
227 |
|
|
|
228 |
|
|
end;
|
229 |
|
|
|
230 |
|
|
function int2bit (arg : integer) return std_logic is
|
231 |
|
|
variable int_val : integer := arg;
|
232 |
|
|
variable result : std_logic;
|
233 |
|
|
begin
|
234 |
|
|
|
235 |
|
|
if (int_val = 0) then
|
236 |
|
|
result := '0';
|
237 |
|
|
else
|
238 |
|
|
result := '1';
|
239 |
|
|
end if;
|
240 |
|
|
|
241 |
|
|
return result;
|
242 |
|
|
end int2bit;
|
243 |
|
|
|
244 |
|
|
function int2bit (arg : boolean) return std_logic is
|
245 |
|
|
variable int_val : boolean := arg;
|
246 |
|
|
variable result : std_logic;
|
247 |
|
|
begin
|
248 |
|
|
|
249 |
|
|
if (int_val ) then
|
250 |
|
|
result := '1';
|
251 |
|
|
else
|
252 |
|
|
result := '0';
|
253 |
|
|
end if;
|
254 |
|
|
|
255 |
|
|
return result;
|
256 |
|
|
end int2bit;
|
257 |
|
|
|
258 |
|
|
function bin2int (s : std_logic_vector) return integer is
|
259 |
|
|
|
260 |
|
|
constant temp : std_logic_vector(s'high-s'low DOWNTO 0) := s;
|
261 |
|
|
variable result : integer := 0;
|
262 |
|
|
begin
|
263 |
|
|
for i in temp'range loop
|
264 |
|
|
if (temp(i) = '1') then
|
265 |
|
|
result := result + (2**i);
|
266 |
|
|
end if;
|
267 |
|
|
end loop;
|
268 |
|
|
return(result);
|
269 |
|
|
end bin2int;
|
270 |
|
|
|
271 |
|
|
function bin2int (s : std_logic) return integer is
|
272 |
|
|
constant temp : std_logic := s;
|
273 |
|
|
variable result : integer := 0;
|
274 |
|
|
begin
|
275 |
|
|
if (temp = '1') then
|
276 |
|
|
result := 1;
|
277 |
|
|
else
|
278 |
|
|
result := 0;
|
279 |
|
|
end if;
|
280 |
|
|
return(result);
|
281 |
|
|
end bin2int;
|
282 |
|
|
|
283 |
|
|
function int2bin (arg : integer; size : integer) return std_logic_vector is
|
284 |
|
|
variable int_val : integer := arg;
|
285 |
|
|
variable result : std_logic_vector(size-1 downto 0);
|
286 |
|
|
begin
|
287 |
|
|
for i in 0 to result'left loop
|
288 |
|
|
if ((int_val mod 2) = 0) then
|
289 |
|
|
result(i) := '0';
|
290 |
|
|
else
|
291 |
|
|
result(i) := '1';
|
292 |
|
|
end if;
|
293 |
|
|
int_val := int_val/2;
|
294 |
|
|
end loop;
|
295 |
|
|
return result;
|
296 |
|
|
end int2bin;
|
297 |
|
|
|
298 |
|
|
function int2bin (arg : boolean; size : integer) return std_logic_vector is
|
299 |
|
|
variable result : std_logic_vector(size-1 downto 0);
|
300 |
|
|
begin
|
301 |
|
|
if(arg)then
|
302 |
|
|
result := (OTHERS => '1');
|
303 |
|
|
else
|
304 |
|
|
result := (OTHERS => '0');
|
305 |
|
|
end if;
|
306 |
|
|
return result;
|
307 |
|
|
end int2bin;
|
308 |
|
|
|
309 |
|
|
function calc_sum_len( widtha : integer; widthb : integer) return integer is
|
310 |
|
|
variable result: integer;
|
311 |
|
|
begin
|
312 |
|
|
if(widtha >= widthb) then
|
313 |
|
|
result := widtha + 1;
|
314 |
|
|
else
|
315 |
|
|
result := widthb + 1;
|
316 |
|
|
end if;
|
317 |
|
|
return result;
|
318 |
|
|
end calc_sum_len;
|
319 |
|
|
|
320 |
|
|
end cycloneii_atom_pack;
|
321 |
|
|
|
322 |
|
|
Library ieee;
|
323 |
|
|
use ieee.std_logic_1164.all;
|
324 |
|
|
|
325 |
|
|
Package cycloneii_pllpack is
|
326 |
|
|
|
327 |
|
|
|
328 |
|
|
procedure find_simple_integer_fraction( numerator : in integer;
|
329 |
|
|
denominator : in integer;
|
330 |
|
|
max_denom : in integer;
|
331 |
|
|
fraction_num : out integer;
|
332 |
|
|
fraction_div : out integer);
|
333 |
|
|
|
334 |
|
|
procedure find_m_and_n_4_manual_phase ( inclock_period : in integer;
|
335 |
|
|
vco_phase_shift_step : in integer;
|
336 |
|
|
clk0_mult: in integer; clk1_mult: in integer;
|
337 |
|
|
clk2_mult: in integer; clk3_mult: in integer;
|
338 |
|
|
clk4_mult: in integer; clk5_mult: in integer;
|
339 |
|
|
clk6_mult: in integer; clk7_mult: in integer;
|
340 |
|
|
clk8_mult: in integer; clk9_mult: in integer;
|
341 |
|
|
clk0_div : in integer; clk1_div : in integer;
|
342 |
|
|
clk2_div : in integer; clk3_div : in integer;
|
343 |
|
|
clk4_div : in integer; clk5_div : in integer;
|
344 |
|
|
clk6_div : in integer; clk7_div : in integer;
|
345 |
|
|
clk8_div : in integer; clk9_div : in integer;
|
346 |
|
|
clk0_used : in string; clk1_used : in string;
|
347 |
|
|
clk2_used : in string; clk3_used : in string;
|
348 |
|
|
clk4_used : in string; clk5_used : in string;
|
349 |
|
|
clk6_used : in string; clk7_used : in string;
|
350 |
|
|
clk8_used : in string; clk9_used : in string;
|
351 |
|
|
m : out integer;
|
352 |
|
|
n : out integer );
|
353 |
|
|
|
354 |
|
|
function gcd (X: integer; Y: integer) return integer;
|
355 |
|
|
|
356 |
|
|
function count_digit (X: integer) return integer;
|
357 |
|
|
|
358 |
|
|
function scale_num (X: integer; Y: integer) return integer;
|
359 |
|
|
|
360 |
|
|
function lcm (A1: integer; A2: integer; A3: integer; A4: integer;
|
361 |
|
|
A5: integer; A6: integer; A7: integer;
|
362 |
|
|
A8: integer; A9: integer; A10: integer; P: integer) return integer;
|
363 |
|
|
|
364 |
|
|
function output_counter_value (clk_divide: integer; clk_mult : integer ;
|
365 |
|
|
M: integer; N: integer ) return integer;
|
366 |
|
|
|
367 |
|
|
function counter_mode (duty_cycle: integer; output_counter_value: integer) return string;
|
368 |
|
|
|
369 |
|
|
function counter_high (output_counter_value: integer := 1; duty_cycle: integer)
|
370 |
|
|
return integer;
|
371 |
|
|
|
372 |
|
|
function counter_low (output_counter_value: integer; duty_cycle: integer)
|
373 |
|
|
return integer;
|
374 |
|
|
|
375 |
|
|
function mintimedelay (t1: integer; t2: integer; t3: integer; t4: integer;
|
376 |
|
|
t5: integer; t6: integer; t7: integer; t8: integer;
|
377 |
|
|
t9: integer; t10: integer) return integer;
|
378 |
|
|
|
379 |
|
|
function maxnegabs (t1: integer; t2: integer; t3: integer; t4: integer;
|
380 |
|
|
t5: integer; t6: integer; t7: integer; t8: integer;
|
381 |
|
|
t9: integer; t10: integer) return integer;
|
382 |
|
|
|
383 |
|
|
function counter_time_delay ( clk_time_delay: integer;
|
384 |
|
|
m_time_delay: integer; n_time_delay: integer)
|
385 |
|
|
return integer;
|
386 |
|
|
|
387 |
|
|
function get_phase_degree (phase_shift: integer; clk_period: integer) return integer;
|
388 |
|
|
|
389 |
|
|
function counter_initial (tap_phase: integer; m: integer; n: integer)
|
390 |
|
|
return integer;
|
391 |
|
|
|
392 |
|
|
function counter_ph (tap_phase: integer; m : integer; n: integer) return integer;
|
393 |
|
|
|
394 |
|
|
function ph_adjust (tap_phase: integer; ph_base : integer) return integer;
|
395 |
|
|
|
396 |
|
|
function translate_string (mode : string) return string;
|
397 |
|
|
|
398 |
|
|
function str2int (s : string) return integer;
|
399 |
|
|
|
400 |
|
|
function dqs_str2int (s : string) return integer;
|
401 |
|
|
|
402 |
|
|
end cycloneii_pllpack;
|
403 |
|
|
|
404 |
|
|
package body cycloneii_pllpack is
|
405 |
|
|
|
406 |
|
|
|
407 |
|
|
-- finds the closest integer fraction of a given pair of numerator and denominator.
|
408 |
|
|
procedure find_simple_integer_fraction( numerator : in integer;
|
409 |
|
|
denominator : in integer;
|
410 |
|
|
max_denom : in integer;
|
411 |
|
|
fraction_num : out integer;
|
412 |
|
|
fraction_div : out integer) is
|
413 |
|
|
constant MAX_ITER : integer := 20;
|
414 |
|
|
type INT_ARRAY is array ((MAX_ITER-1) downto 0) of integer;
|
415 |
|
|
|
416 |
|
|
variable quotient_array : INT_ARRAY;
|
417 |
|
|
variable int_loop_iter : integer;
|
418 |
|
|
variable int_quot : integer;
|
419 |
|
|
variable m_value : integer;
|
420 |
|
|
variable d_value : integer;
|
421 |
|
|
variable old_m_value : integer;
|
422 |
|
|
variable swap : integer;
|
423 |
|
|
variable loop_iter : integer;
|
424 |
|
|
variable num : integer;
|
425 |
|
|
variable den : integer;
|
426 |
|
|
variable i_max_iter : integer;
|
427 |
|
|
|
428 |
|
|
begin
|
429 |
|
|
loop_iter := 0;
|
430 |
|
|
|
431 |
|
|
if (numerator = 0) then
|
432 |
|
|
num := 1;
|
433 |
|
|
else
|
434 |
|
|
num := numerator;
|
435 |
|
|
end if;
|
436 |
|
|
|
437 |
|
|
if (denominator = 0) then
|
438 |
|
|
den := 1;
|
439 |
|
|
else
|
440 |
|
|
den := denominator;
|
441 |
|
|
end if;
|
442 |
|
|
|
443 |
|
|
i_max_iter := max_iter;
|
444 |
|
|
|
445 |
|
|
while (loop_iter < i_max_iter) loop
|
446 |
|
|
int_quot := num / den;
|
447 |
|
|
quotient_array(loop_iter) := int_quot;
|
448 |
|
|
num := num - (den*int_quot);
|
449 |
|
|
loop_iter := loop_iter+1;
|
450 |
|
|
|
451 |
|
|
if ((num = 0) or (max_denom /= -1) or (loop_iter = i_max_iter)) then
|
452 |
|
|
-- calculate the numerator and denominator if there is a restriction on the
|
453 |
|
|
-- max denom value or if the loop is ending
|
454 |
|
|
m_value := 0;
|
455 |
|
|
d_value := 1;
|
456 |
|
|
-- get the rounded value at this stage for the remaining fraction
|
457 |
|
|
if (den /= 0) then
|
458 |
|
|
m_value := (2*num/den);
|
459 |
|
|
end if;
|
460 |
|
|
-- calculate the fraction numerator and denominator at this stage
|
461 |
|
|
for int_loop_iter in (loop_iter-1) downto 0 loop
|
462 |
|
|
if (m_value = 0) then
|
463 |
|
|
m_value := quotient_array(int_loop_iter);
|
464 |
|
|
d_value := 1;
|
465 |
|
|
else
|
466 |
|
|
old_m_value := m_value;
|
467 |
|
|
m_value := (quotient_array(int_loop_iter)*m_value) + d_value;
|
468 |
|
|
d_value := old_m_value;
|
469 |
|
|
end if;
|
470 |
|
|
end loop;
|
471 |
|
|
-- if the denominator is less than the maximum denom_value or if there is no restriction save it
|
472 |
|
|
if ((d_value <= max_denom) or (max_denom = -1)) then
|
473 |
|
|
if ((m_value = 0) or (d_value = 0)) then
|
474 |
|
|
fraction_num := numerator;
|
475 |
|
|
fraction_div := denominator;
|
476 |
|
|
else
|
477 |
|
|
fraction_num := m_value;
|
478 |
|
|
fraction_div := d_value;
|
479 |
|
|
end if;
|
480 |
|
|
end if;
|
481 |
|
|
-- end the loop if the denomitor has overflown or the numerator is zero (no remainder during this round)
|
482 |
|
|
if (((d_value > max_denom) and (max_denom /= -1)) or (num = 0)) then
|
483 |
|
|
i_max_iter := loop_iter;
|
484 |
|
|
end if;
|
485 |
|
|
end if;
|
486 |
|
|
-- swap the numerator and denominator for the next round
|
487 |
|
|
swap := den;
|
488 |
|
|
den := num;
|
489 |
|
|
num := swap;
|
490 |
|
|
end loop;
|
491 |
|
|
end find_simple_integer_fraction;
|
492 |
|
|
|
493 |
|
|
-- find the M and N values for Manual phase based on the following 5 criterias:
|
494 |
|
|
-- 1. The PFD frequency (i.e. Fin / N) must be in the range 5 MHz to 720 MHz
|
495 |
|
|
-- 2. The VCO frequency (i.e. Fin * M / N) must be in the range 300 MHz to 1300 MHz
|
496 |
|
|
-- 3. M is less than 512
|
497 |
|
|
-- 4. N is less than 512
|
498 |
|
|
-- 5. It's the smallest M/N which satisfies all the above constraints, and is within 2ps
|
499 |
|
|
-- of the desired vco-phase-shift-step
|
500 |
|
|
procedure find_m_and_n_4_manual_phase ( inclock_period : in integer;
|
501 |
|
|
vco_phase_shift_step : in integer;
|
502 |
|
|
clk0_mult: in integer; clk1_mult: in integer;
|
503 |
|
|
clk2_mult: in integer; clk3_mult: in integer;
|
504 |
|
|
clk4_mult: in integer; clk5_mult: in integer;
|
505 |
|
|
clk6_mult: in integer; clk7_mult: in integer;
|
506 |
|
|
clk8_mult: in integer; clk9_mult: in integer;
|
507 |
|
|
clk0_div : in integer; clk1_div : in integer;
|
508 |
|
|
clk2_div : in integer; clk3_div : in integer;
|
509 |
|
|
clk4_div : in integer; clk5_div : in integer;
|
510 |
|
|
clk6_div : in integer; clk7_div : in integer;
|
511 |
|
|
clk8_div : in integer; clk9_div : in integer;
|
512 |
|
|
clk0_used : in string; clk1_used : in string;
|
513 |
|
|
clk2_used : in string; clk3_used : in string;
|
514 |
|
|
clk4_used : in string; clk5_used : in string;
|
515 |
|
|
clk6_used : in string; clk7_used : in string;
|
516 |
|
|
clk8_used : in string; clk9_used : in string;
|
517 |
|
|
m : out integer;
|
518 |
|
|
n : out integer ) is
|
519 |
|
|
constant MAX_M : integer := 511;
|
520 |
|
|
constant MAX_N : integer := 511;
|
521 |
|
|
constant MAX_PFD : integer := 720;
|
522 |
|
|
constant MIN_PFD : integer := 5;
|
523 |
|
|
constant MAX_VCO : integer := 1600; -- max vco frequency. (in mHz)
|
524 |
|
|
constant MIN_VCO : integer := 300; -- min vco frequency. (in mHz)
|
525 |
|
|
constant MAX_OFFSET : real := 0.004;
|
526 |
|
|
|
527 |
|
|
variable vco_period : integer;
|
528 |
|
|
variable pfd_freq : integer;
|
529 |
|
|
variable vco_freq : integer;
|
530 |
|
|
variable vco_ps_step_value : integer;
|
531 |
|
|
|
532 |
|
|
variable i_m : integer;
|
533 |
|
|
variable i_n : integer;
|
534 |
|
|
|
535 |
|
|
variable i_pre_m : integer;
|
536 |
|
|
variable i_pre_n : integer;
|
537 |
|
|
|
538 |
|
|
variable closest_vco_step_value : integer;
|
539 |
|
|
|
540 |
|
|
variable i_max_iter : integer;
|
541 |
|
|
variable loop_iter : integer;
|
542 |
|
|
|
543 |
|
|
variable clk0_div_factor_real : real;
|
544 |
|
|
variable clk1_div_factor_real : real;
|
545 |
|
|
variable clk2_div_factor_real : real;
|
546 |
|
|
variable clk3_div_factor_real : real;
|
547 |
|
|
variable clk4_div_factor_real : real;
|
548 |
|
|
variable clk5_div_factor_real : real;
|
549 |
|
|
variable clk6_div_factor_real : real;
|
550 |
|
|
variable clk7_div_factor_real : real;
|
551 |
|
|
variable clk8_div_factor_real : real;
|
552 |
|
|
variable clk9_div_factor_real : real;
|
553 |
|
|
variable clk0_div_factor_int : integer;
|
554 |
|
|
variable clk1_div_factor_int : integer;
|
555 |
|
|
variable clk2_div_factor_int : integer;
|
556 |
|
|
variable clk3_div_factor_int : integer;
|
557 |
|
|
variable clk4_div_factor_int : integer;
|
558 |
|
|
variable clk5_div_factor_int : integer;
|
559 |
|
|
variable clk6_div_factor_int : integer;
|
560 |
|
|
variable clk7_div_factor_int : integer;
|
561 |
|
|
variable clk8_div_factor_int : integer;
|
562 |
|
|
variable clk9_div_factor_int : integer;
|
563 |
|
|
begin
|
564 |
|
|
vco_period := vco_phase_shift_step * 8;
|
565 |
|
|
i_pre_m := 0;
|
566 |
|
|
i_pre_n := 0;
|
567 |
|
|
closest_vco_step_value := 0;
|
568 |
|
|
|
569 |
|
|
LOOP_1 : for i_n_out in 1 to MAX_N loop
|
570 |
|
|
for i_m_out in 1 to MAX_M loop
|
571 |
|
|
|
572 |
|
|
clk0_div_factor_real := real(clk0_div * i_m_out) / real(clk0_mult * i_n_out);
|
573 |
|
|
clk1_div_factor_real := real(clk1_div * i_m_out) / real(clk1_mult * i_n_out);
|
574 |
|
|
clk2_div_factor_real := real(clk2_div * i_m_out) / real(clk2_mult * i_n_out);
|
575 |
|
|
clk3_div_factor_real := real(clk3_div * i_m_out) / real(clk3_mult * i_n_out);
|
576 |
|
|
clk4_div_factor_real := real(clk4_div * i_m_out) / real(clk4_mult * i_n_out);
|
577 |
|
|
clk5_div_factor_real := real(clk5_div * i_m_out) / real(clk5_mult * i_n_out);
|
578 |
|
|
clk6_div_factor_real := real(clk6_div * i_m_out) / real(clk6_mult * i_n_out);
|
579 |
|
|
clk7_div_factor_real := real(clk7_div * i_m_out) / real(clk7_mult * i_n_out);
|
580 |
|
|
clk8_div_factor_real := real(clk8_div * i_m_out) / real(clk8_mult * i_n_out);
|
581 |
|
|
clk9_div_factor_real := real(clk9_div * i_m_out) / real(clk9_mult * i_n_out);
|
582 |
|
|
|
583 |
|
|
clk0_div_factor_int := integer(clk0_div_factor_real);
|
584 |
|
|
clk1_div_factor_int := integer(clk1_div_factor_real);
|
585 |
|
|
clk2_div_factor_int := integer(clk2_div_factor_real);
|
586 |
|
|
clk3_div_factor_int := integer(clk3_div_factor_real);
|
587 |
|
|
clk4_div_factor_int := integer(clk4_div_factor_real);
|
588 |
|
|
clk5_div_factor_int := integer(clk5_div_factor_real);
|
589 |
|
|
clk6_div_factor_int := integer(clk6_div_factor_real);
|
590 |
|
|
clk7_div_factor_int := integer(clk7_div_factor_real);
|
591 |
|
|
clk8_div_factor_int := integer(clk8_div_factor_real);
|
592 |
|
|
clk9_div_factor_int := integer(clk9_div_factor_real);
|
593 |
|
|
|
594 |
|
|
if (((abs(clk0_div_factor_real - real(clk0_div_factor_int)) < MAX_OFFSET) or (clk0_used = "unused")) and
|
595 |
|
|
((abs(clk1_div_factor_real - real(clk1_div_factor_int)) < MAX_OFFSET) or (clk1_used = "unused")) and
|
596 |
|
|
((abs(clk2_div_factor_real - real(clk2_div_factor_int)) < MAX_OFFSET) or (clk2_used = "unused")) and
|
597 |
|
|
((abs(clk3_div_factor_real - real(clk3_div_factor_int)) < MAX_OFFSET) or (clk3_used = "unused")) and
|
598 |
|
|
((abs(clk4_div_factor_real - real(clk4_div_factor_int)) < MAX_OFFSET) or (clk4_used = "unused")) and
|
599 |
|
|
((abs(clk5_div_factor_real - real(clk5_div_factor_int)) < MAX_OFFSET) or (clk5_used = "unused")) and
|
600 |
|
|
((abs(clk6_div_factor_real - real(clk6_div_factor_int)) < MAX_OFFSET) or (clk6_used = "unused")) and
|
601 |
|
|
((abs(clk7_div_factor_real - real(clk7_div_factor_int)) < MAX_OFFSET) or (clk7_used = "unused")) and
|
602 |
|
|
((abs(clk8_div_factor_real - real(clk8_div_factor_int)) < MAX_OFFSET) or (clk8_used = "unused")) and
|
603 |
|
|
((abs(clk9_div_factor_real - real(clk9_div_factor_int)) < MAX_OFFSET) or (clk9_used = "unused")) )
|
604 |
|
|
then
|
605 |
|
|
if ((i_m_out /= 0) and (i_n_out /= 0))
|
606 |
|
|
then
|
607 |
|
|
pfd_freq := 1000000 / (inclock_period * i_n_out);
|
608 |
|
|
vco_freq := (1000000 * i_m_out) / (inclock_period * i_n_out);
|
609 |
|
|
vco_ps_step_value := (inclock_period * i_n_out) / (8 * i_m_out);
|
610 |
|
|
|
611 |
|
|
if ( (i_m_out < max_m) and (i_n_out < max_n) and (pfd_freq >= min_pfd) and (pfd_freq <= max_pfd) and
|
612 |
|
|
(vco_freq >= min_vco) and (vco_freq <= max_vco) )
|
613 |
|
|
then
|
614 |
|
|
if (abs(vco_ps_step_value - vco_phase_shift_step) <= 2)
|
615 |
|
|
then
|
616 |
|
|
i_pre_m := i_m_out;
|
617 |
|
|
i_pre_n := i_n_out;
|
618 |
|
|
exit LOOP_1;
|
619 |
|
|
else
|
620 |
|
|
if ((closest_vco_step_value = 0) or (abs(vco_ps_step_value - vco_phase_shift_step) < abs(closest_vco_step_value - vco_phase_shift_step)))
|
621 |
|
|
then
|
622 |
|
|
i_pre_m := i_m_out;
|
623 |
|
|
i_pre_n := i_n_out;
|
624 |
|
|
closest_vco_step_value := vco_ps_step_value;
|
625 |
|
|
end if;
|
626 |
|
|
end if;
|
627 |
|
|
end if;
|
628 |
|
|
end if;
|
629 |
|
|
end if;
|
630 |
|
|
end loop;
|
631 |
|
|
end loop;
|
632 |
|
|
|
633 |
|
|
if ((i_pre_m /= 0) and (i_pre_n /= 0))
|
634 |
|
|
then
|
635 |
|
|
find_simple_integer_fraction(i_pre_m, i_pre_n,
|
636 |
|
|
MAX_N, m, n);
|
637 |
|
|
else
|
638 |
|
|
n := 1;
|
639 |
|
|
m := lcm (clk0_mult, clk1_mult, clk2_mult, clk3_mult,
|
640 |
|
|
clk4_mult, clk5_mult, clk6_mult,
|
641 |
|
|
clk7_mult, clk8_mult, clk9_mult, inclock_period);
|
642 |
|
|
end if;
|
643 |
|
|
end find_m_and_n_4_manual_phase;
|
644 |
|
|
|
645 |
|
|
-- find the greatest common denominator of X and Y
|
646 |
|
|
function gcd (X: integer; Y: integer) return integer is
|
647 |
|
|
variable L, S, R, G : integer := 1;
|
648 |
|
|
begin
|
649 |
|
|
if (X < Y) then -- find which is smaller.
|
650 |
|
|
S := X;
|
651 |
|
|
L := Y;
|
652 |
|
|
else
|
653 |
|
|
S := Y;
|
654 |
|
|
L := X;
|
655 |
|
|
end if;
|
656 |
|
|
|
657 |
|
|
R := S;
|
658 |
|
|
while ( R > 1) loop
|
659 |
|
|
S := L;
|
660 |
|
|
L := R;
|
661 |
|
|
R := S rem L; -- divide bigger number by smaller.
|
662 |
|
|
-- remainder becomes smaller number.
|
663 |
|
|
end loop;
|
664 |
|
|
if (R = 0) then -- if evenly divisible then L is gcd else it is 1.
|
665 |
|
|
G := L;
|
666 |
|
|
else
|
667 |
|
|
G := R;
|
668 |
|
|
end if;
|
669 |
|
|
|
670 |
|
|
return G;
|
671 |
|
|
end gcd;
|
672 |
|
|
|
673 |
|
|
-- count the number of digits in the given integer
|
674 |
|
|
function count_digit (X: integer)
|
675 |
|
|
return integer is
|
676 |
|
|
variable count, result: integer := 0;
|
677 |
|
|
begin
|
678 |
|
|
result := X;
|
679 |
|
|
while (result /= 0) loop
|
680 |
|
|
result := (result / 10);
|
681 |
|
|
count := count + 1;
|
682 |
|
|
end loop;
|
683 |
|
|
|
684 |
|
|
return count;
|
685 |
|
|
end count_digit;
|
686 |
|
|
|
687 |
|
|
-- reduce the given huge number to Y significant digits
|
688 |
|
|
function scale_num (X: integer; Y: integer)
|
689 |
|
|
return integer is
|
690 |
|
|
variable count : integer := 0;
|
691 |
|
|
variable lc, fac_ten, result: integer := 1;
|
692 |
|
|
begin
|
693 |
|
|
count := count_digit(X);
|
694 |
|
|
|
695 |
|
|
for lc in 1 to (count-Y) loop
|
696 |
|
|
fac_ten := fac_ten * 10;
|
697 |
|
|
end loop;
|
698 |
|
|
|
699 |
|
|
result := (X / fac_ten);
|
700 |
|
|
|
701 |
|
|
return result;
|
702 |
|
|
end scale_num;
|
703 |
|
|
|
704 |
|
|
-- find the least common multiple of A1 to A10
|
705 |
|
|
function lcm (A1: integer; A2: integer; A3: integer; A4: integer;
|
706 |
|
|
A5: integer; A6: integer; A7: integer;
|
707 |
|
|
A8: integer; A9: integer; A10: integer; P: integer)
|
708 |
|
|
return integer is
|
709 |
|
|
variable M1, M2, M3, M4, M5 , M6, M7, M8, M9, R: integer := 1;
|
710 |
|
|
begin
|
711 |
|
|
M1 := (A1 * A2)/gcd(A1, A2);
|
712 |
|
|
M2 := (M1 * A3)/gcd(M1, A3);
|
713 |
|
|
M3 := (M2 * A4)/gcd(M2, A4);
|
714 |
|
|
M4 := (M3 * A5)/gcd(M3, A5);
|
715 |
|
|
M5 := (M4 * A6)/gcd(M4, A6);
|
716 |
|
|
M6 := (M5 * A7)/gcd(M5, A7);
|
717 |
|
|
M7 := (M6 * A8)/gcd(M6, A8);
|
718 |
|
|
M8 := (M7 * A9)/gcd(M7, A9);
|
719 |
|
|
M9 := (M8 * A10)/gcd(M8, A10);
|
720 |
|
|
if (M9 < 3) then
|
721 |
|
|
R := 10;
|
722 |
|
|
elsif (M9 = 3) then
|
723 |
|
|
R := 9;
|
724 |
|
|
elsif ((M9 <= 10) and (M9 > 3)) then
|
725 |
|
|
R := 4 * M9;
|
726 |
|
|
elsif (M9 > 1000) then
|
727 |
|
|
R := scale_num(M9,3);
|
728 |
|
|
else
|
729 |
|
|
R := M9 ;
|
730 |
|
|
end if;
|
731 |
|
|
|
732 |
|
|
return R;
|
733 |
|
|
end lcm;
|
734 |
|
|
|
735 |
|
|
-- find the factor of division of the output clock frequency compared to the VCO
|
736 |
|
|
function output_counter_value (clk_divide: integer; clk_mult: integer ;
|
737 |
|
|
M: integer; N: integer ) return integer is
|
738 |
|
|
variable r_real : real := 1.0;
|
739 |
|
|
variable r: integer := 1;
|
740 |
|
|
begin
|
741 |
|
|
r_real := real(clk_divide * M)/ real(clk_mult * N);
|
742 |
|
|
r := integer(r_real);
|
743 |
|
|
|
744 |
|
|
return R;
|
745 |
|
|
end output_counter_value;
|
746 |
|
|
|
747 |
|
|
-- find the mode of each PLL counter - bypass, even or odd
|
748 |
|
|
function counter_mode (duty_cycle: integer; output_counter_value: integer)
|
749 |
|
|
return string is
|
750 |
|
|
variable R: string (1 to 6) := " ";
|
751 |
|
|
variable counter_value: integer := 1;
|
752 |
|
|
begin
|
753 |
|
|
counter_value := (2*duty_cycle*output_counter_value)/100;
|
754 |
|
|
if output_counter_value = 1 then
|
755 |
|
|
R := "bypass";
|
756 |
|
|
elsif (counter_value REM 2) = 0 then
|
757 |
|
|
R := " even";
|
758 |
|
|
else
|
759 |
|
|
R := " odd";
|
760 |
|
|
end if;
|
761 |
|
|
|
762 |
|
|
return R;
|
763 |
|
|
end counter_mode;
|
764 |
|
|
|
765 |
|
|
-- find the number of VCO clock cycles to hold the output clock high
|
766 |
|
|
function counter_high (output_counter_value: integer := 1; duty_cycle: integer)
|
767 |
|
|
return integer is
|
768 |
|
|
variable R: integer := 1;
|
769 |
|
|
variable half_cycle_high : integer := 1;
|
770 |
|
|
begin
|
771 |
|
|
half_cycle_high := (duty_cycle * output_counter_value *2)/100 ;
|
772 |
|
|
if (half_cycle_high REM 2 = 0) then
|
773 |
|
|
R := half_cycle_high/2 ;
|
774 |
|
|
else
|
775 |
|
|
R := (half_cycle_high/2) + 1;
|
776 |
|
|
end if;
|
777 |
|
|
|
778 |
|
|
return R;
|
779 |
|
|
end;
|
780 |
|
|
|
781 |
|
|
-- find the number of VCO clock cycles to hold the output clock low
|
782 |
|
|
function counter_low (output_counter_value: integer; duty_cycle: integer)
|
783 |
|
|
return integer is
|
784 |
|
|
variable R, R1: integer := 1;
|
785 |
|
|
variable half_cycle_high : integer := 1;
|
786 |
|
|
begin
|
787 |
|
|
half_cycle_high := (duty_cycle * output_counter_value*2)/100 ;
|
788 |
|
|
if (half_cycle_high REM 2 = 0) then
|
789 |
|
|
R1 := half_cycle_high/2 ;
|
790 |
|
|
else
|
791 |
|
|
R1 := (half_cycle_high/2) + 1;
|
792 |
|
|
end if;
|
793 |
|
|
|
794 |
|
|
R := output_counter_value - R1;
|
795 |
|
|
|
796 |
|
|
if (R = 0) then
|
797 |
|
|
R := 1;
|
798 |
|
|
end if;
|
799 |
|
|
|
800 |
|
|
return R;
|
801 |
|
|
end;
|
802 |
|
|
|
803 |
|
|
-- find the smallest time delay amongst t1 to t10
|
804 |
|
|
function mintimedelay (t1: integer; t2: integer; t3: integer; t4: integer;
|
805 |
|
|
t5: integer; t6: integer; t7: integer; t8: integer;
|
806 |
|
|
t9: integer; t10: integer) return integer is
|
807 |
|
|
variable m1,m2,m3,m4,m5,m6,m7,m8,m9 : integer := 0;
|
808 |
|
|
begin
|
809 |
|
|
if (t1 < t2) then m1 := t1; else m1 := t2; end if;
|
810 |
|
|
if (m1 < t3) then m2 := m1; else m2 := t3; end if;
|
811 |
|
|
if (m2 < t4) then m3 := m2; else m3 := t4; end if;
|
812 |
|
|
if (m3 < t5) then m4 := m3; else m4 := t5; end if;
|
813 |
|
|
if (m4 < t6) then m5 := m4; else m5 := t6; end if;
|
814 |
|
|
if (m5 < t7) then m6 := m5; else m6 := t7; end if;
|
815 |
|
|
if (m6 < t8) then m7 := m6; else m7 := t8; end if;
|
816 |
|
|
if (m7 < t9) then m8 := m7; else m8 := t9; end if;
|
817 |
|
|
if (m8 < t10) then m9 := m8; else m9 := t10; end if;
|
818 |
|
|
if (m9 > 0) then return m9; else return 0; end if;
|
819 |
|
|
end;
|
820 |
|
|
|
821 |
|
|
-- find the numerically largest negative number, and return its absolute value
|
822 |
|
|
function maxnegabs (t1: integer; t2: integer; t3: integer; t4: integer;
|
823 |
|
|
t5: integer; t6: integer; t7: integer; t8: integer;
|
824 |
|
|
t9: integer; t10: integer) return integer is
|
825 |
|
|
variable m1,m2,m3,m4,m5,m6,m7,m8,m9 : integer := 0;
|
826 |
|
|
begin
|
827 |
|
|
if (t1 < t2) then m1 := t1; else m1 := t2; end if;
|
828 |
|
|
if (m1 < t3) then m2 := m1; else m2 := t3; end if;
|
829 |
|
|
if (m2 < t4) then m3 := m2; else m3 := t4; end if;
|
830 |
|
|
if (m3 < t5) then m4 := m3; else m4 := t5; end if;
|
831 |
|
|
if (m4 < t6) then m5 := m4; else m5 := t6; end if;
|
832 |
|
|
if (m5 < t7) then m6 := m5; else m6 := t7; end if;
|
833 |
|
|
if (m6 < t8) then m7 := m6; else m7 := t8; end if;
|
834 |
|
|
if (m7 < t9) then m8 := m7; else m8 := t9; end if;
|
835 |
|
|
if (m8 < t10) then m9 := m8; else m9 := t10; end if;
|
836 |
|
|
if (m9 < 0) then return (0 - m9); else return 0; end if;
|
837 |
|
|
end;
|
838 |
|
|
|
839 |
|
|
-- adjust the phase (tap_phase) with the largest negative number (ph_base)
|
840 |
|
|
function ph_adjust (tap_phase: integer; ph_base : integer) return integer is
|
841 |
|
|
begin
|
842 |
|
|
return (tap_phase + ph_base);
|
843 |
|
|
end;
|
844 |
|
|
|
845 |
|
|
-- find the time delay for each PLL counter
|
846 |
|
|
function counter_time_delay (clk_time_delay: integer;
|
847 |
|
|
m_time_delay: integer; n_time_delay: integer)
|
848 |
|
|
return integer is
|
849 |
|
|
variable R: integer := 0;
|
850 |
|
|
begin
|
851 |
|
|
R := clk_time_delay + m_time_delay - n_time_delay;
|
852 |
|
|
|
853 |
|
|
return R;
|
854 |
|
|
end;
|
855 |
|
|
|
856 |
|
|
-- calculate the given phase shift (in ps) in terms of degrees
|
857 |
|
|
function get_phase_degree (phase_shift: integer; clk_period: integer)
|
858 |
|
|
return integer is
|
859 |
|
|
variable result: integer := 0;
|
860 |
|
|
begin
|
861 |
|
|
result := ( phase_shift * 360 ) / clk_period;
|
862 |
|
|
-- to round up the calculation result
|
863 |
|
|
if (result > 0) then
|
864 |
|
|
result := result + 1;
|
865 |
|
|
elsif (result < 0) then
|
866 |
|
|
result := result - 1;
|
867 |
|
|
else
|
868 |
|
|
result := 0;
|
869 |
|
|
end if;
|
870 |
|
|
|
871 |
|
|
return result;
|
872 |
|
|
end;
|
873 |
|
|
|
874 |
|
|
-- find the number of VCO clock cycles to wait initially before the first rising
|
875 |
|
|
-- edge of the output clock
|
876 |
|
|
function counter_initial (tap_phase: integer; m: integer; n: integer)
|
877 |
|
|
return integer is
|
878 |
|
|
variable R: integer;
|
879 |
|
|
variable R1: real;
|
880 |
|
|
begin
|
881 |
|
|
R1 := (real(abs(tap_phase)) * real(m))/(360.0 * real(n)) + 0.6;
|
882 |
|
|
-- Note NCSim VHDL had problem in rounding up for 0.5 - 0.99.
|
883 |
|
|
-- This checking will ensure that the rounding up is done.
|
884 |
|
|
if (R1 >= 0.5) and (R1 <= 1.0) then
|
885 |
|
|
R1 := 1.0;
|
886 |
|
|
end if;
|
887 |
|
|
|
888 |
|
|
R := integer(R1);
|
889 |
|
|
|
890 |
|
|
return R;
|
891 |
|
|
end;
|
892 |
|
|
|
893 |
|
|
-- find which VCO phase tap (0 to 7) to align the rising edge of the output clock to
|
894 |
|
|
function counter_ph (tap_phase: integer; m: integer; n: integer) return integer is
|
895 |
|
|
variable R: integer := 0;
|
896 |
|
|
begin
|
897 |
|
|
-- 0.5 is added for proper rounding of the tap_phase.
|
898 |
|
|
R := integer(real(integer(real(tap_phase * m / n)+ 0.5) REM 360)/45.0) rem 8;
|
899 |
|
|
|
900 |
|
|
return R;
|
901 |
|
|
end;
|
902 |
|
|
|
903 |
|
|
-- convert given string to length 6 by padding with spaces
|
904 |
|
|
function translate_string (mode : string) return string is
|
905 |
|
|
variable new_mode : string (1 to 6) := " ";
|
906 |
|
|
begin
|
907 |
|
|
if (mode = "bypass") then
|
908 |
|
|
new_mode := "bypass";
|
909 |
|
|
elsif (mode = "even") then
|
910 |
|
|
new_mode := " even";
|
911 |
|
|
elsif (mode = "odd") then
|
912 |
|
|
new_mode := " odd";
|
913 |
|
|
end if;
|
914 |
|
|
|
915 |
|
|
return new_mode;
|
916 |
|
|
end;
|
917 |
|
|
|
918 |
|
|
function str2int (s : string) return integer is
|
919 |
|
|
variable len : integer := s'length;
|
920 |
|
|
variable newdigit : integer := 0;
|
921 |
|
|
variable sign : integer := 1;
|
922 |
|
|
variable digit : integer := 0;
|
923 |
|
|
begin
|
924 |
|
|
for i in 1 to len loop
|
925 |
|
|
case s(i) is
|
926 |
|
|
when '-' =>
|
927 |
|
|
if i = 1 then
|
928 |
|
|
sign := -1;
|
929 |
|
|
else
|
930 |
|
|
ASSERT FALSE
|
931 |
|
|
REPORT "Illegal Character "& s(i) & "i n string parameter! "
|
932 |
|
|
SEVERITY ERROR;
|
933 |
|
|
end if;
|
934 |
|
|
when '0' =>
|
935 |
|
|
digit := 0;
|
936 |
|
|
when '1' =>
|
937 |
|
|
digit := 1;
|
938 |
|
|
when '2' =>
|
939 |
|
|
digit := 2;
|
940 |
|
|
when '3' =>
|
941 |
|
|
digit := 3;
|
942 |
|
|
when '4' =>
|
943 |
|
|
digit := 4;
|
944 |
|
|
when '5' =>
|
945 |
|
|
digit := 5;
|
946 |
|
|
when '6' =>
|
947 |
|
|
digit := 6;
|
948 |
|
|
when '7' =>
|
949 |
|
|
digit := 7;
|
950 |
|
|
when '8' =>
|
951 |
|
|
digit := 8;
|
952 |
|
|
when '9' =>
|
953 |
|
|
digit := 9;
|
954 |
|
|
when others =>
|
955 |
|
|
ASSERT FALSE
|
956 |
|
|
REPORT "Illegal Character "& s(i) & "in string parameter! "
|
957 |
|
|
SEVERITY ERROR;
|
958 |
|
|
end case;
|
959 |
|
|
newdigit := newdigit * 10 + digit;
|
960 |
|
|
end loop;
|
961 |
|
|
|
962 |
|
|
return (sign*newdigit);
|
963 |
|
|
end;
|
964 |
|
|
|
965 |
|
|
function dqs_str2int (s : string) return integer is
|
966 |
|
|
variable len : integer := s'length;
|
967 |
|
|
variable newdigit : integer := 0;
|
968 |
|
|
variable sign : integer := 1;
|
969 |
|
|
variable digit : integer := 0;
|
970 |
|
|
variable err : boolean := false;
|
971 |
|
|
begin
|
972 |
|
|
for i in 1 to len loop
|
973 |
|
|
case s(i) is
|
974 |
|
|
when '-' =>
|
975 |
|
|
if i = 1 then
|
976 |
|
|
sign := -1;
|
977 |
|
|
else
|
978 |
|
|
ASSERT FALSE
|
979 |
|
|
REPORT "Illegal Character "& s(i) & " in string parameter! "
|
980 |
|
|
SEVERITY ERROR;
|
981 |
|
|
err := true;
|
982 |
|
|
end if;
|
983 |
|
|
when '0' =>
|
984 |
|
|
digit := 0;
|
985 |
|
|
when '1' =>
|
986 |
|
|
digit := 1;
|
987 |
|
|
when '2' =>
|
988 |
|
|
digit := 2;
|
989 |
|
|
when '3' =>
|
990 |
|
|
digit := 3;
|
991 |
|
|
when '4' =>
|
992 |
|
|
digit := 4;
|
993 |
|
|
when '5' =>
|
994 |
|
|
digit := 5;
|
995 |
|
|
when '6' =>
|
996 |
|
|
digit := 6;
|
997 |
|
|
when '7' =>
|
998 |
|
|
digit := 7;
|
999 |
|
|
when '8' =>
|
1000 |
|
|
digit := 8;
|
1001 |
|
|
when '9' =>
|
1002 |
|
|
digit := 9;
|
1003 |
|
|
when others =>
|
1004 |
|
|
-- set error flag
|
1005 |
|
|
err := true;
|
1006 |
|
|
end case;
|
1007 |
|
|
if (err) then
|
1008 |
|
|
err := false;
|
1009 |
|
|
else
|
1010 |
|
|
newdigit := newdigit * 10 + digit;
|
1011 |
|
|
end if;
|
1012 |
|
|
end loop;
|
1013 |
|
|
|
1014 |
|
|
return (sign*newdigit);
|
1015 |
|
|
end;
|
1016 |
|
|
|
1017 |
|
|
end cycloneii_pllpack;
|
1018 |
|
|
|
1019 |
|
|
--
|
1020 |
|
|
--
|
1021 |
|
|
-- DFFE Model
|
1022 |
|
|
--
|
1023 |
|
|
--
|
1024 |
|
|
|
1025 |
|
|
LIBRARY IEEE;
|
1026 |
|
|
use IEEE.STD_LOGIC_1164.all;
|
1027 |
|
|
use IEEE.VITAL_Timing.all;
|
1028 |
|
|
use IEEE.VITAL_Primitives.all;
|
1029 |
|
|
use work.cycloneii_atom_pack.all;
|
1030 |
|
|
|
1031 |
|
|
entity cycloneii_dffe is
|
1032 |
|
|
generic(
|
1033 |
|
|
TimingChecksOn: Boolean := True;
|
1034 |
|
|
XOn: Boolean := DefGlitchXOn;
|
1035 |
|
|
MsgOn: Boolean := DefGlitchMsgOn;
|
1036 |
|
|
MsgOnChecks: Boolean := DefMsgOnChecks;
|
1037 |
|
|
XOnChecks: Boolean := DefXOnChecks;
|
1038 |
|
|
InstancePath: STRING := "*";
|
1039 |
|
|
tpd_PRN_Q_negedge : VitalDelayType01 := DefPropDelay01;
|
1040 |
|
|
tpd_CLRN_Q_negedge : VitalDelayType01 := DefPropDelay01;
|
1041 |
|
|
tpd_CLK_Q_posedge : VitalDelayType01 := DefPropDelay01;
|
1042 |
|
|
tpd_ENA_Q_posedge : VitalDelayType01 := DefPropDelay01;
|
1043 |
|
|
tsetup_D_CLK_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
1044 |
|
|
tsetup_D_CLK_noedge_negedge : VitalDelayType := DefSetupHoldCnst;
|
1045 |
|
|
tsetup_ENA_CLK_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
1046 |
|
|
thold_D_CLK_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
1047 |
|
|
thold_D_CLK_noedge_negedge : VitalDelayType := DefSetupHoldCnst;
|
1048 |
|
|
thold_ENA_CLK_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
1049 |
|
|
tipd_D : VitalDelayType01 := DefPropDelay01;
|
1050 |
|
|
tipd_CLRN : VitalDelayType01 := DefPropDelay01;
|
1051 |
|
|
tipd_PRN : VitalDelayType01 := DefPropDelay01;
|
1052 |
|
|
tipd_CLK : VitalDelayType01 := DefPropDelay01;
|
1053 |
|
|
tipd_ENA : VitalDelayType01 := DefPropDelay01);
|
1054 |
|
|
|
1055 |
|
|
port(
|
1056 |
|
|
Q : out STD_LOGIC := '0';
|
1057 |
|
|
D : in STD_LOGIC;
|
1058 |
|
|
CLRN : in STD_LOGIC;
|
1059 |
|
|
PRN : in STD_LOGIC;
|
1060 |
|
|
CLK : in STD_LOGIC;
|
1061 |
|
|
ENA : in STD_LOGIC);
|
1062 |
|
|
attribute VITAL_LEVEL0 of cycloneii_dffe : entity is TRUE;
|
1063 |
|
|
end cycloneii_dffe;
|
1064 |
|
|
|
1065 |
|
|
-- architecture body --
|
1066 |
|
|
|
1067 |
|
|
architecture behave of cycloneii_dffe is
|
1068 |
|
|
attribute VITAL_LEVEL0 of behave : architecture is TRUE;
|
1069 |
|
|
|
1070 |
|
|
signal D_ipd : STD_ULOGIC := 'U';
|
1071 |
|
|
signal CLRN_ipd : STD_ULOGIC := 'U';
|
1072 |
|
|
signal PRN_ipd : STD_ULOGIC := 'U';
|
1073 |
|
|
signal CLK_ipd : STD_ULOGIC := 'U';
|
1074 |
|
|
signal ENA_ipd : STD_ULOGIC := 'U';
|
1075 |
|
|
|
1076 |
|
|
begin
|
1077 |
|
|
|
1078 |
|
|
---------------------
|
1079 |
|
|
-- INPUT PATH DELAYs
|
1080 |
|
|
---------------------
|
1081 |
|
|
WireDelay : block
|
1082 |
|
|
begin
|
1083 |
|
|
VitalWireDelay (D_ipd, D, tipd_D);
|
1084 |
|
|
VitalWireDelay (CLRN_ipd, CLRN, tipd_CLRN);
|
1085 |
|
|
VitalWireDelay (PRN_ipd, PRN, tipd_PRN);
|
1086 |
|
|
VitalWireDelay (CLK_ipd, CLK, tipd_CLK);
|
1087 |
|
|
VitalWireDelay (ENA_ipd, ENA, tipd_ENA);
|
1088 |
|
|
end block;
|
1089 |
|
|
--------------------
|
1090 |
|
|
-- BEHAVIOR SECTION
|
1091 |
|
|
--------------------
|
1092 |
|
|
VITALBehavior : process (D_ipd, CLRN_ipd, PRN_ipd, CLK_ipd, ENA_ipd)
|
1093 |
|
|
|
1094 |
|
|
-- timing check results
|
1095 |
|
|
VARIABLE Tviol_D_CLK : STD_ULOGIC := '0';
|
1096 |
|
|
VARIABLE Tviol_ENA_CLK : STD_ULOGIC := '0';
|
1097 |
|
|
VARIABLE TimingData_D_CLK : VitalTimingDataType := VitalTimingDataInit;
|
1098 |
|
|
VARIABLE TimingData_ENA_CLK : VitalTimingDataType := VitalTimingDataInit;
|
1099 |
|
|
|
1100 |
|
|
-- functionality results
|
1101 |
|
|
VARIABLE Violation : STD_ULOGIC := '0';
|
1102 |
|
|
VARIABLE PrevData_Q : STD_LOGIC_VECTOR(0 to 7);
|
1103 |
|
|
VARIABLE D_delayed : STD_ULOGIC := 'U';
|
1104 |
|
|
VARIABLE CLK_delayed : STD_ULOGIC := 'U';
|
1105 |
|
|
VARIABLE ENA_delayed : STD_ULOGIC := 'U';
|
1106 |
|
|
VARIABLE Results : STD_LOGIC_VECTOR(1 to 1) := (others => '0');
|
1107 |
|
|
|
1108 |
|
|
-- output glitch detection variables
|
1109 |
|
|
VARIABLE Q_VitalGlitchData : VitalGlitchDataType;
|
1110 |
|
|
|
1111 |
|
|
|
1112 |
|
|
CONSTANT dffe_Q_tab : VitalStateTableType := (
|
1113 |
|
|
( L, L, x, x, x, x, x, x, x, L ),
|
1114 |
|
|
( L, H, L, H, H, x, x, H, x, H ),
|
1115 |
|
|
( L, H, L, H, x, L, x, H, x, H ),
|
1116 |
|
|
( L, H, L, x, H, H, x, H, x, H ),
|
1117 |
|
|
( L, H, H, x, x, x, H, x, x, S ),
|
1118 |
|
|
( L, H, x, x, x, x, L, x, x, H ),
|
1119 |
|
|
( L, H, x, x, x, x, H, L, x, S ),
|
1120 |
|
|
( L, x, L, L, L, x, H, H, x, L ),
|
1121 |
|
|
( L, x, L, L, x, L, H, H, x, L ),
|
1122 |
|
|
( L, x, L, x, L, H, H, H, x, L ),
|
1123 |
|
|
( L, x, x, x, x, x, x, x, x, S ));
|
1124 |
|
|
begin
|
1125 |
|
|
|
1126 |
|
|
------------------------
|
1127 |
|
|
-- Timing Check Section
|
1128 |
|
|
------------------------
|
1129 |
|
|
if (TimingChecksOn) then
|
1130 |
|
|
VitalSetupHoldCheck (
|
1131 |
|
|
Violation => Tviol_D_CLK,
|
1132 |
|
|
TimingData => TimingData_D_CLK,
|
1133 |
|
|
TestSignal => D_ipd,
|
1134 |
|
|
TestSignalName => "D",
|
1135 |
|
|
RefSignal => CLK_ipd,
|
1136 |
|
|
RefSignalName => "CLK",
|
1137 |
|
|
SetupHigh => tsetup_D_CLK_noedge_posedge,
|
1138 |
|
|
SetupLow => tsetup_D_CLK_noedge_posedge,
|
1139 |
|
|
HoldHigh => thold_D_CLK_noedge_posedge,
|
1140 |
|
|
HoldLow => thold_D_CLK_noedge_posedge,
|
1141 |
|
|
CheckEnabled => TO_X01(( (NOT PRN_ipd) ) OR ( (NOT CLRN_ipd) ) OR ( (NOT ENA_ipd) )) /= '1',
|
1142 |
|
|
RefTransition => '/',
|
1143 |
|
|
HeaderMsg => InstancePath & "/DFFE",
|
1144 |
|
|
XOn => XOnChecks,
|
1145 |
|
|
MsgOn => MsgOnChecks );
|
1146 |
|
|
|
1147 |
|
|
VitalSetupHoldCheck (
|
1148 |
|
|
Violation => Tviol_ENA_CLK,
|
1149 |
|
|
TimingData => TimingData_ENA_CLK,
|
1150 |
|
|
TestSignal => ENA_ipd,
|
1151 |
|
|
TestSignalName => "ENA",
|
1152 |
|
|
RefSignal => CLK_ipd,
|
1153 |
|
|
RefSignalName => "CLK",
|
1154 |
|
|
SetupHigh => tsetup_ENA_CLK_noedge_posedge,
|
1155 |
|
|
SetupLow => tsetup_ENA_CLK_noedge_posedge,
|
1156 |
|
|
HoldHigh => thold_ENA_CLK_noedge_posedge,
|
1157 |
|
|
HoldLow => thold_ENA_CLK_noedge_posedge,
|
1158 |
|
|
CheckEnabled => TO_X01(( (NOT PRN_ipd) ) OR ( (NOT CLRN_ipd) ) ) /= '1',
|
1159 |
|
|
RefTransition => '/',
|
1160 |
|
|
HeaderMsg => InstancePath & "/DFFE",
|
1161 |
|
|
XOn => XOnChecks,
|
1162 |
|
|
MsgOn => MsgOnChecks );
|
1163 |
|
|
end if;
|
1164 |
|
|
|
1165 |
|
|
-------------------------
|
1166 |
|
|
-- Functionality Section
|
1167 |
|
|
-------------------------
|
1168 |
|
|
Violation := Tviol_D_CLK or Tviol_ENA_CLK;
|
1169 |
|
|
VitalStateTable(
|
1170 |
|
|
StateTable => dffe_Q_tab,
|
1171 |
|
|
DataIn => (
|
1172 |
|
|
Violation, CLRN_ipd, CLK_delayed, Results(1), D_delayed, ENA_delayed, PRN_ipd, CLK_ipd),
|
1173 |
|
|
Result => Results,
|
1174 |
|
|
NumStates => 1,
|
1175 |
|
|
PreviousDataIn => PrevData_Q);
|
1176 |
|
|
D_delayed := D_ipd;
|
1177 |
|
|
CLK_delayed := CLK_ipd;
|
1178 |
|
|
ENA_delayed := ENA_ipd;
|
1179 |
|
|
|
1180 |
|
|
----------------------
|
1181 |
|
|
-- Path Delay Section
|
1182 |
|
|
----------------------
|
1183 |
|
|
VitalPathDelay01 (
|
1184 |
|
|
OutSignal => Q,
|
1185 |
|
|
OutSignalName => "Q",
|
1186 |
|
|
OutTemp => Results(1),
|
1187 |
|
|
Paths => ( 0 => (PRN_ipd'last_event, tpd_PRN_Q_negedge, TRUE),
|
1188 |
|
|
1 => (CLRN_ipd'last_event, tpd_CLRN_Q_negedge, TRUE),
|
1189 |
|
|
2 => (CLK_ipd'last_event, tpd_CLK_Q_posedge, TRUE)),
|
1190 |
|
|
GlitchData => Q_VitalGlitchData,
|
1191 |
|
|
Mode => DefGlitchMode,
|
1192 |
|
|
XOn => XOn,
|
1193 |
|
|
MsgOn => MsgOn );
|
1194 |
|
|
|
1195 |
|
|
end process;
|
1196 |
|
|
|
1197 |
|
|
end behave;
|
1198 |
|
|
|
1199 |
|
|
--
|
1200 |
|
|
--
|
1201 |
|
|
-- cycloneii_mux21 Model
|
1202 |
|
|
--
|
1203 |
|
|
--
|
1204 |
|
|
|
1205 |
|
|
LIBRARY IEEE;
|
1206 |
|
|
use ieee.std_logic_1164.all;
|
1207 |
|
|
use IEEE.VITAL_Timing.all;
|
1208 |
|
|
use work.cycloneii_atom_pack.all;
|
1209 |
|
|
|
1210 |
|
|
entity cycloneii_mux21 is
|
1211 |
|
|
generic(
|
1212 |
|
|
TimingChecksOn: Boolean := True;
|
1213 |
|
|
MsgOn: Boolean := DefGlitchMsgOn;
|
1214 |
|
|
XOn: Boolean := DefGlitchXOn;
|
1215 |
|
|
InstancePath: STRING := "*";
|
1216 |
|
|
tpd_A_MO : VitalDelayType01 := DefPropDelay01;
|
1217 |
|
|
tpd_B_MO : VitalDelayType01 := DefPropDelay01;
|
1218 |
|
|
tpd_S_MO : VitalDelayType01 := DefPropDelay01;
|
1219 |
|
|
tipd_A : VitalDelayType01 := DefPropDelay01;
|
1220 |
|
|
tipd_B : VitalDelayType01 := DefPropDelay01;
|
1221 |
|
|
tipd_S : VitalDelayType01 := DefPropDelay01);
|
1222 |
|
|
port (
|
1223 |
|
|
A : in std_logic := '0';
|
1224 |
|
|
B : in std_logic := '0';
|
1225 |
|
|
S : in std_logic := '0';
|
1226 |
|
|
MO : out std_logic);
|
1227 |
|
|
attribute VITAL_LEVEL0 of cycloneii_mux21 : entity is TRUE;
|
1228 |
|
|
end cycloneii_mux21;
|
1229 |
|
|
|
1230 |
|
|
architecture AltVITAL of cycloneii_mux21 is
|
1231 |
|
|
attribute VITAL_LEVEL0 of AltVITAL : architecture is TRUE;
|
1232 |
|
|
|
1233 |
|
|
signal A_ipd, B_ipd, S_ipd : std_logic;
|
1234 |
|
|
|
1235 |
|
|
begin
|
1236 |
|
|
|
1237 |
|
|
---------------------
|
1238 |
|
|
-- INPUT PATH DELAYs
|
1239 |
|
|
---------------------
|
1240 |
|
|
WireDelay : block
|
1241 |
|
|
begin
|
1242 |
|
|
VitalWireDelay (A_ipd, A, tipd_A);
|
1243 |
|
|
VitalWireDelay (B_ipd, B, tipd_B);
|
1244 |
|
|
VitalWireDelay (S_ipd, S, tipd_S);
|
1245 |
|
|
end block;
|
1246 |
|
|
|
1247 |
|
|
--------------------
|
1248 |
|
|
-- BEHAVIOR SECTION
|
1249 |
|
|
--------------------
|
1250 |
|
|
VITALBehavior : process (A_ipd, B_ipd, S_ipd)
|
1251 |
|
|
|
1252 |
|
|
-- output glitch detection variables
|
1253 |
|
|
VARIABLE MO_GlitchData : VitalGlitchDataType;
|
1254 |
|
|
|
1255 |
|
|
variable tmp_MO : std_logic;
|
1256 |
|
|
begin
|
1257 |
|
|
-------------------------
|
1258 |
|
|
-- Functionality Section
|
1259 |
|
|
-------------------------
|
1260 |
|
|
if (S_ipd = '1') then
|
1261 |
|
|
tmp_MO := B_ipd;
|
1262 |
|
|
else
|
1263 |
|
|
tmp_MO := A_ipd;
|
1264 |
|
|
end if;
|
1265 |
|
|
|
1266 |
|
|
----------------------
|
1267 |
|
|
-- Path Delay Section
|
1268 |
|
|
----------------------
|
1269 |
|
|
VitalPathDelay01 (
|
1270 |
|
|
OutSignal => MO,
|
1271 |
|
|
OutSignalName => "MO",
|
1272 |
|
|
OutTemp => tmp_MO,
|
1273 |
|
|
Paths => ( 0 => (A_ipd'last_event, tpd_A_MO, TRUE),
|
1274 |
|
|
1 => (B_ipd'last_event, tpd_B_MO, TRUE),
|
1275 |
|
|
2 => (S_ipd'last_event, tpd_S_MO, TRUE)),
|
1276 |
|
|
GlitchData => MO_GlitchData,
|
1277 |
|
|
Mode => DefGlitchMode,
|
1278 |
|
|
XOn => XOn,
|
1279 |
|
|
MsgOn => MsgOn );
|
1280 |
|
|
|
1281 |
|
|
end process;
|
1282 |
|
|
end AltVITAL;
|
1283 |
|
|
|
1284 |
|
|
--
|
1285 |
|
|
--
|
1286 |
|
|
-- cycloneii_mux41 Model
|
1287 |
|
|
--
|
1288 |
|
|
--
|
1289 |
|
|
|
1290 |
|
|
LIBRARY IEEE;
|
1291 |
|
|
use ieee.std_logic_1164.all;
|
1292 |
|
|
use IEEE.VITAL_Timing.all;
|
1293 |
|
|
use work.cycloneii_atom_pack.all;
|
1294 |
|
|
|
1295 |
|
|
entity cycloneii_mux41 is
|
1296 |
|
|
generic(
|
1297 |
|
|
TimingChecksOn: Boolean := True;
|
1298 |
|
|
MsgOn: Boolean := DefGlitchMsgOn;
|
1299 |
|
|
XOn: Boolean := DefGlitchXOn;
|
1300 |
|
|
InstancePath: STRING := "*";
|
1301 |
|
|
tpd_IN0_MO : VitalDelayType01 := DefPropDelay01;
|
1302 |
|
|
tpd_IN1_MO : VitalDelayType01 := DefPropDelay01;
|
1303 |
|
|
tpd_IN2_MO : VitalDelayType01 := DefPropDelay01;
|
1304 |
|
|
tpd_IN3_MO : VitalDelayType01 := DefPropDelay01;
|
1305 |
|
|
tpd_S_MO : VitalDelayArrayType01(1 downto 0) := (OTHERS => DefPropDelay01);
|
1306 |
|
|
tipd_IN0 : VitalDelayType01 := DefPropDelay01;
|
1307 |
|
|
tipd_IN1 : VitalDelayType01 := DefPropDelay01;
|
1308 |
|
|
tipd_IN2 : VitalDelayType01 := DefPropDelay01;
|
1309 |
|
|
tipd_IN3 : VitalDelayType01 := DefPropDelay01;
|
1310 |
|
|
tipd_S : VitalDelayArrayType01(1 downto 0) := (OTHERS => DefPropDelay01)
|
1311 |
|
|
);
|
1312 |
|
|
port (
|
1313 |
|
|
IN0 : in std_logic := '0';
|
1314 |
|
|
IN1 : in std_logic := '0';
|
1315 |
|
|
IN2 : in std_logic := '0';
|
1316 |
|
|
IN3 : in std_logic := '0';
|
1317 |
|
|
S : in std_logic_vector(1 downto 0) := (OTHERS => '0');
|
1318 |
|
|
MO : out std_logic
|
1319 |
|
|
);
|
1320 |
|
|
attribute VITAL_LEVEL0 of cycloneii_mux41 : entity is TRUE;
|
1321 |
|
|
end cycloneii_mux41;
|
1322 |
|
|
|
1323 |
|
|
architecture AltVITAL of cycloneii_mux41 is
|
1324 |
|
|
attribute VITAL_LEVEL0 of AltVITAL : architecture is TRUE;
|
1325 |
|
|
|
1326 |
|
|
signal IN0_ipd, IN1_ipd, IN2_ipd, IN3_ipd : std_logic;
|
1327 |
|
|
signal S_ipd : std_logic_vector(1 downto 0);
|
1328 |
|
|
|
1329 |
|
|
begin
|
1330 |
|
|
|
1331 |
|
|
---------------------
|
1332 |
|
|
-- INPUT PATH DELAYs
|
1333 |
|
|
---------------------
|
1334 |
|
|
WireDelay : block
|
1335 |
|
|
begin
|
1336 |
|
|
VitalWireDelay (IN0_ipd, IN0, tipd_IN0);
|
1337 |
|
|
VitalWireDelay (IN1_ipd, IN1, tipd_IN1);
|
1338 |
|
|
VitalWireDelay (IN2_ipd, IN2, tipd_IN2);
|
1339 |
|
|
VitalWireDelay (IN3_ipd, IN3, tipd_IN3);
|
1340 |
|
|
VitalWireDelay (S_ipd(0), S(0), tipd_S(0));
|
1341 |
|
|
VitalWireDelay (S_ipd(1), S(1), tipd_S(1));
|
1342 |
|
|
end block;
|
1343 |
|
|
|
1344 |
|
|
--------------------
|
1345 |
|
|
-- BEHAVIOR SECTION
|
1346 |
|
|
--------------------
|
1347 |
|
|
VITALBehavior : process (IN0_ipd, IN1_ipd, IN2_ipd, IN3_ipd, S_ipd(0), S_ipd(1))
|
1348 |
|
|
|
1349 |
|
|
-- output glitch detection variables
|
1350 |
|
|
VARIABLE MO_GlitchData : VitalGlitchDataType;
|
1351 |
|
|
|
1352 |
|
|
variable tmp_MO : std_logic;
|
1353 |
|
|
begin
|
1354 |
|
|
-------------------------
|
1355 |
|
|
-- Functionality Section
|
1356 |
|
|
-------------------------
|
1357 |
|
|
if ((S_ipd(1) = '1') AND (S_ipd(0) = '1')) then
|
1358 |
|
|
tmp_MO := IN3_ipd;
|
1359 |
|
|
elsif ((S_ipd(1) = '1') AND (S_ipd(0) = '0')) then
|
1360 |
|
|
tmp_MO := IN2_ipd;
|
1361 |
|
|
elsif ((S_ipd(1) = '0') AND (S_ipd(0) = '1')) then
|
1362 |
|
|
tmp_MO := IN1_ipd;
|
1363 |
|
|
else
|
1364 |
|
|
tmp_MO := IN0_ipd;
|
1365 |
|
|
end if;
|
1366 |
|
|
|
1367 |
|
|
----------------------
|
1368 |
|
|
-- Path Delay Section
|
1369 |
|
|
----------------------
|
1370 |
|
|
VitalPathDelay01 (
|
1371 |
|
|
OutSignal => MO,
|
1372 |
|
|
OutSignalName => "MO",
|
1373 |
|
|
OutTemp => tmp_MO,
|
1374 |
|
|
Paths => ( 0 => (IN0_ipd'last_event, tpd_IN0_MO, TRUE),
|
1375 |
|
|
1 => (IN1_ipd'last_event, tpd_IN1_MO, TRUE),
|
1376 |
|
|
2 => (IN2_ipd'last_event, tpd_IN2_MO, TRUE),
|
1377 |
|
|
3 => (IN3_ipd'last_event, tpd_IN3_MO, TRUE),
|
1378 |
|
|
4 => (S_ipd(0)'last_event, tpd_S_MO(0), TRUE),
|
1379 |
|
|
5 => (S_ipd(1)'last_event, tpd_S_MO(1), TRUE)),
|
1380 |
|
|
GlitchData => MO_GlitchData,
|
1381 |
|
|
Mode => DefGlitchMode,
|
1382 |
|
|
XOn => XOn,
|
1383 |
|
|
MsgOn => MsgOn );
|
1384 |
|
|
|
1385 |
|
|
end process;
|
1386 |
|
|
end AltVITAL;
|
1387 |
|
|
|
1388 |
|
|
--
|
1389 |
|
|
--
|
1390 |
|
|
-- cycloneii_and1 Model
|
1391 |
|
|
--
|
1392 |
|
|
--
|
1393 |
|
|
LIBRARY IEEE;
|
1394 |
|
|
use IEEE.STD_LOGIC_1164.all;
|
1395 |
|
|
use IEEE.VITAL_Timing.all;
|
1396 |
|
|
use work.cycloneii_atom_pack.all;
|
1397 |
|
|
|
1398 |
|
|
-- entity declaration --
|
1399 |
|
|
entity cycloneii_and1 is
|
1400 |
|
|
generic(
|
1401 |
|
|
TimingChecksOn: Boolean := True;
|
1402 |
|
|
MsgOn: Boolean := DefGlitchMsgOn;
|
1403 |
|
|
XOn: Boolean := DefGlitchXOn;
|
1404 |
|
|
InstancePath: STRING := "*";
|
1405 |
|
|
tpd_IN1_Y : VitalDelayType01 := DefPropDelay01;
|
1406 |
|
|
tipd_IN1 : VitalDelayType01 := DefPropDelay01);
|
1407 |
|
|
|
1408 |
|
|
port(
|
1409 |
|
|
Y : out STD_LOGIC;
|
1410 |
|
|
IN1 : in STD_LOGIC);
|
1411 |
|
|
attribute VITAL_LEVEL0 of cycloneii_and1 : entity is TRUE;
|
1412 |
|
|
end cycloneii_and1;
|
1413 |
|
|
|
1414 |
|
|
-- architecture body --
|
1415 |
|
|
|
1416 |
|
|
architecture AltVITAL of cycloneii_and1 is
|
1417 |
|
|
attribute VITAL_LEVEL0 of AltVITAL : architecture is TRUE;
|
1418 |
|
|
|
1419 |
|
|
SIGNAL IN1_ipd : STD_ULOGIC := 'U';
|
1420 |
|
|
|
1421 |
|
|
begin
|
1422 |
|
|
|
1423 |
|
|
---------------------
|
1424 |
|
|
-- INPUT PATH DELAYs
|
1425 |
|
|
---------------------
|
1426 |
|
|
WireDelay : block
|
1427 |
|
|
begin
|
1428 |
|
|
VitalWireDelay (IN1_ipd, IN1, tipd_IN1);
|
1429 |
|
|
end block;
|
1430 |
|
|
--------------------
|
1431 |
|
|
-- BEHAVIOR SECTION
|
1432 |
|
|
--------------------
|
1433 |
|
|
VITALBehavior : process (IN1_ipd)
|
1434 |
|
|
|
1435 |
|
|
|
1436 |
|
|
-- functionality results
|
1437 |
|
|
VARIABLE Results : STD_LOGIC_VECTOR(1 to 1) := (others => 'X');
|
1438 |
|
|
ALIAS Y_zd : STD_ULOGIC is Results(1);
|
1439 |
|
|
|
1440 |
|
|
-- output glitch detection variables
|
1441 |
|
|
VARIABLE Y_GlitchData : VitalGlitchDataType;
|
1442 |
|
|
|
1443 |
|
|
begin
|
1444 |
|
|
|
1445 |
|
|
-------------------------
|
1446 |
|
|
-- Functionality Section
|
1447 |
|
|
-------------------------
|
1448 |
|
|
Y_zd := TO_X01(IN1_ipd);
|
1449 |
|
|
|
1450 |
|
|
----------------------
|
1451 |
|
|
-- Path Delay Section
|
1452 |
|
|
----------------------
|
1453 |
|
|
VitalPathDelay01 (
|
1454 |
|
|
OutSignal => Y,
|
1455 |
|
|
OutSignalName => "Y",
|
1456 |
|
|
OutTemp => Y_zd,
|
1457 |
|
|
Paths => (0 => (IN1_ipd'last_event, tpd_IN1_Y, TRUE)),
|
1458 |
|
|
GlitchData => Y_GlitchData,
|
1459 |
|
|
Mode => DefGlitchMode,
|
1460 |
|
|
XOn => XOn,
|
1461 |
|
|
MsgOn => MsgOn );
|
1462 |
|
|
|
1463 |
|
|
end process;
|
1464 |
|
|
end AltVITAL;
|
1465 |
|
|
----------------------------------------------------------------------------
|
1466 |
|
|
-- Module Name : cycloneii_ram_register
|
1467 |
|
|
-- Description : Register module for RAM inputs/outputs
|
1468 |
|
|
----------------------------------------------------------------------------
|
1469 |
|
|
|
1470 |
|
|
LIBRARY IEEE;
|
1471 |
|
|
USE IEEE.STD_LOGIC_1164.ALL;
|
1472 |
|
|
USE IEEE.VITAL_Timing.all;
|
1473 |
|
|
USE IEEE.VITAL_Primitives.all;
|
1474 |
|
|
USE work.cycloneii_atom_pack.all;
|
1475 |
|
|
|
1476 |
|
|
ENTITY cycloneii_ram_register IS
|
1477 |
|
|
|
1478 |
|
|
GENERIC (
|
1479 |
|
|
width : INTEGER := 1;
|
1480 |
|
|
preset : STD_LOGIC := '0';
|
1481 |
|
|
tipd_d : VitalDelayArrayType01(143 DOWNTO 0) := (OTHERS => DefPropDelay01);
|
1482 |
|
|
tipd_clk : VitalDelayType01 := DefPropDelay01;
|
1483 |
|
|
tipd_ena : VitalDelayType01 := DefPropDelay01;
|
1484 |
|
|
tipd_stall : VitalDelayType01 := DefPropDelay01;
|
1485 |
|
|
tipd_aclr : VitalDelayType01 := DefPropDelay01;
|
1486 |
|
|
tpw_ena_posedge : VitalDelayType := DefPulseWdthCnst;
|
1487 |
|
|
tpd_clk_q_posedge : VitalDelayType01 := DefPropDelay01;
|
1488 |
|
|
tpd_aclr_q_posedge : VitalDelayType01 := DefPropDelay01;
|
1489 |
|
|
tsetup_d_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
1490 |
|
|
thold_d_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
1491 |
|
|
tsetup_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
1492 |
|
|
thold_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
1493 |
|
|
tsetup_stall_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
1494 |
|
|
thold_stall_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
1495 |
|
|
tsetup_aclr_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
1496 |
|
|
thold_aclr_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst
|
1497 |
|
|
);
|
1498 |
|
|
|
1499 |
|
|
PORT (
|
1500 |
|
|
d : IN STD_LOGIC_VECTOR(width - 1 DOWNTO 0);
|
1501 |
|
|
clk : IN STD_LOGIC;
|
1502 |
|
|
ena : IN STD_LOGIC;
|
1503 |
|
|
stall : IN STD_LOGIC;
|
1504 |
|
|
aclr : IN STD_LOGIC;
|
1505 |
|
|
devclrn : IN STD_LOGIC;
|
1506 |
|
|
devpor : IN STD_LOGIC;
|
1507 |
|
|
q : OUT STD_LOGIC_VECTOR(width - 1 DOWNTO 0);
|
1508 |
|
|
aclrout : OUT STD_LOGIC
|
1509 |
|
|
);
|
1510 |
|
|
|
1511 |
|
|
END cycloneii_ram_register;
|
1512 |
|
|
|
1513 |
|
|
ARCHITECTURE reg_arch OF cycloneii_ram_register IS
|
1514 |
|
|
|
1515 |
|
|
SIGNAL d_ipd : STD_LOGIC_VECTOR(width - 1 DOWNTO 0);
|
1516 |
|
|
SIGNAL clk_ipd : STD_LOGIC;
|
1517 |
|
|
SIGNAL ena_ipd : STD_LOGIC;
|
1518 |
|
|
SIGNAL aclr_ipd : STD_LOGIC;
|
1519 |
|
|
SIGNAL stall_ipd : STD_LOGIC;
|
1520 |
|
|
|
1521 |
|
|
BEGIN
|
1522 |
|
|
|
1523 |
|
|
WireDelay : BLOCK
|
1524 |
|
|
BEGIN
|
1525 |
|
|
loopbits : FOR i in d'RANGE GENERATE
|
1526 |
|
|
VitalWireDelay (d_ipd(i), d(i), tipd_d(i));
|
1527 |
|
|
END GENERATE;
|
1528 |
|
|
VitalWireDelay (clk_ipd, clk, tipd_clk);
|
1529 |
|
|
VitalWireDelay (aclr_ipd, aclr, tipd_aclr);
|
1530 |
|
|
VitalWireDelay (ena_ipd, ena, tipd_ena);
|
1531 |
|
|
VitalWireDelay (stall_ipd, stall, tipd_stall);
|
1532 |
|
|
END BLOCK;
|
1533 |
|
|
|
1534 |
|
|
PROCESS (d_ipd,ena_ipd,stall_ipd,clk_ipd,aclr_ipd,devclrn,devpor)
|
1535 |
|
|
VARIABLE Tviol_clk_ena : STD_ULOGIC := '0';
|
1536 |
|
|
VARIABLE Tviol_clk_aclr : STD_ULOGIC := '0';
|
1537 |
|
|
VARIABLE Tviol_data_clk : STD_ULOGIC := '0';
|
1538 |
|
|
VARIABLE TimingData_clk_ena : VitalTimingDataType := VitalTimingDataInit;
|
1539 |
|
|
VARIABLE TimingData_clk_stall : VitalTimingDataType := VitalTimingDataInit;
|
1540 |
|
|
VARIABLE TimingData_clk_aclr : VitalTimingDataType := VitalTimingDataInit;
|
1541 |
|
|
VARIABLE TimingData_data_clk : VitalTimingDataType := VitalTimingDataInit;
|
1542 |
|
|
VARIABLE Tviol_ena : STD_ULOGIC := '0';
|
1543 |
|
|
VARIABLE PeriodData_ena : VitalPeriodDataType := VitalPeriodDataInit;
|
1544 |
|
|
VARIABLE q_VitalGlitchDataArray : VitalGlitchDataArrayType(143 downto 0);
|
1545 |
|
|
VARIABLE CQDelay : TIME := 0 ns;
|
1546 |
|
|
VARIABLE q_reg : STD_LOGIC_VECTOR(width - 1 DOWNTO 0) := (OTHERS => preset);
|
1547 |
|
|
BEGIN
|
1548 |
|
|
|
1549 |
|
|
IF (aclr_ipd = '1' OR devclrn = '0' OR devpor = '0') THEN
|
1550 |
|
|
q_reg := (OTHERS => preset);
|
1551 |
|
|
ELSIF (clk_ipd = '1' AND clk_ipd'EVENT AND ena_ipd = '1' AND stall_ipd = '0') THEN
|
1552 |
|
|
q_reg := d_ipd;
|
1553 |
|
|
END IF;
|
1554 |
|
|
|
1555 |
|
|
-- Timing checks
|
1556 |
|
|
VitalSetupHoldCheck (
|
1557 |
|
|
Violation => Tviol_clk_ena,
|
1558 |
|
|
TimingData => TimingData_clk_ena,
|
1559 |
|
|
TestSignal => ena_ipd,
|
1560 |
|
|
TestSignalName => "ena",
|
1561 |
|
|
RefSignal => clk_ipd,
|
1562 |
|
|
RefSignalName => "clk",
|
1563 |
|
|
SetupHigh => tsetup_ena_clk_noedge_posedge,
|
1564 |
|
|
SetupLow => tsetup_ena_clk_noedge_posedge,
|
1565 |
|
|
HoldHigh => thold_ena_clk_noedge_posedge,
|
1566 |
|
|
HoldLow => thold_ena_clk_noedge_posedge,
|
1567 |
|
|
CheckEnabled => ((aclr_ipd) OR (NOT ena_ipd)) /= '1',
|
1568 |
|
|
RefTransition => '/',
|
1569 |
|
|
HeaderMsg => "/RAM Register VitalSetupHoldCheck",
|
1570 |
|
|
XOn => DefXOnChecks,
|
1571 |
|
|
MsgOn => DefMsgOnChecks );
|
1572 |
|
|
|
1573 |
|
|
VitalSetupHoldCheck (
|
1574 |
|
|
Violation => Tviol_clk_ena,
|
1575 |
|
|
TimingData => TimingData_clk_stall,
|
1576 |
|
|
TestSignal => stall_ipd,
|
1577 |
|
|
TestSignalName => "stall",
|
1578 |
|
|
RefSignal => clk_ipd,
|
1579 |
|
|
RefSignalName => "clk",
|
1580 |
|
|
SetupHigh => tsetup_stall_clk_noedge_posedge,
|
1581 |
|
|
SetupLow => tsetup_stall_clk_noedge_posedge,
|
1582 |
|
|
HoldHigh => thold_stall_clk_noedge_posedge,
|
1583 |
|
|
HoldLow => thold_stall_clk_noedge_posedge,
|
1584 |
|
|
CheckEnabled => ((aclr_ipd) OR (NOT ena_ipd)) /= '1',
|
1585 |
|
|
RefTransition => '/',
|
1586 |
|
|
HeaderMsg => "/RAM Register VitalSetupHoldCheck",
|
1587 |
|
|
XOn => DefXOnChecks,
|
1588 |
|
|
MsgOn => DefMsgOnChecks );
|
1589 |
|
|
|
1590 |
|
|
VitalSetupHoldCheck (
|
1591 |
|
|
Violation => Tviol_clk_aclr,
|
1592 |
|
|
TimingData => TimingData_clk_aclr,
|
1593 |
|
|
TestSignal => aclr_ipd,
|
1594 |
|
|
TestSignalName => "aclr",
|
1595 |
|
|
RefSignal => clk_ipd,
|
1596 |
|
|
RefSignalName => "clk",
|
1597 |
|
|
SetupHigh => tsetup_aclr_clk_noedge_posedge,
|
1598 |
|
|
SetupLow => tsetup_aclr_clk_noedge_posedge,
|
1599 |
|
|
HoldHigh => thold_aclr_clk_noedge_posedge,
|
1600 |
|
|
HoldLow => thold_aclr_clk_noedge_posedge,
|
1601 |
|
|
CheckEnabled => ((aclr_ipd) OR (NOT ena_ipd)) /= '1',
|
1602 |
|
|
RefTransition => '/',
|
1603 |
|
|
HeaderMsg => "/RAM Register VitalSetupHoldCheck",
|
1604 |
|
|
XOn => DefXOnChecks,
|
1605 |
|
|
MsgOn => DefMsgOnChecks );
|
1606 |
|
|
|
1607 |
|
|
VitalSetupHoldCheck (
|
1608 |
|
|
Violation => Tviol_data_clk,
|
1609 |
|
|
TimingData => TimingData_data_clk,
|
1610 |
|
|
TestSignal => d_ipd,
|
1611 |
|
|
TestSignalName => "data",
|
1612 |
|
|
RefSignal => clk_ipd,
|
1613 |
|
|
RefSignalName => "clk",
|
1614 |
|
|
SetupHigh => tsetup_d_clk_noedge_posedge,
|
1615 |
|
|
SetupLow => tsetup_d_clk_noedge_posedge,
|
1616 |
|
|
HoldHigh => thold_d_clk_noedge_posedge,
|
1617 |
|
|
HoldLow => thold_d_clk_noedge_posedge,
|
1618 |
|
|
CheckEnabled => ((aclr_ipd) OR (NOT ena_ipd)) /= '1',
|
1619 |
|
|
RefTransition => '/',
|
1620 |
|
|
HeaderMsg => "/RAM Register VitalSetupHoldCheck",
|
1621 |
|
|
XOn => DefXOnChecks,
|
1622 |
|
|
MsgOn => DefMsgOnChecks );
|
1623 |
|
|
|
1624 |
|
|
VitalPeriodPulseCheck (
|
1625 |
|
|
Violation => Tviol_ena,
|
1626 |
|
|
PeriodData => PeriodData_ena,
|
1627 |
|
|
TestSignal => ena_ipd,
|
1628 |
|
|
TestSignalName => "ena",
|
1629 |
|
|
PulseWidthHigh => tpw_ena_posedge,
|
1630 |
|
|
HeaderMsg => "/RAM Register VitalPeriodPulseCheck",
|
1631 |
|
|
XOn => DefXOnChecks,
|
1632 |
|
|
MsgOn => DefMsgOnChecks );
|
1633 |
|
|
|
1634 |
|
|
-- Path Delay Selection
|
1635 |
|
|
CQDelay := SelectDelay (
|
1636 |
|
|
Paths => (
|
1637 |
|
|
(0 => (clk_ipd'LAST_EVENT,tpd_clk_q_posedge,TRUE),
|
1638 |
|
|
1 => (aclr_ipd'LAST_EVENT,tpd_aclr_q_posedge,TRUE))
|
1639 |
|
|
)
|
1640 |
|
|
);
|
1641 |
|
|
q <= TRANSPORT q_reg AFTER CQDelay;
|
1642 |
|
|
|
1643 |
|
|
END PROCESS;
|
1644 |
|
|
|
1645 |
|
|
aclrout <= aclr_ipd;
|
1646 |
|
|
|
1647 |
|
|
END reg_arch;
|
1648 |
|
|
|
1649 |
|
|
----------------------------------------------------------------------------
|
1650 |
|
|
-- Module Name : cycloneii_ram_pulse_generator
|
1651 |
|
|
-- Description : Generate pulse to initiate memory read/write operations
|
1652 |
|
|
----------------------------------------------------------------------------
|
1653 |
|
|
|
1654 |
|
|
LIBRARY IEEE;
|
1655 |
|
|
USE IEEE.STD_LOGIC_1164.ALL;
|
1656 |
|
|
USE IEEE.VITAL_Timing.all;
|
1657 |
|
|
USE IEEE.VITAL_Primitives.all;
|
1658 |
|
|
USE work.cycloneii_atom_pack.all;
|
1659 |
|
|
|
1660 |
|
|
ENTITY cycloneii_ram_pulse_generator IS
|
1661 |
|
|
GENERIC (
|
1662 |
|
|
tipd_clk : VitalDelayType01 := (0.5 ns,0.5 ns);
|
1663 |
|
|
tipd_ena : VitalDelayType01 := DefPropDelay01;
|
1664 |
|
|
tpd_clk_pulse_posedge : VitalDelayType01 := DefPropDelay01
|
1665 |
|
|
);
|
1666 |
|
|
PORT (
|
1667 |
|
|
clk,ena : IN STD_LOGIC;
|
1668 |
|
|
pulse,cycle : OUT STD_LOGIC
|
1669 |
|
|
);
|
1670 |
|
|
ATTRIBUTE VITAL_Level0 OF cycloneii_ram_pulse_generator:ENTITY IS TRUE;
|
1671 |
|
|
END cycloneii_ram_pulse_generator;
|
1672 |
|
|
|
1673 |
|
|
ARCHITECTURE pgen_arch OF cycloneii_ram_pulse_generator IS
|
1674 |
|
|
SIGNAL clk_ipd,ena_ipd : STD_LOGIC;
|
1675 |
|
|
SIGNAL state : STD_LOGIC;
|
1676 |
|
|
ATTRIBUTE VITAL_Level0 OF pgen_arch:ARCHITECTURE IS TRUE;
|
1677 |
|
|
BEGIN
|
1678 |
|
|
|
1679 |
|
|
WireDelay : BLOCK
|
1680 |
|
|
BEGIN
|
1681 |
|
|
VitalWireDelay (clk_ipd, clk, tipd_clk);
|
1682 |
|
|
VitalWireDelay (ena_ipd, ena, tipd_ena);
|
1683 |
|
|
END BLOCK;
|
1684 |
|
|
|
1685 |
|
|
PROCESS (clk_ipd,state)
|
1686 |
|
|
BEGIN
|
1687 |
|
|
IF (state = '1' AND state'EVENT) THEN
|
1688 |
|
|
state <= '0';
|
1689 |
|
|
ELSIF (clk_ipd = '1' AND clk_ipd'EVENT AND ena_ipd = '1') THEN
|
1690 |
|
|
state <= '1';
|
1691 |
|
|
END IF;
|
1692 |
|
|
END PROCESS;
|
1693 |
|
|
|
1694 |
|
|
PathDelay : PROCESS
|
1695 |
|
|
VARIABLE pulse_VitalGlitchData : VitalGlitchDataType;
|
1696 |
|
|
BEGIN
|
1697 |
|
|
WAIT UNTIL state'EVENT;
|
1698 |
|
|
VitalPathDelay01 (
|
1699 |
|
|
OutSignal => pulse,
|
1700 |
|
|
OutSignalName => "pulse",
|
1701 |
|
|
OutTemp => state,
|
1702 |
|
|
Paths => (0 => (clk_ipd'LAST_EVENT,tpd_clk_pulse_posedge,TRUE)),
|
1703 |
|
|
GlitchData => pulse_VitalGlitchData,
|
1704 |
|
|
Mode => DefGlitchMode,
|
1705 |
|
|
XOn => DefXOnChecks,
|
1706 |
|
|
MsgOn => DefMsgOnChecks
|
1707 |
|
|
);
|
1708 |
|
|
END PROCESS;
|
1709 |
|
|
|
1710 |
|
|
cycle <= clk_ipd;
|
1711 |
|
|
|
1712 |
|
|
END pgen_arch;
|
1713 |
|
|
|
1714 |
|
|
LIBRARY IEEE;
|
1715 |
|
|
USE IEEE.STD_LOGIC_1164.ALL;
|
1716 |
|
|
USE IEEE.VITAL_Timing.all;
|
1717 |
|
|
USE IEEE.VITAL_Primitives.all;
|
1718 |
|
|
USE work.cycloneii_atom_pack.all;
|
1719 |
|
|
USE work.cycloneii_ram_register;
|
1720 |
|
|
USE work.cycloneii_ram_pulse_generator;
|
1721 |
|
|
|
1722 |
|
|
ENTITY cycloneii_ram_block IS
|
1723 |
|
|
GENERIC (
|
1724 |
|
|
-- -------- GLOBAL PARAMETERS ---------
|
1725 |
|
|
operation_mode : STRING := "single_port";
|
1726 |
|
|
mixed_port_feed_through_mode : STRING := "dont_care";
|
1727 |
|
|
ram_block_type : STRING := "auto";
|
1728 |
|
|
logical_ram_name : STRING := "ram_name";
|
1729 |
|
|
init_file : STRING := "init_file.hex";
|
1730 |
|
|
init_file_layout : STRING := "none";
|
1731 |
|
|
data_interleave_width_in_bits : INTEGER := 1;
|
1732 |
|
|
data_interleave_offset_in_bits : INTEGER := 1;
|
1733 |
|
|
port_a_logical_ram_depth : INTEGER := 0;
|
1734 |
|
|
port_a_logical_ram_width : INTEGER := 0;
|
1735 |
|
|
port_a_first_address : INTEGER := 0;
|
1736 |
|
|
port_a_last_address : INTEGER := 0;
|
1737 |
|
|
port_a_first_bit_number : INTEGER := 0;
|
1738 |
|
|
port_a_data_in_clear : STRING := "none";
|
1739 |
|
|
port_a_address_clear : STRING := "none";
|
1740 |
|
|
port_a_write_enable_clear : STRING := "none";
|
1741 |
|
|
port_a_data_out_clear : STRING := "none";
|
1742 |
|
|
port_a_byte_enable_clear : STRING := "none";
|
1743 |
|
|
port_a_data_in_clock : STRING := "clock0";
|
1744 |
|
|
port_a_address_clock : STRING := "clock0";
|
1745 |
|
|
port_a_write_enable_clock : STRING := "clock0";
|
1746 |
|
|
port_a_byte_enable_clock : STRING := "clock0";
|
1747 |
|
|
port_a_data_out_clock : STRING := "none";
|
1748 |
|
|
port_a_data_width : INTEGER := 1;
|
1749 |
|
|
port_a_address_width : INTEGER := 1;
|
1750 |
|
|
port_a_byte_enable_mask_width : INTEGER := 1;
|
1751 |
|
|
port_b_logical_ram_depth : INTEGER := 0;
|
1752 |
|
|
port_b_logical_ram_width : INTEGER := 0;
|
1753 |
|
|
port_b_first_address : INTEGER := 0;
|
1754 |
|
|
port_b_last_address : INTEGER := 0;
|
1755 |
|
|
port_b_first_bit_number : INTEGER := 0;
|
1756 |
|
|
port_b_data_in_clear : STRING := "none";
|
1757 |
|
|
port_b_address_clear : STRING := "none";
|
1758 |
|
|
port_b_read_enable_write_enable_clear: STRING := "none";
|
1759 |
|
|
port_b_byte_enable_clear : STRING := "none";
|
1760 |
|
|
port_b_data_out_clear : STRING := "none";
|
1761 |
|
|
port_b_data_in_clock : STRING := "clock1";
|
1762 |
|
|
port_b_address_clock : STRING := "clock1";
|
1763 |
|
|
port_b_read_enable_write_enable_clock: STRING := "clock1";
|
1764 |
|
|
port_b_byte_enable_clock : STRING := "clock1";
|
1765 |
|
|
port_b_data_out_clock : STRING := "none";
|
1766 |
|
|
port_b_data_width : INTEGER := 1;
|
1767 |
|
|
port_b_address_width : INTEGER := 1;
|
1768 |
|
|
port_b_byte_enable_mask_width : INTEGER := 1;
|
1769 |
|
|
|
1770 |
|
|
power_up_uninitialized : STRING := "false";
|
1771 |
|
|
port_b_disable_ce_on_output_registers : STRING := "off";
|
1772 |
|
|
port_b_disable_ce_on_input_registers : STRING := "off";
|
1773 |
|
|
port_b_byte_size : INTEGER := 0;
|
1774 |
|
|
port_a_disable_ce_on_output_registers : STRING := "off";
|
1775 |
|
|
port_a_disable_ce_on_input_registers : STRING := "off";
|
1776 |
|
|
port_a_byte_size : INTEGER := 0;
|
1777 |
|
|
safe_write : STRING := "err_on_2clk";
|
1778 |
|
|
init_file_restructured : STRING := "unused";
|
1779 |
|
|
lpm_type : string := "cycloneii_ram_block";
|
1780 |
|
|
lpm_hint : string := "true";
|
1781 |
|
|
mem_init0 : BIT_VECTOR := X"0";
|
1782 |
|
|
mem_init1 : BIT_VECTOR := X"0";
|
1783 |
|
|
connectivity_checking : string := "off"
|
1784 |
|
|
);
|
1785 |
|
|
-- -------- PORT DECLARATIONS ---------
|
1786 |
|
|
PORT (
|
1787 |
|
|
portadatain : IN STD_LOGIC_VECTOR(port_a_data_width - 1 DOWNTO 0) := (OTHERS => '0');
|
1788 |
|
|
portaaddr : IN STD_LOGIC_VECTOR(port_a_address_width - 1 DOWNTO 0) := (OTHERS => '0');
|
1789 |
|
|
portawe : IN STD_LOGIC := '0';
|
1790 |
|
|
portbdatain : IN STD_LOGIC_VECTOR(port_b_data_width - 1 DOWNTO 0) := (OTHERS => '0');
|
1791 |
|
|
portbaddr : IN STD_LOGIC_VECTOR(port_b_address_width - 1 DOWNTO 0) := (OTHERS => '0');
|
1792 |
|
|
portbrewe : IN STD_LOGIC := '0';
|
1793 |
|
|
clk0 : IN STD_LOGIC := '0';
|
1794 |
|
|
clk1 : IN STD_LOGIC := '0';
|
1795 |
|
|
ena0 : IN STD_LOGIC := '1';
|
1796 |
|
|
ena1 : IN STD_LOGIC := '1';
|
1797 |
|
|
clr0 : IN STD_LOGIC := '0';
|
1798 |
|
|
clr1 : IN STD_LOGIC := '0';
|
1799 |
|
|
portabyteenamasks : IN STD_LOGIC_VECTOR(port_a_byte_enable_mask_width - 1 DOWNTO 0) := (OTHERS => '1');
|
1800 |
|
|
portbbyteenamasks : IN STD_LOGIC_VECTOR(port_b_byte_enable_mask_width - 1 DOWNTO 0) := (OTHERS => '1');
|
1801 |
|
|
devclrn : IN STD_LOGIC := '1';
|
1802 |
|
|
devpor : IN STD_LOGIC := '1';
|
1803 |
|
|
portaaddrstall : IN STD_LOGIC := '0';
|
1804 |
|
|
portbaddrstall : IN STD_LOGIC := '0';
|
1805 |
|
|
portadataout : OUT STD_LOGIC_VECTOR(port_a_data_width - 1 DOWNTO 0);
|
1806 |
|
|
portbdataout : OUT STD_LOGIC_VECTOR(port_b_data_width - 1 DOWNTO 0)
|
1807 |
|
|
);
|
1808 |
|
|
|
1809 |
|
|
END cycloneii_ram_block;
|
1810 |
|
|
|
1811 |
|
|
ARCHITECTURE block_arch OF cycloneii_ram_block IS
|
1812 |
|
|
|
1813 |
|
|
COMPONENT cycloneii_ram_pulse_generator
|
1814 |
|
|
PORT (
|
1815 |
|
|
clk : IN STD_LOGIC;
|
1816 |
|
|
ena : IN STD_LOGIC;
|
1817 |
|
|
pulse : OUT STD_LOGIC;
|
1818 |
|
|
cycle : OUT STD_LOGIC
|
1819 |
|
|
);
|
1820 |
|
|
END COMPONENT;
|
1821 |
|
|
|
1822 |
|
|
COMPONENT cycloneii_ram_register
|
1823 |
|
|
GENERIC (
|
1824 |
|
|
preset : STD_LOGIC := '0';
|
1825 |
|
|
width : integer := 1
|
1826 |
|
|
);
|
1827 |
|
|
PORT (
|
1828 |
|
|
d : IN STD_LOGIC_VECTOR(width - 1 DOWNTO 0);
|
1829 |
|
|
clk : IN STD_LOGIC;
|
1830 |
|
|
aclr : IN STD_LOGIC;
|
1831 |
|
|
devclrn : IN STD_LOGIC;
|
1832 |
|
|
devpor : IN STD_LOGIC;
|
1833 |
|
|
ena : IN STD_LOGIC;
|
1834 |
|
|
stall : IN STD_LOGIC;
|
1835 |
|
|
q : OUT STD_LOGIC_VECTOR(width - 1 DOWNTO 0);
|
1836 |
|
|
aclrout : OUT STD_LOGIC
|
1837 |
|
|
);
|
1838 |
|
|
END COMPONENT;
|
1839 |
|
|
|
1840 |
|
|
FUNCTION cond (condition : BOOLEAN;CONSTANT a,b : INTEGER) RETURN INTEGER IS
|
1841 |
|
|
VARIABLE c: INTEGER;
|
1842 |
|
|
BEGIN
|
1843 |
|
|
IF (condition) THEN c := a; ELSE c := b; END IF;
|
1844 |
|
|
RETURN c;
|
1845 |
|
|
END;
|
1846 |
|
|
|
1847 |
|
|
SUBTYPE port_type IS BOOLEAN;
|
1848 |
|
|
|
1849 |
|
|
CONSTANT primary : port_type := TRUE;
|
1850 |
|
|
CONSTANT secondary : port_type := FALSE;
|
1851 |
|
|
|
1852 |
|
|
CONSTANT primary_port_is_a : BOOLEAN := (port_b_data_width <= port_a_data_width);
|
1853 |
|
|
CONSTANT primary_port_is_b : BOOLEAN := NOT primary_port_is_a;
|
1854 |
|
|
|
1855 |
|
|
CONSTANT mode_is_rom : BOOLEAN := (operation_mode = "rom");
|
1856 |
|
|
CONSTANT mode_is_sp : BOOLEAN := (operation_mode = "single_port");
|
1857 |
|
|
CONSTANT mode_is_dp : BOOLEAN := (operation_mode = "dual_port");
|
1858 |
|
|
CONSTANT mode_is_bdp : BOOLEAN := (operation_mode = "bidir_dual_port");
|
1859 |
|
|
|
1860 |
|
|
CONSTANT wired_mode : BOOLEAN := (port_a_address_width = port_b_address_width) AND (port_a_address_width = 1)
|
1861 |
|
|
AND (port_a_data_width /= port_b_data_width);
|
1862 |
|
|
CONSTANT num_cols : INTEGER := cond(mode_is_rom OR mode_is_sp,1,
|
1863 |
|
|
cond(wired_mode,2,2 ** (ABS(port_b_address_width - port_a_address_width))));
|
1864 |
|
|
CONSTANT data_width : INTEGER := cond(primary_port_is_a,port_a_data_width,port_b_data_width);
|
1865 |
|
|
CONSTANT data_unit_width : INTEGER := cond(mode_is_rom OR mode_is_sp OR primary_port_is_b,port_a_data_width,port_b_data_width);
|
1866 |
|
|
|
1867 |
|
|
CONSTANT address_unit_width : INTEGER := cond(mode_is_rom OR mode_is_sp OR primary_port_is_a,port_a_address_width,port_b_address_width);
|
1868 |
|
|
CONSTANT address_width : INTEGER := cond(mode_is_rom OR mode_is_sp OR primary_port_is_b,port_a_address_width,port_b_address_width);
|
1869 |
|
|
|
1870 |
|
|
CONSTANT byte_size_a : INTEGER := port_a_data_width / port_a_byte_enable_mask_width;
|
1871 |
|
|
CONSTANT byte_size_b : INTEGER := port_b_data_width / port_b_byte_enable_mask_width;
|
1872 |
|
|
|
1873 |
|
|
CONSTANT out_a_is_reg : BOOLEAN := (port_a_data_out_clock /= "none" AND port_a_data_out_clock /= "UNUSED");
|
1874 |
|
|
CONSTANT out_b_is_reg : BOOLEAN := (port_b_data_out_clock /= "none" AND port_b_data_out_clock /= "UNUSED");
|
1875 |
|
|
|
1876 |
|
|
CONSTANT bytes_a_disabled : STD_LOGIC_VECTOR(port_a_byte_enable_mask_width - 1 DOWNTO 0) := (OTHERS => '0');
|
1877 |
|
|
CONSTANT bytes_b_disabled : STD_LOGIC_VECTOR(port_b_byte_enable_mask_width - 1 DOWNTO 0) := (OTHERS => '0');
|
1878 |
|
|
|
1879 |
|
|
CONSTANT ram_type : BOOLEAN := (ram_block_type = "M-RAM" OR ram_block_type = "m-ram" OR ram_block_type = "MegaRAM" OR
|
1880 |
|
|
(ram_block_type = "auto" AND mixed_port_feed_through_mode = "dont_care" AND port_b_read_enable_write_enable_clock = "clock0"));
|
1881 |
|
|
|
1882 |
|
|
TYPE bool_to_std_logic_map IS ARRAY(TRUE DOWNTO FALSE) OF STD_LOGIC;
|
1883 |
|
|
CONSTANT bool_to_std_logic : bool_to_std_logic_map := ('1','0');
|
1884 |
|
|
|
1885 |
|
|
|
1886 |
|
|
|
1887 |
|
|
-- -------- internal signals ---------
|
1888 |
|
|
-- clock / clock enable
|
1889 |
|
|
SIGNAL clk_a_in,clk_b_in : STD_LOGIC;
|
1890 |
|
|
SIGNAL clk_a_byteena,clk_b_byteena : STD_LOGIC;
|
1891 |
|
|
SIGNAL clk_a_out,clk_b_out : STD_LOGIC;
|
1892 |
|
|
SIGNAL clkena_a_out,clkena_b_out : STD_LOGIC;
|
1893 |
|
|
SIGNAL write_cycle_a,write_cycle_b : STD_LOGIC;
|
1894 |
|
|
|
1895 |
|
|
|
1896 |
|
|
|
1897 |
|
|
SUBTYPE one_bit_bus_type IS STD_LOGIC_VECTOR(0 DOWNTO 0);
|
1898 |
|
|
|
1899 |
|
|
-- asynch clear
|
1900 |
|
|
TYPE clear_mode_type IS ARRAY (port_type'HIGH DOWNTO port_type'LOW) OF BOOLEAN;
|
1901 |
|
|
TYPE clear_vec_type IS ARRAY (port_type'HIGH DOWNTO port_type'LOW) OF STD_LOGIC;
|
1902 |
|
|
SIGNAL datain_a_clr,datain_b_clr : STD_LOGIC;
|
1903 |
|
|
SIGNAL dataout_a_clr,dataout_b_clr : STD_LOGIC;
|
1904 |
|
|
|
1905 |
|
|
|
1906 |
|
|
SIGNAL addr_a_clr,addr_b_clr : STD_LOGIC;
|
1907 |
|
|
SIGNAL byteena_a_clr,byteena_b_clr : STD_LOGIC;
|
1908 |
|
|
SIGNAL we_a_clr,rewe_b_clr : STD_LOGIC;
|
1909 |
|
|
SIGNAL datain_a_clr_in,datain_b_clr_in : STD_LOGIC;
|
1910 |
|
|
SIGNAL addr_a_clr_in,addr_b_clr_in : STD_LOGIC;
|
1911 |
|
|
SIGNAL byteena_a_clr_in,byteena_b_clr_in : STD_LOGIC;
|
1912 |
|
|
SIGNAL we_a_clr_in,rewe_b_clr_in : STD_LOGIC;
|
1913 |
|
|
SIGNAL mem_invalidate,mem_invalidate_loc,read_latch_invalidate : clear_mode_type;
|
1914 |
|
|
SIGNAL clear_asserted_during_write : clear_vec_type;
|
1915 |
|
|
|
1916 |
|
|
|
1917 |
|
|
-- port A registers
|
1918 |
|
|
SIGNAL we_a_reg : STD_LOGIC;
|
1919 |
|
|
SIGNAL we_a_reg_in,we_a_reg_out : one_bit_bus_type;
|
1920 |
|
|
SIGNAL addr_a_reg : STD_LOGIC_VECTOR(port_a_address_width - 1 DOWNTO 0);
|
1921 |
|
|
SIGNAL datain_a_reg : STD_LOGIC_VECTOR(port_a_data_width - 1 DOWNTO 0);
|
1922 |
|
|
SIGNAL dataout_a_reg : STD_LOGIC_VECTOR(port_a_data_width - 1 DOWNTO 0);
|
1923 |
|
|
SIGNAL dataout_a : STD_LOGIC_VECTOR(port_a_data_width - 1 DOWNTO 0);
|
1924 |
|
|
SIGNAL byteena_a_reg : STD_LOGIC_VECTOR(port_a_byte_enable_mask_width- 1 DOWNTO 0);
|
1925 |
|
|
-- port B registers
|
1926 |
|
|
SIGNAL rewe_b_reg : STD_LOGIC;
|
1927 |
|
|
SIGNAL rewe_b_reg_in,rewe_b_reg_out : one_bit_bus_type;
|
1928 |
|
|
SIGNAL addr_b_reg : STD_LOGIC_VECTOR(port_b_address_width - 1 DOWNTO 0);
|
1929 |
|
|
SIGNAL datain_b_reg : STD_LOGIC_VECTOR(port_b_data_width - 1 DOWNTO 0);
|
1930 |
|
|
SIGNAL dataout_b_reg : STD_LOGIC_VECTOR(port_b_data_width - 1 DOWNTO 0);
|
1931 |
|
|
SIGNAL dataout_b : STD_LOGIC_VECTOR(port_b_data_width - 1 DOWNTO 0);
|
1932 |
|
|
SIGNAL byteena_b_reg : STD_LOGIC_VECTOR(port_b_byte_enable_mask_width- 1 DOWNTO 0);
|
1933 |
|
|
-- pulses
|
1934 |
|
|
TYPE pulse_vec IS ARRAY (port_type'HIGH DOWNTO port_type'LOW) OF STD_LOGIC;
|
1935 |
|
|
SIGNAL write_pulse,read_pulse,read_pulse_feedthru : pulse_vec;
|
1936 |
|
|
SIGNAL wpgen_a_clk,wpgen_a_clkena,wpgen_b_clk,wpgen_b_clkena : STD_LOGIC;
|
1937 |
|
|
SIGNAL rpgen_a_clkena,rpgen_b_clkena : STD_LOGIC;
|
1938 |
|
|
SIGNAL ftpgen_a_clkena,ftpgen_b_clkena : STD_LOGIC;
|
1939 |
|
|
-- registered address
|
1940 |
|
|
SIGNAL addr_prime_reg,addr_sec_reg : INTEGER;
|
1941 |
|
|
-- input/output
|
1942 |
|
|
SIGNAL datain_prime_reg,dataout_prime : STD_LOGIC_VECTOR(data_width - 1 DOWNTO 0);
|
1943 |
|
|
SIGNAL datain_sec_reg,dataout_sec : STD_LOGIC_VECTOR(data_unit_width - 1 DOWNTO 0);
|
1944 |
|
|
-- overlapping location write
|
1945 |
|
|
SIGNAL dual_write : BOOLEAN;
|
1946 |
|
|
-- memory core
|
1947 |
|
|
SUBTYPE mem_word_type IS STD_LOGIC_VECTOR (data_width - 1 DOWNTO 0);
|
1948 |
|
|
SUBTYPE mem_col_type IS STD_LOGIC_VECTOR (data_unit_width - 1 DOWNTO 0);
|
1949 |
|
|
TYPE mem_row_type IS ARRAY (num_cols - 1 DOWNTO 0) OF mem_col_type;
|
1950 |
|
|
TYPE mem_type IS ARRAY ((2 ** address_unit_width) - 1 DOWNTO 0) OF mem_row_type;
|
1951 |
|
|
SIGNAL mem : mem_type;
|
1952 |
|
|
SIGNAL init_mem : BOOLEAN := FALSE;
|
1953 |
|
|
CONSTANT mem_x : mem_type := (OTHERS => (OTHERS => (OTHERS => 'X')));
|
1954 |
|
|
CONSTANT row_x : mem_row_type := (OTHERS => (OTHERS => 'X'));
|
1955 |
|
|
CONSTANT col_x : mem_col_type := (OTHERS => 'X');
|
1956 |
|
|
SIGNAL mem_data : mem_row_type;
|
1957 |
|
|
SIGNAL old_mem_data : mem_row_type;
|
1958 |
|
|
SIGNAL mem_unit_data : mem_col_type;
|
1959 |
|
|
|
1960 |
|
|
-- latches
|
1961 |
|
|
TYPE read_latch_rec IS RECORD
|
1962 |
|
|
prime : mem_row_type;
|
1963 |
|
|
sec : mem_col_type;
|
1964 |
|
|
END RECORD;
|
1965 |
|
|
SIGNAL read_latch : read_latch_rec;
|
1966 |
|
|
-- (row,column) coordinates
|
1967 |
|
|
SIGNAL row_sec,col_sec : INTEGER;
|
1968 |
|
|
-- byte enable
|
1969 |
|
|
TYPE mask_type IS (normal,inverse);
|
1970 |
|
|
TYPE mask_prime_type IS ARRAY(mask_type'HIGH DOWNTO mask_type'LOW) OF mem_word_type;
|
1971 |
|
|
TYPE mask_sec_type IS ARRAY(mask_type'HIGH DOWNTO mask_type'LOW) OF mem_col_type;
|
1972 |
|
|
TYPE mask_rec IS RECORD
|
1973 |
|
|
prime : mask_prime_type;
|
1974 |
|
|
sec : mask_sec_type;
|
1975 |
|
|
END RECORD;
|
1976 |
|
|
SIGNAL mask_vector : mask_rec;
|
1977 |
|
|
SIGNAL mask_vector_common : mem_col_type;
|
1978 |
|
|
|
1979 |
|
|
FUNCTION get_mask(
|
1980 |
|
|
b_ena : IN STD_LOGIC_VECTOR;
|
1981 |
|
|
mode : port_type;
|
1982 |
|
|
CONSTANT b_ena_width ,byte_size: INTEGER
|
1983 |
|
|
) RETURN mask_rec IS
|
1984 |
|
|
|
1985 |
|
|
VARIABLE l : INTEGER;
|
1986 |
|
|
VARIABLE mask : mask_rec := (
|
1987 |
|
|
(normal => (OTHERS => '0'),inverse => (OTHERS => 'X')),
|
1988 |
|
|
(normal => (OTHERS => '0'),inverse => (OTHERS => 'X'))
|
1989 |
|
|
);
|
1990 |
|
|
BEGIN
|
1991 |
|
|
FOR l in 0 TO b_ena_width - 1 LOOP
|
1992 |
|
|
IF (b_ena(l) = '0') THEN
|
1993 |
|
|
IF (mode = primary) THEN
|
1994 |
|
|
mask.prime(normal) ((l+1)*byte_size - 1 DOWNTO l*byte_size) := (OTHERS => 'X');
|
1995 |
|
|
mask.prime(inverse)((l+1)*byte_size - 1 DOWNTO l*byte_size) := (OTHERS => '0');
|
1996 |
|
|
ELSE
|
1997 |
|
|
mask.sec(normal) ((l+1)*byte_size - 1 DOWNTO l*byte_size) := (OTHERS => 'X');
|
1998 |
|
|
mask.sec(inverse)((l+1)*byte_size - 1 DOWNTO l*byte_size) := (OTHERS => '0');
|
1999 |
|
|
END IF;
|
2000 |
|
|
ELSIF (b_ena(l) = 'X' OR b_ena(l) = 'U') THEN
|
2001 |
|
|
IF (mode = primary) THEN
|
2002 |
|
|
mask.prime(normal) ((l+1)*byte_size - 1 DOWNTO l*byte_size) := (OTHERS => 'X');
|
2003 |
|
|
ELSE
|
2004 |
|
|
mask.sec(normal) ((l+1)*byte_size - 1 DOWNTO l*byte_size) := (OTHERS => 'X');
|
2005 |
|
|
END IF;
|
2006 |
|
|
END IF;
|
2007 |
|
|
END LOOP;
|
2008 |
|
|
RETURN mask;
|
2009 |
|
|
END get_mask;
|
2010 |
|
|
-- port active for read/write
|
2011 |
|
|
SIGNAL active_a_in_vec,active_b_in_vec,active_a_out,active_b_out : one_bit_bus_type;
|
2012 |
|
|
SIGNAL active_a_in,active_b_in : STD_LOGIC;
|
2013 |
|
|
SIGNAL active_a,active_b : BOOLEAN;
|
2014 |
|
|
SIGNAL active_write_a : BOOLEAN;
|
2015 |
|
|
SIGNAL active_write_b : BOOLEAN;
|
2016 |
|
|
SIGNAL wire_vcc : STD_LOGIC := '1';
|
2017 |
|
|
SIGNAL wire_gnd : STD_LOGIC := '0';
|
2018 |
|
|
|
2019 |
|
|
|
2020 |
|
|
|
2021 |
|
|
|
2022 |
|
|
|
2023 |
|
|
|
2024 |
|
|
BEGIN
|
2025 |
|
|
-- memory initialization
|
2026 |
|
|
init_mem <= TRUE;
|
2027 |
|
|
|
2028 |
|
|
-- -------- core logic ---------------
|
2029 |
|
|
clk_a_in <= clk0;
|
2030 |
|
|
|
2031 |
|
|
clk_a_byteena <= '0' WHEN (port_a_byte_enable_clock = "none" OR port_a_byte_enable_clock = "UNUSED") ELSE clk_a_in;
|
2032 |
|
|
clk_a_out <= '0' WHEN (port_a_data_out_clock = "none" OR port_a_data_out_clock = "UNUSED") ELSE
|
2033 |
|
|
clk0 WHEN (port_a_data_out_clock = "clock0") ELSE clk1;
|
2034 |
|
|
|
2035 |
|
|
clk_b_in <= clk0 WHEN (port_b_read_enable_write_enable_clock = "clock0") ELSE clk1;
|
2036 |
|
|
clk_b_byteena <= '0' WHEN (port_b_byte_enable_clock = "none" OR port_b_byte_enable_clock = "UNUSED") ELSE
|
2037 |
|
|
clk0 WHEN (port_b_byte_enable_clock = "clock0") ELSE clk1;
|
2038 |
|
|
clk_b_out <= '0' WHEN (port_b_data_out_clock = "none" OR port_b_data_out_clock = "UNUSED") ELSE
|
2039 |
|
|
clk0 WHEN (port_b_data_out_clock = "clock0") ELSE clk1;
|
2040 |
|
|
|
2041 |
|
|
addr_a_clr_in <= '0' WHEN (port_a_address_clear = "none" OR port_a_address_clear = "UNUSED") ELSE clr0;
|
2042 |
|
|
addr_b_clr_in <= '0' WHEN (port_b_address_clear = "none" OR port_b_address_clear = "UNUSED") ELSE
|
2043 |
|
|
clr0 WHEN (port_b_address_clear = "clear0") ELSE clr1;
|
2044 |
|
|
|
2045 |
|
|
datain_a_clr_in <= '0' WHEN (port_a_data_in_clear = "none" OR port_a_data_in_clear = "UNUSED") ELSE clr0;
|
2046 |
|
|
datain_b_clr_in <= '0' WHEN (port_b_data_in_clear = "none" OR port_b_data_in_clear = "UNUSED") ELSE
|
2047 |
|
|
clr0 WHEN (port_b_data_in_clear = "clear0") ELSE clr1;
|
2048 |
|
|
|
2049 |
|
|
dataout_a_clr <= '0' WHEN (port_a_data_out_clear = "none" OR port_a_data_out_clear = "UNUSED") ELSE
|
2050 |
|
|
clr0 WHEN (port_a_data_out_clear = "clear0") ELSE clr1;
|
2051 |
|
|
|
2052 |
|
|
dataout_b_clr <= '0' WHEN (port_b_data_out_clear = "none" OR port_b_data_out_clear = "UNUSED") ELSE
|
2053 |
|
|
clr0 WHEN (port_b_data_out_clear = "clear0") ELSE clr1;
|
2054 |
|
|
|
2055 |
|
|
byteena_a_clr_in <= '0' WHEN (port_a_byte_enable_clear = "none" OR port_a_byte_enable_clear = "UNUSED") ELSE clr0;
|
2056 |
|
|
byteena_b_clr_in <= '0' WHEN (port_b_byte_enable_clear = "none" OR port_b_byte_enable_clear = "UNUSED") ELSE
|
2057 |
|
|
clr0 WHEN (port_b_byte_enable_clear = "clear0") ELSE clr1;
|
2058 |
|
|
we_a_clr_in <= '0' WHEN (port_a_write_enable_clear = "none" OR port_a_write_enable_clear = "UNUSED") ELSE clr0;
|
2059 |
|
|
rewe_b_clr_in <= '0' WHEN (port_b_read_enable_write_enable_clear = "none" OR port_b_read_enable_write_enable_clear = "UNUSED") ELSE
|
2060 |
|
|
clr0 WHEN (port_b_read_enable_write_enable_clear = "clear0") ELSE clr1;
|
2061 |
|
|
|
2062 |
|
|
active_a_in <= '1' WHEN (port_a_disable_ce_on_input_registers = "on") ELSE ena0;
|
2063 |
|
|
|
2064 |
|
|
|
2065 |
|
|
active_b_in <= '1' WHEN (port_b_disable_ce_on_input_registers = "on") ELSE
|
2066 |
|
|
ena0 WHEN (port_b_read_enable_write_enable_clock = "clock0") ELSE ena1;
|
2067 |
|
|
|
2068 |
|
|
-- Store clock enable value for SEAB/MEAB
|
2069 |
|
|
-- A port active
|
2070 |
|
|
active_a_in_vec(0) <= active_a_in;
|
2071 |
|
|
active_port_a : cycloneii_ram_register
|
2072 |
|
|
GENERIC MAP ( width => 1 )
|
2073 |
|
|
PORT MAP (
|
2074 |
|
|
d => active_a_in_vec,
|
2075 |
|
|
clk => clk_a_in,
|
2076 |
|
|
aclr => wire_gnd,
|
2077 |
|
|
devclrn => wire_vcc,devpor => wire_vcc,
|
2078 |
|
|
ena => wire_vcc,
|
2079 |
|
|
stall => wire_gnd,
|
2080 |
|
|
q => active_a_out
|
2081 |
|
|
);
|
2082 |
|
|
active_a <= (active_a_out(0) = '1');
|
2083 |
|
|
active_write_a <= active_a AND (byteena_a_reg /= bytes_a_disabled);
|
2084 |
|
|
|
2085 |
|
|
-- B port active
|
2086 |
|
|
active_b_in_vec(0) <= active_b_in;
|
2087 |
|
|
active_port_b : cycloneii_ram_register
|
2088 |
|
|
GENERIC MAP ( width => 1 )
|
2089 |
|
|
PORT MAP (
|
2090 |
|
|
d => active_b_in_vec,
|
2091 |
|
|
clk => clk_b_in,
|
2092 |
|
|
aclr => wire_gnd,
|
2093 |
|
|
devclrn => wire_vcc,devpor => wire_vcc,
|
2094 |
|
|
stall => wire_gnd,
|
2095 |
|
|
ena => wire_vcc,
|
2096 |
|
|
q => active_b_out
|
2097 |
|
|
);
|
2098 |
|
|
active_b <= (active_b_out(0) = '1');
|
2099 |
|
|
active_write_b <= active_b AND (byteena_b_reg /= bytes_b_disabled);
|
2100 |
|
|
|
2101 |
|
|
|
2102 |
|
|
|
2103 |
|
|
|
2104 |
|
|
|
2105 |
|
|
-- ------ A input registers
|
2106 |
|
|
-- write enable
|
2107 |
|
|
we_a_reg_in(0) <= '0' WHEN mode_is_rom ELSE portawe;
|
2108 |
|
|
we_a_register : cycloneii_ram_register
|
2109 |
|
|
GENERIC MAP ( width => 1 )
|
2110 |
|
|
PORT MAP (
|
2111 |
|
|
d => we_a_reg_in,
|
2112 |
|
|
clk => clk_a_in,
|
2113 |
|
|
aclr => we_a_clr_in,
|
2114 |
|
|
devclrn => devclrn,
|
2115 |
|
|
devpor => devpor,
|
2116 |
|
|
stall => wire_gnd,
|
2117 |
|
|
ena => active_a_in,
|
2118 |
|
|
q => we_a_reg_out,
|
2119 |
|
|
aclrout => we_a_clr
|
2120 |
|
|
);
|
2121 |
|
|
we_a_reg <= we_a_reg_out(0);
|
2122 |
|
|
|
2123 |
|
|
-- address
|
2124 |
|
|
addr_a_register : cycloneii_ram_register
|
2125 |
|
|
GENERIC MAP ( width => port_a_address_width )
|
2126 |
|
|
PORT MAP (
|
2127 |
|
|
d => portaaddr,
|
2128 |
|
|
clk => clk_a_in,
|
2129 |
|
|
aclr => addr_a_clr_in,
|
2130 |
|
|
devclrn => devclrn,
|
2131 |
|
|
devpor => devpor,
|
2132 |
|
|
stall => portaaddrstall,
|
2133 |
|
|
ena => active_a_in,
|
2134 |
|
|
q => addr_a_reg,
|
2135 |
|
|
aclrout => addr_a_clr
|
2136 |
|
|
);
|
2137 |
|
|
-- data
|
2138 |
|
|
datain_a_register : cycloneii_ram_register
|
2139 |
|
|
GENERIC MAP ( width => port_a_data_width )
|
2140 |
|
|
PORT MAP (
|
2141 |
|
|
d => portadatain,
|
2142 |
|
|
clk => clk_a_in,
|
2143 |
|
|
aclr => datain_a_clr_in,
|
2144 |
|
|
devclrn => devclrn,
|
2145 |
|
|
devpor => devpor,
|
2146 |
|
|
stall => wire_gnd,
|
2147 |
|
|
ena => active_a_in,
|
2148 |
|
|
q => datain_a_reg,
|
2149 |
|
|
aclrout => datain_a_clr
|
2150 |
|
|
);
|
2151 |
|
|
-- byte enable
|
2152 |
|
|
byteena_a_register : cycloneii_ram_register
|
2153 |
|
|
GENERIC MAP (
|
2154 |
|
|
width => port_a_byte_enable_mask_width,
|
2155 |
|
|
preset => '1'
|
2156 |
|
|
)
|
2157 |
|
|
PORT MAP (
|
2158 |
|
|
d => portabyteenamasks,
|
2159 |
|
|
clk => clk_a_byteena,
|
2160 |
|
|
aclr => byteena_a_clr_in,
|
2161 |
|
|
devclrn => devclrn,
|
2162 |
|
|
devpor => devpor,
|
2163 |
|
|
stall => wire_gnd,
|
2164 |
|
|
ena => active_a_in,
|
2165 |
|
|
q => byteena_a_reg,
|
2166 |
|
|
aclrout => byteena_a_clr
|
2167 |
|
|
);
|
2168 |
|
|
-- ------ B input registers
|
2169 |
|
|
-- read/write enable
|
2170 |
|
|
rewe_b_reg_in(0) <= portbrewe;
|
2171 |
|
|
rewe_b_register : cycloneii_ram_register
|
2172 |
|
|
GENERIC MAP (
|
2173 |
|
|
width => 1,
|
2174 |
|
|
preset => bool_to_std_logic(mode_is_dp)
|
2175 |
|
|
)
|
2176 |
|
|
PORT MAP (
|
2177 |
|
|
d => rewe_b_reg_in,
|
2178 |
|
|
clk => clk_b_in,
|
2179 |
|
|
aclr => rewe_b_clr_in,
|
2180 |
|
|
devclrn => devclrn,
|
2181 |
|
|
devpor => devpor,
|
2182 |
|
|
stall => wire_gnd,
|
2183 |
|
|
ena => active_b_in,
|
2184 |
|
|
q => rewe_b_reg_out,
|
2185 |
|
|
aclrout => rewe_b_clr
|
2186 |
|
|
);
|
2187 |
|
|
rewe_b_reg <= rewe_b_reg_out(0);
|
2188 |
|
|
|
2189 |
|
|
|
2190 |
|
|
|
2191 |
|
|
-- address
|
2192 |
|
|
addr_b_register : cycloneii_ram_register
|
2193 |
|
|
GENERIC MAP ( width => port_b_address_width )
|
2194 |
|
|
PORT MAP (
|
2195 |
|
|
d => portbaddr,
|
2196 |
|
|
clk => clk_b_in,
|
2197 |
|
|
aclr => addr_b_clr_in,
|
2198 |
|
|
devclrn => devclrn,
|
2199 |
|
|
devpor => devpor,
|
2200 |
|
|
stall => portbaddrstall,
|
2201 |
|
|
ena => active_b_in,
|
2202 |
|
|
q => addr_b_reg,
|
2203 |
|
|
aclrout => addr_b_clr
|
2204 |
|
|
);
|
2205 |
|
|
-- data
|
2206 |
|
|
datain_b_register : cycloneii_ram_register
|
2207 |
|
|
GENERIC MAP ( width => port_b_data_width )
|
2208 |
|
|
PORT MAP (
|
2209 |
|
|
d => portbdatain,
|
2210 |
|
|
clk => clk_b_in,
|
2211 |
|
|
aclr => datain_b_clr_in,
|
2212 |
|
|
devclrn => devclrn,
|
2213 |
|
|
devpor => devpor,
|
2214 |
|
|
stall => wire_gnd,
|
2215 |
|
|
ena => active_b_in,
|
2216 |
|
|
q => datain_b_reg,
|
2217 |
|
|
aclrout => datain_b_clr
|
2218 |
|
|
);
|
2219 |
|
|
-- byte enable
|
2220 |
|
|
byteena_b_register : cycloneii_ram_register
|
2221 |
|
|
GENERIC MAP (
|
2222 |
|
|
width => port_b_byte_enable_mask_width,
|
2223 |
|
|
preset => '1'
|
2224 |
|
|
)
|
2225 |
|
|
PORT MAP (
|
2226 |
|
|
d => portbbyteenamasks,
|
2227 |
|
|
clk => clk_b_byteena,
|
2228 |
|
|
aclr => byteena_b_clr_in,
|
2229 |
|
|
devclrn => devclrn,
|
2230 |
|
|
devpor => devpor,
|
2231 |
|
|
stall => wire_gnd,
|
2232 |
|
|
ena => active_b_in,
|
2233 |
|
|
q => byteena_b_reg,
|
2234 |
|
|
aclrout => byteena_b_clr
|
2235 |
|
|
);
|
2236 |
|
|
|
2237 |
|
|
datain_prime_reg <= datain_a_reg WHEN primary_port_is_a ELSE datain_b_reg;
|
2238 |
|
|
addr_prime_reg <= alt_conv_integer(addr_a_reg) WHEN primary_port_is_a ELSE alt_conv_integer(addr_b_reg);
|
2239 |
|
|
|
2240 |
|
|
datain_sec_reg <= (OTHERS => 'U') WHEN (mode_is_rom OR mode_is_sp) ELSE
|
2241 |
|
|
datain_b_reg WHEN primary_port_is_a ELSE datain_a_reg;
|
2242 |
|
|
addr_sec_reg <= alt_conv_integer(addr_b_reg) WHEN primary_port_is_a ELSE alt_conv_integer(addr_a_reg);
|
2243 |
|
|
|
2244 |
|
|
-- Write pulse generation
|
2245 |
|
|
wpgen_a_clk <= clk_a_in WHEN ram_type ELSE (NOT clk_a_in);
|
2246 |
|
|
wpgen_a_clkena <= '1' WHEN (active_write_a AND (we_a_reg = '1')) ELSE '0';
|
2247 |
|
|
|
2248 |
|
|
wpgen_a : cycloneii_ram_pulse_generator
|
2249 |
|
|
PORT MAP (
|
2250 |
|
|
clk => wpgen_a_clk,
|
2251 |
|
|
ena => wpgen_a_clkena,
|
2252 |
|
|
pulse => write_pulse(primary_port_is_a),
|
2253 |
|
|
cycle => write_cycle_a
|
2254 |
|
|
);
|
2255 |
|
|
|
2256 |
|
|
wpgen_b_clk <= clk_b_in WHEN ram_type ELSE (NOT clk_b_in);
|
2257 |
|
|
wpgen_b_clkena <= '1' WHEN (active_write_b AND mode_is_bdp AND (rewe_b_reg = '1')) ELSE '0';
|
2258 |
|
|
|
2259 |
|
|
|
2260 |
|
|
wpgen_b : cycloneii_ram_pulse_generator
|
2261 |
|
|
PORT MAP (
|
2262 |
|
|
clk => wpgen_b_clk,
|
2263 |
|
|
ena => wpgen_b_clkena,
|
2264 |
|
|
pulse => write_pulse(primary_port_is_b),
|
2265 |
|
|
cycle => write_cycle_b
|
2266 |
|
|
);
|
2267 |
|
|
|
2268 |
|
|
-- Read pulse generation
|
2269 |
|
|
rpgen_a_clkena <= '1' WHEN (active_a AND (we_a_reg = '0')) ELSE '0';
|
2270 |
|
|
|
2271 |
|
|
rpgen_a : cycloneii_ram_pulse_generator
|
2272 |
|
|
PORT MAP (
|
2273 |
|
|
clk => clk_a_in,
|
2274 |
|
|
ena => rpgen_a_clkena,
|
2275 |
|
|
pulse => read_pulse(primary_port_is_a)
|
2276 |
|
|
);
|
2277 |
|
|
rpgen_b_clkena <= '1' WHEN (active_b AND mode_is_dp AND (rewe_b_reg = '1')) OR
|
2278 |
|
|
(active_b AND mode_is_bdp AND (rewe_b_reg = '0'))
|
2279 |
|
|
ELSE '0';
|
2280 |
|
|
rpgen_b : cycloneii_ram_pulse_generator
|
2281 |
|
|
PORT MAP (
|
2282 |
|
|
clk => clk_b_in,
|
2283 |
|
|
ena => rpgen_b_clkena,
|
2284 |
|
|
pulse => read_pulse(primary_port_is_b)
|
2285 |
|
|
);
|
2286 |
|
|
|
2287 |
|
|
|
2288 |
|
|
|
2289 |
|
|
-- Create internal masks for byte enable processing
|
2290 |
|
|
mask_create : PROCESS (byteena_a_reg,byteena_b_reg)
|
2291 |
|
|
VARIABLE mask : mask_rec;
|
2292 |
|
|
BEGIN
|
2293 |
|
|
IF (byteena_a_reg'EVENT) THEN
|
2294 |
|
|
mask := get_mask(byteena_a_reg,primary_port_is_a,port_a_byte_enable_mask_width,byte_size_a);
|
2295 |
|
|
IF (primary_port_is_a) THEN
|
2296 |
|
|
mask_vector.prime <= mask.prime;
|
2297 |
|
|
ELSE
|
2298 |
|
|
mask_vector.sec <= mask.sec;
|
2299 |
|
|
END IF;
|
2300 |
|
|
END IF;
|
2301 |
|
|
IF (byteena_b_reg'EVENT) THEN
|
2302 |
|
|
mask := get_mask(byteena_b_reg,primary_port_is_b,port_b_byte_enable_mask_width,byte_size_b);
|
2303 |
|
|
IF (primary_port_is_b) THEN
|
2304 |
|
|
mask_vector.prime <= mask.prime;
|
2305 |
|
|
ELSE
|
2306 |
|
|
mask_vector.sec <= mask.sec;
|
2307 |
|
|
END IF;
|
2308 |
|
|
END IF;
|
2309 |
|
|
END PROCESS mask_create;
|
2310 |
|
|
|
2311 |
|
|
-- (row,col) coordinates
|
2312 |
|
|
row_sec <= addr_sec_reg / num_cols;
|
2313 |
|
|
col_sec <= addr_sec_reg mod num_cols;
|
2314 |
|
|
|
2315 |
|
|
|
2316 |
|
|
|
2317 |
|
|
|
2318 |
|
|
mem_rw : PROCESS (init_mem,
|
2319 |
|
|
write_pulse,read_pulse,read_pulse_feedthru,
|
2320 |
|
|
mem_invalidate,mem_invalidate_loc,read_latch_invalidate)
|
2321 |
|
|
-- mem init
|
2322 |
|
|
TYPE rw_type IS ARRAY (port_type'HIGH DOWNTO port_type'LOW) OF BOOLEAN;
|
2323 |
|
|
VARIABLE addr_range_init,row,col,index : INTEGER;
|
2324 |
|
|
VARIABLE mem_init_std : STD_LOGIC_VECTOR((port_a_last_address - port_a_first_address + 1)*port_a_data_width - 1 DOWNTO 0);
|
2325 |
|
|
VARIABLE mem_init : bit_vector(mem_init1'length + mem_init0'length - 1 DOWNTO 0);
|
2326 |
|
|
|
2327 |
|
|
VARIABLE mem_val : mem_type;
|
2328 |
|
|
-- read/write
|
2329 |
|
|
VARIABLE mem_data_p : mem_row_type;
|
2330 |
|
|
VARIABLE old_mem_data_p : mem_row_type;
|
2331 |
|
|
VARIABLE row_prime,col_prime : INTEGER;
|
2332 |
|
|
VARIABLE access_same_location : BOOLEAN;
|
2333 |
|
|
VARIABLE read_during_write : rw_type;
|
2334 |
|
|
BEGIN
|
2335 |
|
|
|
2336 |
|
|
read_during_write := (FALSE,FALSE);
|
2337 |
|
|
-- Memory initialization
|
2338 |
|
|
IF (init_mem'EVENT) THEN
|
2339 |
|
|
-- Initialize output latches to 0
|
2340 |
|
|
IF (primary_port_is_a) THEN
|
2341 |
|
|
dataout_prime <= (OTHERS => '0');
|
2342 |
|
|
IF (mode_is_dp OR mode_is_bdp) THEN dataout_sec <= (OTHERS => '0'); END IF;
|
2343 |
|
|
ELSE
|
2344 |
|
|
dataout_sec <= (OTHERS => '0');
|
2345 |
|
|
IF (mode_is_dp OR mode_is_bdp) THEN dataout_prime <= (OTHERS => '0'); END IF;
|
2346 |
|
|
END IF;
|
2347 |
|
|
mem_val := (OTHERS => (OTHERS => (OTHERS => '0')));
|
2348 |
|
|
IF (primary_port_is_a) THEN
|
2349 |
|
|
addr_range_init := port_a_last_address - port_a_first_address + 1;
|
2350 |
|
|
ELSE
|
2351 |
|
|
addr_range_init := port_b_last_address - port_b_first_address + 1;
|
2352 |
|
|
END IF;
|
2353 |
|
|
IF (init_file_layout = "port_a" OR init_file_layout = "port_b") THEN
|
2354 |
|
|
mem_init := mem_init1 & mem_init0;
|
2355 |
|
|
mem_init_std := to_stdlogicvector(mem_init) ((port_a_last_address - port_a_first_address + 1)*port_a_data_width - 1 DOWNTO 0);
|
2356 |
|
|
FOR row IN 0 TO addr_range_init - 1 LOOP
|
2357 |
|
|
FOR col IN 0 to num_cols - 1 LOOP
|
2358 |
|
|
index := row * data_width;
|
2359 |
|
|
mem_val(row)(col) := mem_init_std(index + (col+1)*data_unit_width -1 DOWNTO
|
2360 |
|
|
index + col*data_unit_width);
|
2361 |
|
|
END LOOP;
|
2362 |
|
|
END LOOP;
|
2363 |
|
|
END IF;
|
2364 |
|
|
mem <= mem_val;
|
2365 |
|
|
END IF;
|
2366 |
|
|
access_same_location := (mode_is_dp OR mode_is_bdp) AND (addr_prime_reg = row_sec);
|
2367 |
|
|
|
2368 |
|
|
-- Write stage 1 : X to buffer
|
2369 |
|
|
-- Write stage 2 : actual data to memory
|
2370 |
|
|
IF (write_pulse(primary)'EVENT) THEN
|
2371 |
|
|
IF (write_pulse(primary) = '1') THEN
|
2372 |
|
|
old_mem_data_p := mem(addr_prime_reg);
|
2373 |
|
|
mem_data_p := mem(addr_prime_reg);
|
2374 |
|
|
FOR i IN 0 TO num_cols - 1 LOOP
|
2375 |
|
|
mem_data_p(i) := mem_data_p(i) XOR
|
2376 |
|
|
mask_vector.prime(inverse)((i + 1)*data_unit_width - 1 DOWNTO i*data_unit_width);
|
2377 |
|
|
END LOOP;
|
2378 |
|
|
read_during_write(secondary) := (access_same_location AND read_pulse(secondary)'EVENT AND read_pulse(secondary) = '1');
|
2379 |
|
|
IF (read_during_write(secondary)) THEN
|
2380 |
|
|
read_latch.sec <= old_mem_data_p(col_sec);
|
2381 |
|
|
ELSE
|
2382 |
|
|
mem_data <= mem_data_p;
|
2383 |
|
|
END IF;
|
2384 |
|
|
ELSIF (clear_asserted_during_write(primary) /= '1') THEN
|
2385 |
|
|
FOR i IN 0 TO data_width - 1 LOOP
|
2386 |
|
|
IF (mask_vector.prime(normal)(i) = '0') THEN
|
2387 |
|
|
mem(addr_prime_reg)(i / data_unit_width)(i mod data_unit_width) <= datain_prime_reg(i);
|
2388 |
|
|
ELSIF (mask_vector.prime(inverse)(i) = 'X') THEN
|
2389 |
|
|
mem(addr_prime_reg)(i / data_unit_width)(i mod data_unit_width) <= 'X';
|
2390 |
|
|
END IF;
|
2391 |
|
|
END LOOP;
|
2392 |
|
|
END IF;
|
2393 |
|
|
END IF;
|
2394 |
|
|
|
2395 |
|
|
IF (write_pulse(secondary)'EVENT) THEN
|
2396 |
|
|
IF (write_pulse(secondary) = '1') THEN
|
2397 |
|
|
read_during_write(primary) := (access_same_location AND read_pulse(primary)'EVENT AND read_pulse(primary) = '1');
|
2398 |
|
|
IF (read_during_write(primary)) THEN
|
2399 |
|
|
read_latch.prime <= mem(addr_prime_reg);
|
2400 |
|
|
read_latch.prime(col_sec) <= mem(row_sec)(col_sec) XOR mask_vector.sec(inverse);
|
2401 |
|
|
ELSE
|
2402 |
|
|
mem_unit_data <= mem(row_sec)(col_sec) XOR mask_vector.sec(inverse);
|
2403 |
|
|
END IF;
|
2404 |
|
|
|
2405 |
|
|
IF (access_same_location AND write_pulse(primary)'EVENT AND write_pulse(primary) = '1') THEN
|
2406 |
|
|
mask_vector_common <=
|
2407 |
|
|
mask_vector.prime(inverse)(((col_sec + 1)* data_unit_width - 1) DOWNTO col_sec*data_unit_width) AND
|
2408 |
|
|
mask_vector.sec(inverse);
|
2409 |
|
|
dual_write <= TRUE;
|
2410 |
|
|
END IF;
|
2411 |
|
|
ELSIF (clear_asserted_during_write(secondary) /= '1') THEN
|
2412 |
|
|
FOR i IN 0 TO data_unit_width - 1 LOOP
|
2413 |
|
|
IF (mask_vector.sec(normal)(i) = '0') THEN
|
2414 |
|
|
mem(row_sec)(col_sec)(i) <= datain_sec_reg(i);
|
2415 |
|
|
ELSIF (mask_vector.sec(inverse)(i) = 'X') THEN
|
2416 |
|
|
mem(row_sec)(col_sec)(i) <= 'X';
|
2417 |
|
|
END IF;
|
2418 |
|
|
END LOOP;
|
2419 |
|
|
END IF;
|
2420 |
|
|
END IF;
|
2421 |
|
|
-- Simultaneous write
|
2422 |
|
|
IF (dual_write AND write_pulse = "00") THEN
|
2423 |
|
|
mem(row_sec)(col_sec) <= mem(row_sec)(col_sec) XOR mask_vector_common;
|
2424 |
|
|
dual_write <= FALSE;
|
2425 |
|
|
END IF;
|
2426 |
|
|
-- Read stage 1 : read data
|
2427 |
|
|
-- Read stage 2 : send data to output
|
2428 |
|
|
IF ((NOT read_during_write(primary)) AND read_pulse(primary)'EVENT) THEN
|
2429 |
|
|
IF (read_pulse(primary) = '1') THEN
|
2430 |
|
|
read_latch.prime <= mem(addr_prime_reg);
|
2431 |
|
|
IF (access_same_location AND write_pulse(secondary) = '1') THEN
|
2432 |
|
|
read_latch.prime(col_sec) <= mem_unit_data;
|
2433 |
|
|
END IF;
|
2434 |
|
|
ELSE
|
2435 |
|
|
FOR i IN 0 TO data_width - 1 LOOP
|
2436 |
|
|
row_prime := i / data_unit_width; col_prime := i mod data_unit_width;
|
2437 |
|
|
dataout_prime(i) <= read_latch.prime(row_prime)(col_prime);
|
2438 |
|
|
END LOOP;
|
2439 |
|
|
END IF;
|
2440 |
|
|
END IF;
|
2441 |
|
|
|
2442 |
|
|
IF ((NOT read_during_write(secondary)) AND read_pulse(secondary)'EVENT) THEN
|
2443 |
|
|
IF (read_pulse(secondary) = '1') THEN
|
2444 |
|
|
IF (access_same_location AND write_pulse(primary) = '1') THEN
|
2445 |
|
|
read_latch.sec <= mem_data(col_sec);
|
2446 |
|
|
ELSE
|
2447 |
|
|
read_latch.sec <= mem(row_sec)(col_sec);
|
2448 |
|
|
END IF;
|
2449 |
|
|
ELSE
|
2450 |
|
|
dataout_sec <= read_latch.sec;
|
2451 |
|
|
END IF;
|
2452 |
|
|
END IF;
|
2453 |
|
|
-- Same port feed thru
|
2454 |
|
|
IF (read_pulse_feedthru(primary)'EVENT AND read_pulse_feedthru(primary) = '0') THEN
|
2455 |
|
|
dataout_prime <= datain_prime_reg XOR mask_vector.prime(normal);
|
2456 |
|
|
END IF;
|
2457 |
|
|
|
2458 |
|
|
IF (read_pulse_feedthru(secondary)'EVENT AND read_pulse_feedthru(secondary) = '0') THEN
|
2459 |
|
|
dataout_sec <= datain_sec_reg XOR mask_vector.sec(normal);
|
2460 |
|
|
END IF;
|
2461 |
|
|
-- Async clear
|
2462 |
|
|
IF (mem_invalidate'EVENT) THEN
|
2463 |
|
|
IF (mem_invalidate(primary) = TRUE OR mem_invalidate(secondary) = TRUE) THEN
|
2464 |
|
|
mem <= mem_x;
|
2465 |
|
|
END IF;
|
2466 |
|
|
END IF;
|
2467 |
|
|
IF (mem_invalidate_loc'EVENT) THEN
|
2468 |
|
|
IF (mem_invalidate_loc(primary)) THEN mem(addr_prime_reg) <= row_x; END IF;
|
2469 |
|
|
IF (mem_invalidate_loc(secondary)) THEN mem(row_sec)(col_sec) <= col_x; END IF;
|
2470 |
|
|
END IF;
|
2471 |
|
|
IF (read_latch_invalidate'EVENT) THEN
|
2472 |
|
|
IF (read_latch_invalidate(primary)) THEN
|
2473 |
|
|
read_latch.prime <= row_x;
|
2474 |
|
|
END IF;
|
2475 |
|
|
IF (read_latch_invalidate(secondary)) THEN
|
2476 |
|
|
read_latch.sec <= col_x;
|
2477 |
|
|
END IF;
|
2478 |
|
|
END IF;
|
2479 |
|
|
|
2480 |
|
|
END PROCESS mem_rw;
|
2481 |
|
|
|
2482 |
|
|
-- Same port feed through
|
2483 |
|
|
ftpgen_a_clkena <= '1' WHEN (active_a AND (NOT mode_is_dp) AND (we_a_reg = '1')) ELSE '0';
|
2484 |
|
|
ftpgen_a : cycloneii_ram_pulse_generator
|
2485 |
|
|
PORT MAP (
|
2486 |
|
|
clk => clk_a_in,
|
2487 |
|
|
ena => ftpgen_a_clkena,
|
2488 |
|
|
pulse => read_pulse_feedthru(primary_port_is_a)
|
2489 |
|
|
);
|
2490 |
|
|
ftpgen_b_clkena <= '1' WHEN (active_b AND mode_is_bdp AND (rewe_b_reg = '1')) ELSE '0';
|
2491 |
|
|
|
2492 |
|
|
ftpgen_b : cycloneii_ram_pulse_generator
|
2493 |
|
|
PORT MAP (
|
2494 |
|
|
clk => clk_b_in,
|
2495 |
|
|
ena => ftpgen_b_clkena,
|
2496 |
|
|
pulse => read_pulse_feedthru(primary_port_is_b)
|
2497 |
|
|
);
|
2498 |
|
|
|
2499 |
|
|
|
2500 |
|
|
|
2501 |
|
|
|
2502 |
|
|
|
2503 |
|
|
-- Asynch clear events
|
2504 |
|
|
clear_a : PROCESS(addr_a_clr,we_a_clr,datain_a_clr)
|
2505 |
|
|
BEGIN
|
2506 |
|
|
IF (addr_a_clr'EVENT AND addr_a_clr = '1') THEN
|
2507 |
|
|
clear_asserted_during_write(primary_port_is_a) <= write_pulse(primary_port_is_a);
|
2508 |
|
|
IF (active_write_a AND (write_cycle_a = '1') AND (we_a_reg = '1')) THEN
|
2509 |
|
|
mem_invalidate(primary_port_is_a) <= TRUE,FALSE AFTER 0.5 ns;
|
2510 |
|
|
ELSIF (active_a AND we_a_reg = '0') THEN
|
2511 |
|
|
read_latch_invalidate(primary_port_is_a) <= TRUE,FALSE AFTER 0.5 ns;
|
2512 |
|
|
END IF;
|
2513 |
|
|
END IF;
|
2514 |
|
|
IF ((we_a_clr'EVENT AND we_a_clr = '1') OR (datain_a_clr'EVENT AND datain_a_clr = '1')) THEN
|
2515 |
|
|
clear_asserted_during_write(primary_port_is_a) <= write_pulse(primary_port_is_a);
|
2516 |
|
|
IF (active_write_a AND (write_cycle_a = '1') AND (we_a_reg = '1')) THEN
|
2517 |
|
|
mem_invalidate_loc(primary_port_is_a) <= TRUE,FALSE AFTER 0.5 ns;
|
2518 |
|
|
read_latch_invalidate(primary_port_is_a) <= TRUE,FALSE AFTER 0.5 ns;
|
2519 |
|
|
END IF;
|
2520 |
|
|
END IF;
|
2521 |
|
|
END PROCESS clear_a;
|
2522 |
|
|
|
2523 |
|
|
clear_b : PROCESS(addr_b_clr,rewe_b_clr,datain_b_clr)
|
2524 |
|
|
BEGIN
|
2525 |
|
|
IF (addr_b_clr'EVENT AND addr_b_clr = '1') THEN
|
2526 |
|
|
clear_asserted_during_write(primary_port_is_b) <= write_pulse(primary_port_is_b);
|
2527 |
|
|
IF (mode_is_bdp AND active_write_b AND (write_cycle_b = '1') AND (rewe_b_reg = '1')) THEN
|
2528 |
|
|
mem_invalidate(primary_port_is_b) <= TRUE,FALSE AFTER 0.5 ns;
|
2529 |
|
|
ELSIF (active_b AND ((mode_is_dp AND rewe_b_reg = '1') OR (mode_is_bdp AND rewe_b_reg = '0'))) THEN
|
2530 |
|
|
read_latch_invalidate(primary_port_is_b) <= TRUE,FALSE AFTER 0.5 ns;
|
2531 |
|
|
END IF;
|
2532 |
|
|
END IF;
|
2533 |
|
|
IF ((rewe_b_clr'EVENT AND rewe_b_clr = '1') OR (datain_b_clr'EVENT AND datain_b_clr = '1')) THEN
|
2534 |
|
|
clear_asserted_during_write(primary_port_is_b) <= write_pulse(primary_port_is_b);
|
2535 |
|
|
IF (mode_is_bdp AND active_write_b AND (write_cycle_b = '1') AND (rewe_b_reg = '1')) THEN
|
2536 |
|
|
mem_invalidate_loc(primary_port_is_b) <= TRUE,FALSE AFTER 0.5 ns;
|
2537 |
|
|
read_latch_invalidate(primary_port_is_b) <= TRUE,FALSE AFTER 0.5 ns;
|
2538 |
|
|
END IF;
|
2539 |
|
|
END IF;
|
2540 |
|
|
END PROCESS clear_b;
|
2541 |
|
|
|
2542 |
|
|
|
2543 |
|
|
|
2544 |
|
|
|
2545 |
|
|
-- ------ Output registers
|
2546 |
|
|
clkena_a_out <= '1' WHEN (port_a_disable_ce_on_output_registers = "on") ELSE
|
2547 |
|
|
ena0 WHEN (port_a_data_out_clock = "clock0") ELSE ena1;
|
2548 |
|
|
|
2549 |
|
|
clkena_b_out <= '1' WHEN (port_b_disable_ce_on_output_registers = "on") ELSE
|
2550 |
|
|
ena0 WHEN (port_b_data_out_clock = "clock0") ELSE ena1;
|
2551 |
|
|
|
2552 |
|
|
|
2553 |
|
|
dataout_a <= dataout_prime WHEN primary_port_is_a ELSE dataout_sec;
|
2554 |
|
|
dataout_b <= (OTHERS => 'U') WHEN (mode_is_rom OR mode_is_sp) ELSE
|
2555 |
|
|
dataout_prime WHEN primary_port_is_b ELSE dataout_sec;
|
2556 |
|
|
|
2557 |
|
|
dataout_a_register : cycloneii_ram_register
|
2558 |
|
|
GENERIC MAP ( width => port_a_data_width )
|
2559 |
|
|
PORT MAP (
|
2560 |
|
|
d => dataout_a,
|
2561 |
|
|
clk => clk_a_out,
|
2562 |
|
|
aclr => dataout_a_clr,
|
2563 |
|
|
devclrn => devclrn,
|
2564 |
|
|
devpor => devpor,
|
2565 |
|
|
stall => wire_gnd,
|
2566 |
|
|
ena => clkena_a_out,
|
2567 |
|
|
q => dataout_a_reg
|
2568 |
|
|
);
|
2569 |
|
|
|
2570 |
|
|
dataout_b_register : cycloneii_ram_register
|
2571 |
|
|
GENERIC MAP ( width => port_b_data_width )
|
2572 |
|
|
PORT MAP (
|
2573 |
|
|
d => dataout_b,
|
2574 |
|
|
clk => clk_b_out,
|
2575 |
|
|
aclr => dataout_b_clr,
|
2576 |
|
|
devclrn => devclrn,
|
2577 |
|
|
devpor => devpor,
|
2578 |
|
|
stall => wire_gnd,
|
2579 |
|
|
ena => clkena_b_out,
|
2580 |
|
|
q => dataout_b_reg
|
2581 |
|
|
);
|
2582 |
|
|
|
2583 |
|
|
portadataout <= dataout_a_reg WHEN out_a_is_reg ELSE dataout_a;
|
2584 |
|
|
portbdataout <= dataout_b_reg WHEN out_b_is_reg ELSE dataout_b;
|
2585 |
|
|
|
2586 |
|
|
|
2587 |
|
|
END block_arch;
|
2588 |
|
|
|
2589 |
|
|
|
2590 |
|
|
-------------------------------------------------------------------
|
2591 |
|
|
--
|
2592 |
|
|
-- Entity Name : cycloneii_jtag
|
2593 |
|
|
--
|
2594 |
|
|
-- Description : CycloneII JTAG VHDL Simulation model
|
2595 |
|
|
--
|
2596 |
|
|
-------------------------------------------------------------------
|
2597 |
|
|
LIBRARY IEEE;
|
2598 |
|
|
use IEEE.std_logic_1164.all;
|
2599 |
|
|
use work.cycloneii_atom_pack.all;
|
2600 |
|
|
|
2601 |
|
|
entity cycloneii_jtag is
|
2602 |
|
|
generic (
|
2603 |
|
|
lpm_type : string := "cycloneii_jtag"
|
2604 |
|
|
);
|
2605 |
|
|
port (
|
2606 |
|
|
tms : in std_logic := '0';
|
2607 |
|
|
tck : in std_logic := '0';
|
2608 |
|
|
tdi : in std_logic := '0';
|
2609 |
|
|
ntrst : in std_logic := '0';
|
2610 |
|
|
tdoutap : in std_logic := '0';
|
2611 |
|
|
tdouser : in std_logic := '0';
|
2612 |
|
|
tdo: out std_logic;
|
2613 |
|
|
tmsutap: out std_logic;
|
2614 |
|
|
tckutap: out std_logic;
|
2615 |
|
|
tdiutap: out std_logic;
|
2616 |
|
|
shiftuser: out std_logic;
|
2617 |
|
|
clkdruser: out std_logic;
|
2618 |
|
|
updateuser: out std_logic;
|
2619 |
|
|
runidleuser: out std_logic;
|
2620 |
|
|
usr1user: out std_logic
|
2621 |
|
|
);
|
2622 |
|
|
end cycloneii_jtag;
|
2623 |
|
|
|
2624 |
|
|
architecture architecture_jtag of cycloneii_jtag is
|
2625 |
|
|
begin
|
2626 |
|
|
|
2627 |
|
|
end architecture_jtag;
|
2628 |
|
|
|
2629 |
|
|
-------------------------------------------------------------------
|
2630 |
|
|
--
|
2631 |
|
|
-- Entity Name : cycloneii_crcblock
|
2632 |
|
|
--
|
2633 |
|
|
-- Description : CycloneII CRCBLOCK VHDL Simulation model
|
2634 |
|
|
--
|
2635 |
|
|
-------------------------------------------------------------------
|
2636 |
|
|
LIBRARY IEEE;
|
2637 |
|
|
use IEEE.std_logic_1164.all;
|
2638 |
|
|
use work.cycloneii_atom_pack.all;
|
2639 |
|
|
|
2640 |
|
|
entity cycloneii_crcblock is
|
2641 |
|
|
generic (
|
2642 |
|
|
oscillator_divider : integer := 1;
|
2643 |
|
|
|
2644 |
|
|
lpm_type : string := "cycloneii_crcblock"
|
2645 |
|
|
);
|
2646 |
|
|
port (
|
2647 |
|
|
clk : in std_logic := '0';
|
2648 |
|
|
shiftnld : in std_logic := '0';
|
2649 |
|
|
ldsrc : in std_logic := '0';
|
2650 |
|
|
crcerror : out std_logic;
|
2651 |
|
|
regout : out std_logic
|
2652 |
|
|
);
|
2653 |
|
|
end cycloneii_crcblock;
|
2654 |
|
|
|
2655 |
|
|
architecture architecture_crcblock of cycloneii_crcblock is
|
2656 |
|
|
begin
|
2657 |
|
|
|
2658 |
|
|
end architecture_crcblock;
|
2659 |
|
|
-------------------------------------------------------------------
|
2660 |
|
|
--
|
2661 |
|
|
-- Entity Name : cycloneii_asmiblock
|
2662 |
|
|
--
|
2663 |
|
|
-- Description : CycloneII ASMIBLOCK VHDL Simulation model
|
2664 |
|
|
--
|
2665 |
|
|
-------------------------------------------------------------------
|
2666 |
|
|
LIBRARY IEEE;
|
2667 |
|
|
use IEEE.std_logic_1164.all;
|
2668 |
|
|
use work.cycloneii_atom_pack.all;
|
2669 |
|
|
|
2670 |
|
|
entity cycloneii_asmiblock is
|
2671 |
|
|
generic (
|
2672 |
|
|
lpm_type : string := "cycloneii_asmiblock"
|
2673 |
|
|
);
|
2674 |
|
|
port (dclkin : in std_logic;
|
2675 |
|
|
scein : in std_logic;
|
2676 |
|
|
sdoin : in std_logic;
|
2677 |
|
|
oe : in std_logic;
|
2678 |
|
|
data0out: out std_logic);
|
2679 |
|
|
end cycloneii_asmiblock;
|
2680 |
|
|
|
2681 |
|
|
architecture architecture_asmiblock of cycloneii_asmiblock is
|
2682 |
|
|
begin
|
2683 |
|
|
|
2684 |
|
|
process(dclkin, scein, sdoin, oe)
|
2685 |
|
|
begin
|
2686 |
|
|
|
2687 |
|
|
end process;
|
2688 |
|
|
|
2689 |
|
|
end architecture_asmiblock; -- end of cycloneii_asmiblock
|
2690 |
|
|
--///////////////////////////////////////////////////////////////////////////
|
2691 |
|
|
--
|
2692 |
|
|
-- Entity Name : cycloneii_m_cntr
|
2693 |
|
|
--
|
2694 |
|
|
-- Description : Timing simulation model for the M counter. M is the loop
|
2695 |
|
|
-- feedback counter of the CycloneII PLL.
|
2696 |
|
|
--
|
2697 |
|
|
--///////////////////////////////////////////////////////////////////////////
|
2698 |
|
|
|
2699 |
|
|
LIBRARY IEEE;
|
2700 |
|
|
USE IEEE.std_logic_1164.all;
|
2701 |
|
|
USE IEEE.VITAL_Timing.all;
|
2702 |
|
|
USE IEEE.VITAL_Primitives.all;
|
2703 |
|
|
|
2704 |
|
|
ENTITY cycloneii_m_cntr is
|
2705 |
|
|
PORT( clk : IN std_logic;
|
2706 |
|
|
reset : IN std_logic := '0';
|
2707 |
|
|
cout : OUT std_logic;
|
2708 |
|
|
initial_value : IN integer := 1;
|
2709 |
|
|
modulus : IN integer := 1;
|
2710 |
|
|
time_delay : IN integer := 0
|
2711 |
|
|
);
|
2712 |
|
|
END cycloneii_m_cntr;
|
2713 |
|
|
|
2714 |
|
|
ARCHITECTURE behave of cycloneii_m_cntr is
|
2715 |
|
|
begin
|
2716 |
|
|
|
2717 |
|
|
process (clk, reset)
|
2718 |
|
|
variable count : integer := 1;
|
2719 |
|
|
variable first_rising_edge : boolean := true;
|
2720 |
|
|
variable tmp_cout : std_logic;
|
2721 |
|
|
begin
|
2722 |
|
|
if (reset = '1') then
|
2723 |
|
|
count := 1;
|
2724 |
|
|
tmp_cout := '0';
|
2725 |
|
|
first_rising_edge := true;
|
2726 |
|
|
elsif (clk'event) then
|
2727 |
|
|
if (clk = '1' and first_rising_edge) then
|
2728 |
|
|
first_rising_edge := false;
|
2729 |
|
|
tmp_cout := clk;
|
2730 |
|
|
elsif (not first_rising_edge) then
|
2731 |
|
|
if (count < modulus) then
|
2732 |
|
|
count := count + 1;
|
2733 |
|
|
else
|
2734 |
|
|
count := 1;
|
2735 |
|
|
tmp_cout := not tmp_cout;
|
2736 |
|
|
end if;
|
2737 |
|
|
end if;
|
2738 |
|
|
end if;
|
2739 |
|
|
cout <= transport tmp_cout after time_delay * 1 ps;
|
2740 |
|
|
end process;
|
2741 |
|
|
end behave;
|
2742 |
|
|
|
2743 |
|
|
--///////////////////////////////////////////////////////////////////////////
|
2744 |
|
|
--
|
2745 |
|
|
-- Entity Name : cycloneii_n_cntr
|
2746 |
|
|
--
|
2747 |
|
|
-- Description : Timing simulation model for the N counter. N is the
|
2748 |
|
|
-- input counter of the CycloneII PLL.
|
2749 |
|
|
--
|
2750 |
|
|
--///////////////////////////////////////////////////////////////////////////
|
2751 |
|
|
|
2752 |
|
|
LIBRARY IEEE;
|
2753 |
|
|
USE IEEE.std_logic_1164.all;
|
2754 |
|
|
USE IEEE.VITAL_Timing.all;
|
2755 |
|
|
USE IEEE.VITAL_Primitives.all;
|
2756 |
|
|
|
2757 |
|
|
ENTITY cycloneii_n_cntr is
|
2758 |
|
|
PORT( clk : IN std_logic;
|
2759 |
|
|
reset : IN std_logic := '0';
|
2760 |
|
|
cout : OUT std_logic;
|
2761 |
|
|
initial_value : IN integer := 1;
|
2762 |
|
|
modulus : IN integer := 1;
|
2763 |
|
|
time_delay : IN integer := 0
|
2764 |
|
|
);
|
2765 |
|
|
END cycloneii_n_cntr;
|
2766 |
|
|
|
2767 |
|
|
ARCHITECTURE behave of cycloneii_n_cntr is
|
2768 |
|
|
begin
|
2769 |
|
|
|
2770 |
|
|
process (clk, reset)
|
2771 |
|
|
variable count : integer := 1;
|
2772 |
|
|
variable first_rising_edge : boolean := true;
|
2773 |
|
|
variable tmp_cout : std_logic;
|
2774 |
|
|
variable clk_last_valid_value : std_logic;
|
2775 |
|
|
begin
|
2776 |
|
|
if (reset = '1') then
|
2777 |
|
|
count := 1;
|
2778 |
|
|
tmp_cout := '0';
|
2779 |
|
|
first_rising_edge := true;
|
2780 |
|
|
elsif (clk'event) then
|
2781 |
|
|
if (clk = 'X') then
|
2782 |
|
|
ASSERT FALSE REPORT "Invalid transition to 'X' detected on PLL input clk. This edge will be ignored." severity warning;
|
2783 |
|
|
elsif (clk = '1' and first_rising_edge) then
|
2784 |
|
|
first_rising_edge := false;
|
2785 |
|
|
tmp_cout := clk;
|
2786 |
|
|
elsif (not first_rising_edge) then
|
2787 |
|
|
if (count < modulus) then
|
2788 |
|
|
count := count + 1;
|
2789 |
|
|
else
|
2790 |
|
|
count := 1;
|
2791 |
|
|
tmp_cout := not tmp_cout;
|
2792 |
|
|
end if;
|
2793 |
|
|
end if;
|
2794 |
|
|
end if;
|
2795 |
|
|
if (clk /= 'X') then
|
2796 |
|
|
clk_last_valid_value := clk;
|
2797 |
|
|
end if;
|
2798 |
|
|
cout <= transport tmp_cout after time_delay * 1 ps;
|
2799 |
|
|
end process;
|
2800 |
|
|
end behave;
|
2801 |
|
|
|
2802 |
|
|
--/////////////////////////////////////////////////////////////////////////////
|
2803 |
|
|
--
|
2804 |
|
|
-- Entity Name : cycloneii_scale_cntr
|
2805 |
|
|
--
|
2806 |
|
|
-- Description : Timing simulation model for the output scale-down counters.
|
2807 |
|
|
-- This is a common model for the C0, C1, C2, C3, C4 and C5
|
2808 |
|
|
-- output counters of the CycloneII PLL.
|
2809 |
|
|
--
|
2810 |
|
|
--/////////////////////////////////////////////////////////////////////////////
|
2811 |
|
|
|
2812 |
|
|
LIBRARY IEEE;
|
2813 |
|
|
USE IEEE.std_logic_1164.all;
|
2814 |
|
|
USE IEEE.VITAL_Timing.all;
|
2815 |
|
|
USE IEEE.VITAL_Primitives.all;
|
2816 |
|
|
|
2817 |
|
|
ENTITY cycloneii_scale_cntr is
|
2818 |
|
|
PORT( clk : IN std_logic;
|
2819 |
|
|
reset : IN std_logic := '0';
|
2820 |
|
|
initial : IN integer := 1;
|
2821 |
|
|
high : IN integer := 1;
|
2822 |
|
|
low : IN integer := 1;
|
2823 |
|
|
mode : IN string := "bypass";
|
2824 |
|
|
ph_tap : IN integer := 0;
|
2825 |
|
|
cout : OUT std_logic
|
2826 |
|
|
);
|
2827 |
|
|
END cycloneii_scale_cntr;
|
2828 |
|
|
|
2829 |
|
|
ARCHITECTURE behave of cycloneii_scale_cntr is
|
2830 |
|
|
begin
|
2831 |
|
|
process (clk, reset)
|
2832 |
|
|
variable tmp_cout : std_logic := '0';
|
2833 |
|
|
variable count : integer := 1;
|
2834 |
|
|
variable output_shift_count : integer := 1;
|
2835 |
|
|
variable first_rising_edge : boolean := false;
|
2836 |
|
|
begin
|
2837 |
|
|
if (reset = '1') then
|
2838 |
|
|
count := 1;
|
2839 |
|
|
output_shift_count := 1;
|
2840 |
|
|
tmp_cout := '0';
|
2841 |
|
|
first_rising_edge := false;
|
2842 |
|
|
elsif (clk'event) then
|
2843 |
|
|
if (mode = " off") then
|
2844 |
|
|
tmp_cout := '0';
|
2845 |
|
|
elsif (mode = "bypass") then
|
2846 |
|
|
tmp_cout := clk;
|
2847 |
|
|
first_rising_edge := true;
|
2848 |
|
|
elsif (not first_rising_edge) then
|
2849 |
|
|
if (clk = '1') then
|
2850 |
|
|
if (output_shift_count = initial) then
|
2851 |
|
|
tmp_cout := clk;
|
2852 |
|
|
first_rising_edge := true;
|
2853 |
|
|
else
|
2854 |
|
|
output_shift_count := output_shift_count + 1;
|
2855 |
|
|
end if;
|
2856 |
|
|
end if;
|
2857 |
|
|
elsif (output_shift_count < initial) then
|
2858 |
|
|
if (clk = '1') then
|
2859 |
|
|
output_shift_count := output_shift_count + 1;
|
2860 |
|
|
end if;
|
2861 |
|
|
else
|
2862 |
|
|
count := count + 1;
|
2863 |
|
|
if (mode = " even" and (count = (high*2) + 1)) then
|
2864 |
|
|
tmp_cout := '0';
|
2865 |
|
|
elsif (mode = " odd" and (count = high*2)) then
|
2866 |
|
|
tmp_cout := '0';
|
2867 |
|
|
elsif (count = (high + low)*2 + 1) then
|
2868 |
|
|
tmp_cout := '1';
|
2869 |
|
|
count := 1; -- reset count
|
2870 |
|
|
end if;
|
2871 |
|
|
end if;
|
2872 |
|
|
end if;
|
2873 |
|
|
cout <= transport tmp_cout;
|
2874 |
|
|
end process;
|
2875 |
|
|
|
2876 |
|
|
end behave;
|
2877 |
|
|
|
2878 |
|
|
--/////////////////////////////////////////////////////////////////////////////
|
2879 |
|
|
--
|
2880 |
|
|
-- Entity Name : cycloneii_pll_reg
|
2881 |
|
|
--
|
2882 |
|
|
-- Description : Simulation model for a simple DFF.
|
2883 |
|
|
-- This is required for the generation of the bit slip-signals.
|
2884 |
|
|
-- No timing, powers upto 0.
|
2885 |
|
|
--
|
2886 |
|
|
--/////////////////////////////////////////////////////////////////////////////
|
2887 |
|
|
LIBRARY IEEE;
|
2888 |
|
|
USE IEEE.std_logic_1164.all;
|
2889 |
|
|
|
2890 |
|
|
ENTITY cycloneii_pll_reg is
|
2891 |
|
|
PORT( clk : in std_logic;
|
2892 |
|
|
ena : in std_logic := '1';
|
2893 |
|
|
d : in std_logic;
|
2894 |
|
|
clrn : in std_logic := '1';
|
2895 |
|
|
prn : in std_logic := '1';
|
2896 |
|
|
q : out std_logic
|
2897 |
|
|
);
|
2898 |
|
|
end cycloneii_pll_reg;
|
2899 |
|
|
|
2900 |
|
|
ARCHITECTURE behave of cycloneii_pll_reg is
|
2901 |
|
|
begin
|
2902 |
|
|
process (clk, prn, clrn)
|
2903 |
|
|
variable q_reg : std_logic := '0';
|
2904 |
|
|
begin
|
2905 |
|
|
if (prn = '0') then
|
2906 |
|
|
q_reg := '1';
|
2907 |
|
|
elsif (clrn = '0') then
|
2908 |
|
|
q_reg := '0';
|
2909 |
|
|
elsif (clk'event and clk = '1' and (ena = '1')) then
|
2910 |
|
|
q_reg := D;
|
2911 |
|
|
end if;
|
2912 |
|
|
|
2913 |
|
|
Q <= q_reg;
|
2914 |
|
|
end process;
|
2915 |
|
|
end behave;
|
2916 |
|
|
--///////////////////////////////////////////////////////////////////////////
|
2917 |
|
|
--
|
2918 |
|
|
-- Entity Name : cycloneii_pll
|
2919 |
|
|
--
|
2920 |
|
|
-- Description : Timing simulation model for the CycloneII PLL.
|
2921 |
|
|
-- In the functional mode, it is also the model for the altpll
|
2922 |
|
|
-- megafunction.
|
2923 |
|
|
--
|
2924 |
|
|
-- Limitations : Does not support Spread Spectrum and Bandwidth.
|
2925 |
|
|
--
|
2926 |
|
|
-- Outputs : Up to 6 output clocks, each defined by its own set of
|
2927 |
|
|
-- parameters. Locked output (active high) indicates when the
|
2928 |
|
|
-- PLL locks. clkbad, clkloss and activeclock are used for
|
2929 |
|
|
-- clock switchover to indicate which input clock has gone
|
2930 |
|
|
-- bad, when the clock switchover initiates and which input
|
2931 |
|
|
-- clock is being used as the reference, respectively.
|
2932 |
|
|
-- scandataout is the data output of the serial scan chain.
|
2933 |
|
|
--
|
2934 |
|
|
--///////////////////////////////////////////////////////////////////////////
|
2935 |
|
|
LIBRARY IEEE, std;
|
2936 |
|
|
USE IEEE.std_logic_1164.all;
|
2937 |
|
|
USE IEEE.VITAL_Timing.all;
|
2938 |
|
|
USE IEEE.VITAL_Primitives.all;
|
2939 |
|
|
USE STD.TEXTIO.all;
|
2940 |
|
|
USE work.cycloneii_atom_pack.all;
|
2941 |
|
|
USE work.cycloneii_pllpack.all;
|
2942 |
|
|
USE work.cycloneii_m_cntr;
|
2943 |
|
|
USE work.cycloneii_n_cntr;
|
2944 |
|
|
USE work.cycloneii_scale_cntr;
|
2945 |
|
|
USE work.cycloneii_dffe;
|
2946 |
|
|
USE work.cycloneii_pll_reg;
|
2947 |
|
|
|
2948 |
|
|
ENTITY cycloneii_pll is
|
2949 |
|
|
GENERIC (
|
2950 |
|
|
operation_mode : string := "normal";
|
2951 |
|
|
pll_type : string := "auto"; -- EGPP/FAST/AUTO
|
2952 |
|
|
compensate_clock : string := "clk0";
|
2953 |
|
|
feedback_source : string := "clk0";
|
2954 |
|
|
qualify_conf_done : string := "off";
|
2955 |
|
|
|
2956 |
|
|
test_input_comp_delay : integer := 0;
|
2957 |
|
|
test_feedback_comp_delay : integer := 0;
|
2958 |
|
|
|
2959 |
|
|
inclk0_input_frequency : integer := 10000;
|
2960 |
|
|
inclk1_input_frequency : integer := 10000;
|
2961 |
|
|
|
2962 |
|
|
gate_lock_signal : string := "no";
|
2963 |
|
|
gate_lock_counter : integer := 1;
|
2964 |
|
|
self_reset_on_gated_loss_lock : string := "off";
|
2965 |
|
|
valid_lock_multiplier : integer := 1;
|
2966 |
|
|
invalid_lock_multiplier : integer := 5;
|
2967 |
|
|
sim_gate_lock_device_behavior : string := "off";
|
2968 |
|
|
|
2969 |
|
|
switch_over_type : string := "manual";
|
2970 |
|
|
switch_over_on_lossclk : string := "off";
|
2971 |
|
|
switch_over_on_gated_lock : string := "off";
|
2972 |
|
|
switch_over_counter : integer := 1;
|
2973 |
|
|
enable_switch_over_counter : string := "on";
|
2974 |
|
|
|
2975 |
|
|
bandwidth : integer := 0;
|
2976 |
|
|
bandwidth_type : string := "auto";
|
2977 |
|
|
down_spread : string := "0.0";
|
2978 |
|
|
spread_frequency : integer := 0;
|
2979 |
|
|
|
2980 |
|
|
clk0_output_frequency : integer := 0;
|
2981 |
|
|
clk0_multiply_by : integer := 1;
|
2982 |
|
|
clk0_divide_by : integer := 1;
|
2983 |
|
|
clk0_phase_shift : string := "0";
|
2984 |
|
|
clk0_duty_cycle : integer := 50;
|
2985 |
|
|
|
2986 |
|
|
clk1_output_frequency : integer := 0;
|
2987 |
|
|
clk1_multiply_by : integer := 1;
|
2988 |
|
|
clk1_divide_by : integer := 1;
|
2989 |
|
|
clk1_phase_shift : string := "0";
|
2990 |
|
|
clk1_duty_cycle : integer := 50;
|
2991 |
|
|
|
2992 |
|
|
clk2_output_frequency : integer := 0;
|
2993 |
|
|
clk2_multiply_by : integer := 1;
|
2994 |
|
|
clk2_divide_by : integer := 1;
|
2995 |
|
|
clk2_phase_shift : string := "0";
|
2996 |
|
|
clk2_duty_cycle : integer := 50;
|
2997 |
|
|
|
2998 |
|
|
clk3_output_frequency : integer := 0;
|
2999 |
|
|
clk3_multiply_by : integer := 1;
|
3000 |
|
|
clk3_divide_by : integer := 1;
|
3001 |
|
|
clk3_phase_shift : string := "0";
|
3002 |
|
|
clk3_duty_cycle : integer := 50;
|
3003 |
|
|
|
3004 |
|
|
clk4_output_frequency : integer := 0;
|
3005 |
|
|
clk4_multiply_by : integer := 1;
|
3006 |
|
|
clk4_divide_by : integer := 1;
|
3007 |
|
|
clk4_phase_shift : string := "0";
|
3008 |
|
|
clk4_duty_cycle : integer := 50;
|
3009 |
|
|
|
3010 |
|
|
clk5_output_frequency : integer := 0;
|
3011 |
|
|
clk5_multiply_by : integer := 1;
|
3012 |
|
|
clk5_divide_by : integer := 1;
|
3013 |
|
|
clk5_phase_shift : string := "0";
|
3014 |
|
|
clk5_duty_cycle : integer := 50;
|
3015 |
|
|
|
3016 |
|
|
pfd_min : integer := 0;
|
3017 |
|
|
pfd_max : integer := 0;
|
3018 |
|
|
vco_min : integer := 0;
|
3019 |
|
|
vco_max : integer := 0;
|
3020 |
|
|
vco_center : integer := 0;
|
3021 |
|
|
|
3022 |
|
|
-- ADVANCED USER PARAMETERS
|
3023 |
|
|
m_initial : integer := 1;
|
3024 |
|
|
m : integer := 0;
|
3025 |
|
|
n : integer := 1;
|
3026 |
|
|
m2 : integer := 1;
|
3027 |
|
|
n2 : integer := 1;
|
3028 |
|
|
ss : integer := 0;
|
3029 |
|
|
|
3030 |
|
|
c0_high : integer := 1;
|
3031 |
|
|
c0_low : integer := 1;
|
3032 |
|
|
c0_initial : integer := 1;
|
3033 |
|
|
c0_mode : string := "bypass";
|
3034 |
|
|
c0_ph : integer := 0;
|
3035 |
|
|
|
3036 |
|
|
c1_high : integer := 1;
|
3037 |
|
|
c1_low : integer := 1;
|
3038 |
|
|
c1_initial : integer := 1;
|
3039 |
|
|
c1_mode : string := "bypass";
|
3040 |
|
|
c1_ph : integer := 0;
|
3041 |
|
|
|
3042 |
|
|
c2_high : integer := 1;
|
3043 |
|
|
c2_low : integer := 1;
|
3044 |
|
|
c2_initial : integer := 1;
|
3045 |
|
|
c2_mode : string := "bypass";
|
3046 |
|
|
c2_ph : integer := 0;
|
3047 |
|
|
|
3048 |
|
|
c3_high : integer := 1;
|
3049 |
|
|
c3_low : integer := 1;
|
3050 |
|
|
c3_initial : integer := 1;
|
3051 |
|
|
c3_mode : string := "bypass";
|
3052 |
|
|
c3_ph : integer := 0;
|
3053 |
|
|
|
3054 |
|
|
c4_high : integer := 1;
|
3055 |
|
|
c4_low : integer := 1;
|
3056 |
|
|
c4_initial : integer := 1;
|
3057 |
|
|
c4_mode : string := "bypass";
|
3058 |
|
|
c4_ph : integer := 0;
|
3059 |
|
|
|
3060 |
|
|
c5_high : integer := 1;
|
3061 |
|
|
c5_low : integer := 1;
|
3062 |
|
|
c5_initial : integer := 1;
|
3063 |
|
|
c5_mode : string := "bypass";
|
3064 |
|
|
c5_ph : integer := 0;
|
3065 |
|
|
|
3066 |
|
|
m_ph : integer := 0;
|
3067 |
|
|
|
3068 |
|
|
clk0_counter : string := "c0";
|
3069 |
|
|
clk1_counter : string := "c1";
|
3070 |
|
|
clk2_counter : string := "c2";
|
3071 |
|
|
clk3_counter : string := "c3";
|
3072 |
|
|
clk4_counter : string := "c4";
|
3073 |
|
|
clk5_counter : string := "c5";
|
3074 |
|
|
|
3075 |
|
|
c1_use_casc_in : string := "off";
|
3076 |
|
|
c2_use_casc_in : string := "off";
|
3077 |
|
|
c3_use_casc_in : string := "off";
|
3078 |
|
|
c4_use_casc_in : string := "off";
|
3079 |
|
|
c5_use_casc_in : string := "off";
|
3080 |
|
|
|
3081 |
|
|
m_test_source : integer := 5;
|
3082 |
|
|
c0_test_source : integer := 5;
|
3083 |
|
|
c1_test_source : integer := 5;
|
3084 |
|
|
c2_test_source : integer := 5;
|
3085 |
|
|
c3_test_source : integer := 5;
|
3086 |
|
|
c4_test_source : integer := 5;
|
3087 |
|
|
c5_test_source : integer := 5;
|
3088 |
|
|
|
3089 |
|
|
-- LVDS mode parameters
|
3090 |
|
|
enable0_counter : string := "c0";
|
3091 |
|
|
enable1_counter : string := "c1";
|
3092 |
|
|
sclkout0_phase_shift : string := "0";
|
3093 |
|
|
sclkout1_phase_shift : string := "0";
|
3094 |
|
|
|
3095 |
|
|
charge_pump_current : integer := 52;
|
3096 |
|
|
loop_filter_r : string := " 1.000000";
|
3097 |
|
|
loop_filter_c : integer := 16;
|
3098 |
|
|
use_vco_bypass : string := "false";
|
3099 |
|
|
use_dc_coupling : string := "false";
|
3100 |
|
|
|
3101 |
|
|
pll_compensation_delay : integer := 0;
|
3102 |
|
|
simulation_type : string := "functional";
|
3103 |
|
|
lpm_type : string := "cycloneii_pll";
|
3104 |
|
|
|
3105 |
|
|
-- Simulation only generics
|
3106 |
|
|
family_name : string := "CycloneII";
|
3107 |
|
|
|
3108 |
|
|
clk0_use_even_counter_mode : string := "off";
|
3109 |
|
|
clk1_use_even_counter_mode : string := "off";
|
3110 |
|
|
clk2_use_even_counter_mode : string := "off";
|
3111 |
|
|
clk3_use_even_counter_mode : string := "off";
|
3112 |
|
|
clk4_use_even_counter_mode : string := "off";
|
3113 |
|
|
clk5_use_even_counter_mode : string := "off";
|
3114 |
|
|
|
3115 |
|
|
clk0_use_even_counter_value : string := "off";
|
3116 |
|
|
clk1_use_even_counter_value : string := "off";
|
3117 |
|
|
clk2_use_even_counter_value : string := "off";
|
3118 |
|
|
clk3_use_even_counter_value : string := "off";
|
3119 |
|
|
clk4_use_even_counter_value : string := "off";
|
3120 |
|
|
clk5_use_even_counter_value : string := "off";
|
3121 |
|
|
|
3122 |
|
|
vco_multiply_by : integer := 0;
|
3123 |
|
|
vco_divide_by : integer := 0;
|
3124 |
|
|
vco_post_scale : integer := 1;
|
3125 |
|
|
|
3126 |
|
|
-- VITAL generics
|
3127 |
|
|
XOn : Boolean := DefGlitchXOn;
|
3128 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
3129 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
3130 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
3131 |
|
|
TimingChecksOn : Boolean := true;
|
3132 |
|
|
InstancePath : STRING := "*";
|
3133 |
|
|
tipd_inclk : VitalDelayArrayType01(1 downto 0) := (OTHERS => DefPropDelay01);
|
3134 |
|
|
tipd_ena : VitalDelayType01 := DefPropDelay01;
|
3135 |
|
|
tipd_pfdena : VitalDelayType01 := DefPropDelay01;
|
3136 |
|
|
tipd_areset : VitalDelayType01 := DefPropDelay01;
|
3137 |
|
|
tipd_clkswitch : VitalDelayType01 := DefPropDelay01
|
3138 |
|
|
);
|
3139 |
|
|
|
3140 |
|
|
PORT
|
3141 |
|
|
(
|
3142 |
|
|
inclk : in std_logic_vector(1 downto 0);
|
3143 |
|
|
ena : in std_logic := '1';
|
3144 |
|
|
clkswitch : in std_logic := '0';
|
3145 |
|
|
areset : in std_logic := '0';
|
3146 |
|
|
pfdena : in std_logic := '1';
|
3147 |
|
|
testclearlock : in std_logic := '0';
|
3148 |
|
|
sbdin : in std_logic := '0';
|
3149 |
|
|
clk : out std_logic_vector(2 downto 0);
|
3150 |
|
|
locked : out std_logic;
|
3151 |
|
|
testupout : out std_logic;
|
3152 |
|
|
testdownout : out std_logic;
|
3153 |
|
|
sbdout : out std_logic
|
3154 |
|
|
);
|
3155 |
|
|
END cycloneii_pll;
|
3156 |
|
|
|
3157 |
|
|
ARCHITECTURE vital_pll of cycloneii_pll is
|
3158 |
|
|
|
3159 |
|
|
TYPE int_array is ARRAY(NATURAL RANGE <>) of integer;
|
3160 |
|
|
TYPE str_array is ARRAY(NATURAL RANGE <>) of string(1 to 6);
|
3161 |
|
|
TYPE str_array1 is ARRAY(NATURAL RANGE <>) of string(1 to 9);
|
3162 |
|
|
TYPE std_logic_array is ARRAY(NATURAL RANGE <>) of std_logic;
|
3163 |
|
|
|
3164 |
|
|
-- internal advanced parameter signals
|
3165 |
|
|
signal i_vco_min : integer;
|
3166 |
|
|
signal i_vco_max : integer;
|
3167 |
|
|
signal i_vco_center : integer;
|
3168 |
|
|
signal i_pfd_min : integer;
|
3169 |
|
|
signal i_pfd_max : integer;
|
3170 |
|
|
signal c_ph_val : int_array(0 to 5) := (OTHERS => 0);
|
3171 |
|
|
signal c_high_val : int_array(0 to 5) := (OTHERS => 1);
|
3172 |
|
|
signal c_low_val : int_array(0 to 5) := (OTHERS => 1);
|
3173 |
|
|
signal c_initial_val : int_array(0 to 5) := (OTHERS => 1);
|
3174 |
|
|
signal c_mode_val : str_array(0 to 5);
|
3175 |
|
|
|
3176 |
|
|
-- old values
|
3177 |
|
|
signal c_high_val_old : int_array(0 to 5) := (OTHERS => 1);
|
3178 |
|
|
signal c_low_val_old : int_array(0 to 5) := (OTHERS => 1);
|
3179 |
|
|
signal c_ph_val_old : int_array(0 to 5) := (OTHERS => 0);
|
3180 |
|
|
signal c_mode_val_old : str_array(0 to 5);
|
3181 |
|
|
|
3182 |
|
|
-- hold registers
|
3183 |
|
|
signal c_high_val_hold : int_array(0 to 5) := (OTHERS => 1);
|
3184 |
|
|
signal c_low_val_hold : int_array(0 to 5) := (OTHERS => 1);
|
3185 |
|
|
signal c_ph_val_hold : int_array(0 to 5) := (OTHERS => 0);
|
3186 |
|
|
signal c_mode_val_hold : str_array(0 to 5);
|
3187 |
|
|
|
3188 |
|
|
-- temp registers
|
3189 |
|
|
signal sig_c_ph_val_tmp : int_array(0 to 5) := (OTHERS => 0);
|
3190 |
|
|
signal sig_c_low_val_tmp : int_array(0 to 5) := (OTHERS => 1);
|
3191 |
|
|
signal sig_c_hi_val_tmp : int_array(0 to 5) := (OTHERS => 1);
|
3192 |
|
|
signal c_ph_val_orig : int_array(0 to 5) := (OTHERS => 0);
|
3193 |
|
|
|
3194 |
|
|
--signal i_clk5_counter : string(1 to 2) := "c5";
|
3195 |
|
|
--signal i_clk4_counter : string(1 to 2) := "c4";
|
3196 |
|
|
--signal i_clk3_counter : string(1 to 2) := "c3";
|
3197 |
|
|
--signal i_clk2_counter : string(1 to 2) := "c2";
|
3198 |
|
|
--signal i_clk1_counter : string(1 to 2) := "c1";
|
3199 |
|
|
--signal i_clk0_counter : string(1 to 2) := "c0";
|
3200 |
|
|
|
3201 |
|
|
signal i_clk5_counter : integer := 5;
|
3202 |
|
|
signal i_clk4_counter : integer := 4;
|
3203 |
|
|
signal i_clk3_counter : integer := 3;
|
3204 |
|
|
signal i_clk2_counter : integer := 2;
|
3205 |
|
|
signal i_clk1_counter : integer := 1;
|
3206 |
|
|
signal i_clk0_counter : integer := 0;
|
3207 |
|
|
signal i_charge_pump_current : integer;
|
3208 |
|
|
signal i_loop_filter_r : integer;
|
3209 |
|
|
|
3210 |
|
|
-- end internal advanced parameter signals
|
3211 |
|
|
|
3212 |
|
|
-- CONSTANTS
|
3213 |
|
|
CONSTANT GPP_SCAN_CHAIN : integer := 174;
|
3214 |
|
|
CONSTANT FAST_SCAN_CHAIN : integer := 75;
|
3215 |
|
|
CONSTANT GATE_LOCK_CYCLES : integer := 7;
|
3216 |
|
|
|
3217 |
|
|
CONSTANT cntrs : str_array(5 downto 0) := (" C5", " C4", " C3", " C2", " C1", " C0");
|
3218 |
|
|
CONSTANT ss_cntrs : str_array(0 to 3) := (" M", " M2", " N", " N2");
|
3219 |
|
|
|
3220 |
|
|
CONSTANT loop_filter_c_arr : int_array(0 to 3) := (57, 16, 36, 5);
|
3221 |
|
|
CONSTANT fpll_loop_filter_c_arr : int_array(0 to 3) := (18, 13, 8, 2);
|
3222 |
|
|
CONSTANT charge_pump_curr_arr : int_array(0 to 15) := (6, 12, 30, 36, 52, 57, 72, 77, 92, 96, 110, 114, 127, 131, 144, 148);
|
3223 |
|
|
CONSTANT loop_filter_r_arr : str_array1(0 to 39) := (" 1.000000", " 1.500000", " 2.000000", " 2.500000", " 3.000000", " 3.500000", " 4.000000", " 4.500000", " 5.000000", " 5.500000", " 6.000000", " 6.500000", " 7.000000", " 7.500000", " 8.000000", " 8.500000", " 9.000000", " 9.500000", "10.000000", "10.500000", "11.000000", "11.500000", "12.000000", "12.500000", "13.000000", "13.500000", "14.000000", "14.500000", "15.000000", "15.500000", "16.000000", "16.500000", "17.000000", "17.500000", "18.000000", "18.500000", "19.000000", "19.500000", "20.000000", "20.500000");
|
3224 |
|
|
|
3225 |
|
|
-- signals
|
3226 |
|
|
|
3227 |
|
|
signal vcc : std_logic := '1';
|
3228 |
|
|
|
3229 |
|
|
signal fbclk : std_logic;
|
3230 |
|
|
signal refclk : std_logic;
|
3231 |
|
|
|
3232 |
|
|
signal c_clk : std_logic_array(0 to 5);
|
3233 |
|
|
signal vco_out : std_logic_vector(7 downto 0) := (OTHERS => '0');
|
3234 |
|
|
signal vco_tap : std_logic_vector(7 downto 0) := (OTHERS => '0');
|
3235 |
|
|
signal vco_out_last_value : std_logic_vector(7 downto 0);
|
3236 |
|
|
signal vco_tap_last_value : std_logic_vector(7 downto 0);
|
3237 |
|
|
|
3238 |
|
|
-- signals to assign values to counter params
|
3239 |
|
|
signal m_val : int_array(0 to 1) := (OTHERS => 1);
|
3240 |
|
|
signal n_val : int_array(0 to 1) := (OTHERS => 1);
|
3241 |
|
|
signal m_ph_val : integer := 0;
|
3242 |
|
|
signal m_initial_val : integer := m_initial;
|
3243 |
|
|
|
3244 |
|
|
signal m_mode_val : str_array(0 to 1) := (OTHERS => " ");
|
3245 |
|
|
signal n_mode_val : str_array(0 to 1) := (OTHERS => " ");
|
3246 |
|
|
signal lfc_val : integer := 0;
|
3247 |
|
|
signal cp_curr_val : integer := 0;
|
3248 |
|
|
signal lfr_val : string(1 to 9) := " ";
|
3249 |
|
|
|
3250 |
|
|
-- old values
|
3251 |
|
|
signal m_val_old : int_array(0 to 1) := (OTHERS => 1);
|
3252 |
|
|
signal n_val_old : int_array(0 to 1) := (OTHERS => 1);
|
3253 |
|
|
signal m_mode_val_old : str_array(0 to 1) := (OTHERS => " ");
|
3254 |
|
|
signal n_mode_val_old : str_array(0 to 1) := (OTHERS => " ");
|
3255 |
|
|
signal m_ph_val_old : integer := 0;
|
3256 |
|
|
signal lfc_old : integer := 0;
|
3257 |
|
|
signal cp_curr_old : integer := 0;
|
3258 |
|
|
signal lfr_old : string(1 to 9) := " ";
|
3259 |
|
|
signal num_output_cntrs : integer := 6;
|
3260 |
|
|
|
3261 |
|
|
signal scan_data : std_logic_vector(173 downto 0) := (OTHERS => '0');
|
3262 |
|
|
|
3263 |
|
|
signal clk0_tmp : std_logic;
|
3264 |
|
|
signal clk1_tmp : std_logic;
|
3265 |
|
|
signal clk2_tmp : std_logic;
|
3266 |
|
|
signal clk3_tmp : std_logic;
|
3267 |
|
|
signal clk4_tmp : std_logic;
|
3268 |
|
|
signal clk5_tmp : std_logic;
|
3269 |
|
|
signal sclkout0_tmp : std_logic;
|
3270 |
|
|
signal sclkout1_tmp : std_logic;
|
3271 |
|
|
|
3272 |
|
|
signal clkin : std_logic := '0';
|
3273 |
|
|
signal gate_locked : std_logic := '0';
|
3274 |
|
|
signal lock : std_logic := '0';
|
3275 |
|
|
signal about_to_lock : boolean := false;
|
3276 |
|
|
signal reconfig_err : boolean := false;
|
3277 |
|
|
|
3278 |
|
|
signal inclk_c0 : std_logic;
|
3279 |
|
|
signal inclk_c1 : std_logic;
|
3280 |
|
|
signal inclk_c2 : std_logic;
|
3281 |
|
|
signal inclk_c3 : std_logic;
|
3282 |
|
|
signal inclk_c4 : std_logic;
|
3283 |
|
|
signal inclk_c5 : std_logic;
|
3284 |
|
|
signal inclk_m : std_logic;
|
3285 |
|
|
signal devpor : std_logic;
|
3286 |
|
|
signal devclrn : std_logic;
|
3287 |
|
|
|
3288 |
|
|
signal inclk0_ipd : std_logic;
|
3289 |
|
|
signal inclk1_ipd : std_logic;
|
3290 |
|
|
signal ena_ipd : std_logic;
|
3291 |
|
|
signal pfdena_ipd : std_logic;
|
3292 |
|
|
signal areset_ipd : std_logic;
|
3293 |
|
|
signal fbin_ipd : std_logic;
|
3294 |
|
|
signal scanclk_ipd : std_logic;
|
3295 |
|
|
signal scanread_ipd : std_logic;
|
3296 |
|
|
signal scanwrite_ipd : std_logic;
|
3297 |
|
|
signal scandata_ipd : std_logic;
|
3298 |
|
|
signal clkswitch_ipd : std_logic;
|
3299 |
|
|
-- registered signals
|
3300 |
|
|
signal scanread_reg : std_logic := '0';
|
3301 |
|
|
signal scanwrite_reg : std_logic := '0';
|
3302 |
|
|
signal scanwrite_enabled : std_logic := '0';
|
3303 |
|
|
signal gated_scanclk : std_logic := '1';
|
3304 |
|
|
|
3305 |
|
|
signal inclk_c0_dly1 : std_logic := '0';
|
3306 |
|
|
signal inclk_c0_dly2 : std_logic := '0';
|
3307 |
|
|
signal inclk_c0_dly3 : std_logic := '0';
|
3308 |
|
|
signal inclk_c0_dly4 : std_logic := '0';
|
3309 |
|
|
signal inclk_c0_dly5 : std_logic := '0';
|
3310 |
|
|
signal inclk_c0_dly6 : std_logic := '0';
|
3311 |
|
|
signal inclk_c1_dly1 : std_logic := '0';
|
3312 |
|
|
signal inclk_c1_dly2 : std_logic := '0';
|
3313 |
|
|
signal inclk_c1_dly3 : std_logic := '0';
|
3314 |
|
|
signal inclk_c1_dly4 : std_logic := '0';
|
3315 |
|
|
signal inclk_c1_dly5 : std_logic := '0';
|
3316 |
|
|
signal inclk_c1_dly6 : std_logic := '0';
|
3317 |
|
|
|
3318 |
|
|
|
3319 |
|
|
signal sig_offset : time := 0 ps;
|
3320 |
|
|
signal sig_refclk_time : time := 0 ps;
|
3321 |
|
|
signal sig_fbclk_period : time := 0 ps;
|
3322 |
|
|
signal sig_vco_period_was_phase_adjusted : boolean := false;
|
3323 |
|
|
signal sig_phase_adjust_was_scheduled : boolean := false;
|
3324 |
|
|
signal sig_stop_vco : std_logic := '0';
|
3325 |
|
|
signal sig_m_times_vco_period : time := 0 ps;
|
3326 |
|
|
signal sig_new_m_times_vco_period : time := 0 ps;
|
3327 |
|
|
signal sig_got_refclk_posedge : boolean := false;
|
3328 |
|
|
signal sig_got_fbclk_posedge : boolean := false;
|
3329 |
|
|
signal sig_got_second_refclk : boolean := false;
|
3330 |
|
|
|
3331 |
|
|
signal m_delay : integer := 0;
|
3332 |
|
|
signal n_delay : integer := 0;
|
3333 |
|
|
|
3334 |
|
|
signal inclk1_tmp : std_logic := '0';
|
3335 |
|
|
|
3336 |
|
|
signal ext_fbk_cntr_high : integer := 0;
|
3337 |
|
|
signal ext_fbk_cntr_low : integer := 0;
|
3338 |
|
|
signal ext_fbk_cntr_ph : integer := 0;
|
3339 |
|
|
signal ext_fbk_cntr_initial : integer := 1;
|
3340 |
|
|
signal ext_fbk_cntr : string(1 to 2) := "c0";
|
3341 |
|
|
signal ext_fbk_cntr_mode : string(1 to 6) := "bypass";
|
3342 |
|
|
signal ext_fbk_cntr_index : integer := 0;
|
3343 |
|
|
|
3344 |
|
|
signal enable0_tmp : std_logic := '0';
|
3345 |
|
|
signal enable1_tmp : std_logic := '0';
|
3346 |
|
|
signal reset_low : std_logic := '0';
|
3347 |
|
|
|
3348 |
|
|
signal scandataout_tmp : std_logic := '0';
|
3349 |
|
|
signal scandone_tmp : std_logic := '0';
|
3350 |
|
|
|
3351 |
|
|
signal sig_refclk_period : time := (inclk0_input_frequency * 1 ps) * n;
|
3352 |
|
|
|
3353 |
|
|
signal schedule_vco : std_logic := '0';
|
3354 |
|
|
|
3355 |
|
|
signal areset_ena_sig : std_logic := '0';
|
3356 |
|
|
signal pll_in_test_mode : boolean := false;
|
3357 |
|
|
|
3358 |
|
|
signal inclk_c_from_vco : std_logic_array(0 to 5);
|
3359 |
|
|
|
3360 |
|
|
signal inclk_m_from_vco : std_logic;
|
3361 |
|
|
signal inclk_sclkout0_from_vco : std_logic;
|
3362 |
|
|
signal inclk_sclkout1_from_vco : std_logic;
|
3363 |
|
|
|
3364 |
|
|
--signal tap0_is_active : boolean := true;
|
3365 |
|
|
signal sig_quiet_time : time := 0 ps;
|
3366 |
|
|
signal sig_slowest_clk_old : time := 0 ps;
|
3367 |
|
|
signal sig_slowest_clk_new : time := 0 ps;
|
3368 |
|
|
signal sig_m_val_tmp : int_array(0 to 1) := (OTHERS => 1);
|
3369 |
|
|
|
3370 |
|
|
COMPONENT cycloneii_m_cntr
|
3371 |
|
|
PORT (
|
3372 |
|
|
clk : IN std_logic;
|
3373 |
|
|
reset : IN std_logic := '0';
|
3374 |
|
|
cout : OUT std_logic;
|
3375 |
|
|
initial_value : IN integer := 1;
|
3376 |
|
|
modulus : IN integer := 1;
|
3377 |
|
|
time_delay : IN integer := 0
|
3378 |
|
|
);
|
3379 |
|
|
END COMPONENT;
|
3380 |
|
|
|
3381 |
|
|
COMPONENT cycloneii_n_cntr
|
3382 |
|
|
PORT (
|
3383 |
|
|
clk : IN std_logic;
|
3384 |
|
|
reset : IN std_logic := '0';
|
3385 |
|
|
cout : OUT std_logic;
|
3386 |
|
|
initial_value : IN integer := 1;
|
3387 |
|
|
modulus : IN integer := 1;
|
3388 |
|
|
time_delay : IN integer := 0
|
3389 |
|
|
);
|
3390 |
|
|
END COMPONENT;
|
3391 |
|
|
|
3392 |
|
|
COMPONENT cycloneii_scale_cntr
|
3393 |
|
|
PORT (
|
3394 |
|
|
clk : IN std_logic;
|
3395 |
|
|
reset : IN std_logic := '0';
|
3396 |
|
|
cout : OUT std_logic;
|
3397 |
|
|
initial : IN integer := 1;
|
3398 |
|
|
high : IN integer := 1;
|
3399 |
|
|
low : IN integer := 1;
|
3400 |
|
|
mode : IN string := "bypass";
|
3401 |
|
|
ph_tap : IN integer := 0
|
3402 |
|
|
);
|
3403 |
|
|
END COMPONENT;
|
3404 |
|
|
|
3405 |
|
|
COMPONENT cycloneii_dffe
|
3406 |
|
|
GENERIC(
|
3407 |
|
|
TimingChecksOn: Boolean := true;
|
3408 |
|
|
InstancePath: STRING := "*";
|
3409 |
|
|
XOn: Boolean := DefGlitchXOn;
|
3410 |
|
|
MsgOn: Boolean := DefGlitchMsgOn;
|
3411 |
|
|
MsgOnChecks: Boolean := DefMsgOnChecks;
|
3412 |
|
|
XOnChecks: Boolean := DefXOnChecks;
|
3413 |
|
|
tpd_PRN_Q_negedge : VitalDelayType01 := DefPropDelay01;
|
3414 |
|
|
tpd_CLRN_Q_negedge : VitalDelayType01 := DefPropDelay01;
|
3415 |
|
|
tpd_CLK_Q_posedge : VitalDelayType01 := DefPropDelay01;
|
3416 |
|
|
tpd_ENA_Q_posedge : VitalDelayType01 := DefPropDelay01;
|
3417 |
|
|
tsetup_D_CLK_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
3418 |
|
|
tsetup_D_CLK_noedge_negedge : VitalDelayType := DefSetupHoldCnst;
|
3419 |
|
|
tsetup_ENA_CLK_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
3420 |
|
|
thold_D_CLK_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
3421 |
|
|
thold_D_CLK_noedge_negedge : VitalDelayType := DefSetupHoldCnst;
|
3422 |
|
|
thold_ENA_CLK_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
3423 |
|
|
tipd_D : VitalDelayType01 := DefPropDelay01;
|
3424 |
|
|
tipd_CLRN : VitalDelayType01 := DefPropDelay01;
|
3425 |
|
|
tipd_PRN : VitalDelayType01 := DefPropDelay01;
|
3426 |
|
|
tipd_CLK : VitalDelayType01 := DefPropDelay01;
|
3427 |
|
|
tipd_ENA : VitalDelayType01 := DefPropDelay01);
|
3428 |
|
|
|
3429 |
|
|
PORT(
|
3430 |
|
|
Q : out STD_LOGIC := '0';
|
3431 |
|
|
D : in STD_LOGIC := '1';
|
3432 |
|
|
CLRN : in STD_LOGIC := '1';
|
3433 |
|
|
PRN : in STD_LOGIC := '1';
|
3434 |
|
|
CLK : in STD_LOGIC := '0';
|
3435 |
|
|
ENA : in STD_LOGIC := '1');
|
3436 |
|
|
END COMPONENT;
|
3437 |
|
|
|
3438 |
|
|
COMPONENT cycloneii_pll_reg
|
3439 |
|
|
PORT(
|
3440 |
|
|
Q : out STD_LOGIC := '0';
|
3441 |
|
|
D : in STD_LOGIC := '1';
|
3442 |
|
|
CLRN : in STD_LOGIC := '1';
|
3443 |
|
|
PRN : in STD_LOGIC := '1';
|
3444 |
|
|
CLK : in STD_LOGIC := '0';
|
3445 |
|
|
ENA : in STD_LOGIC := '1');
|
3446 |
|
|
END COMPONENT;
|
3447 |
|
|
|
3448 |
|
|
begin
|
3449 |
|
|
|
3450 |
|
|
----------------------
|
3451 |
|
|
-- INPUT PATH DELAYs
|
3452 |
|
|
----------------------
|
3453 |
|
|
WireDelay : block
|
3454 |
|
|
begin
|
3455 |
|
|
VitalWireDelay (inclk0_ipd, inclk(0), tipd_inclk(0));
|
3456 |
|
|
VitalWireDelay (inclk1_ipd, inclk(1), tipd_inclk(1));
|
3457 |
|
|
VitalWireDelay (areset_ipd, areset, tipd_areset);
|
3458 |
|
|
VitalWireDelay (ena_ipd, ena, tipd_ena);
|
3459 |
|
|
VitalWireDelay (pfdena_ipd, pfdena, tipd_pfdena);
|
3460 |
|
|
VitalWireDelay (clkswitch_ipd, clkswitch, tipd_clkswitch);
|
3461 |
|
|
end block;
|
3462 |
|
|
fbin_ipd <= '0';
|
3463 |
|
|
scanclk_ipd <= '0';
|
3464 |
|
|
scanread_ipd <= '0';
|
3465 |
|
|
scandata_ipd <= '0';
|
3466 |
|
|
scanwrite_ipd <= '0';
|
3467 |
|
|
|
3468 |
|
|
|
3469 |
|
|
inclk_m <= refclk when m_test_source = 1 else
|
3470 |
|
|
'0' when m_test_source = 2 else
|
3471 |
|
|
'0' when m_test_source = 3 else
|
3472 |
|
|
clk0_tmp when operation_mode = "external_feedback" and feedback_source = "clk0" else
|
3473 |
|
|
clk1_tmp when operation_mode = "external_feedback" and feedback_source = "clk1" else
|
3474 |
|
|
clk2_tmp when operation_mode = "external_feedback" and feedback_source = "clk2" else
|
3475 |
|
|
clk3_tmp when operation_mode = "external_feedback" and feedback_source = "clk3" else
|
3476 |
|
|
clk4_tmp when operation_mode = "external_feedback" and feedback_source = "clk4" else
|
3477 |
|
|
clk5_tmp when operation_mode = "external_feedback" and feedback_source = "clk5" else
|
3478 |
|
|
inclk_m_from_vco;
|
3479 |
|
|
|
3480 |
|
|
ext_fbk_cntr_high <= c_high_val(ext_fbk_cntr_index);
|
3481 |
|
|
ext_fbk_cntr_low <= c_low_val(ext_fbk_cntr_index);
|
3482 |
|
|
ext_fbk_cntr_ph <= c_ph_val(ext_fbk_cntr_index);
|
3483 |
|
|
ext_fbk_cntr_initial <= c_initial_val(ext_fbk_cntr_index);
|
3484 |
|
|
ext_fbk_cntr_mode <= c_mode_val(ext_fbk_cntr_index);
|
3485 |
|
|
|
3486 |
|
|
areset_ena_sig <= areset_ipd or (not ena_ipd) or sig_stop_vco;
|
3487 |
|
|
|
3488 |
|
|
|
3489 |
|
|
pll_in_test_mode <= true when m_test_source = 1 or c0_test_source = 1 or
|
3490 |
|
|
c0_test_source = 2 or c1_test_source = 1 or
|
3491 |
|
|
c1_test_source = 2 or c2_test_source = 1 or
|
3492 |
|
|
c2_test_source = 2 else
|
3493 |
|
|
false;
|
3494 |
|
|
|
3495 |
|
|
m1 : cycloneii_m_cntr
|
3496 |
|
|
port map ( clk => inclk_m,
|
3497 |
|
|
reset => areset_ena_sig,
|
3498 |
|
|
cout => fbclk,
|
3499 |
|
|
initial_value => m_initial_val,
|
3500 |
|
|
modulus => m_val(0),
|
3501 |
|
|
time_delay => m_delay
|
3502 |
|
|
);
|
3503 |
|
|
|
3504 |
|
|
-- add delta delay to inclk1 to ensure inclk0 and inclk1 are processed
|
3505 |
|
|
-- in different simulation deltas.
|
3506 |
|
|
inclk1_tmp <= inclk1_ipd;
|
3507 |
|
|
|
3508 |
|
|
process (inclk0_ipd, inclk1_tmp, clkswitch_ipd)
|
3509 |
|
|
variable input_value : std_logic := '0';
|
3510 |
|
|
variable current_clock : integer := 0;
|
3511 |
|
|
variable clk0_count, clk1_count : integer := 0;
|
3512 |
|
|
variable clk0_is_bad, clk1_is_bad : std_logic := '0';
|
3513 |
|
|
variable primary_clk_is_bad : boolean := false;
|
3514 |
|
|
variable current_clk_is_bad : boolean := false;
|
3515 |
|
|
variable got_curr_clk_falling_edge_after_clkswitch : boolean := false;
|
3516 |
|
|
variable switch_over_count : integer := 0;
|
3517 |
|
|
variable active_clock : std_logic := '0';
|
3518 |
|
|
variable external_switch : boolean := false;
|
3519 |
|
|
begin
|
3520 |
|
|
if (now = 0 ps) then
|
3521 |
|
|
if (switch_over_type = "manual" and clkswitch_ipd = '1') then
|
3522 |
|
|
current_clock := 1;
|
3523 |
|
|
active_clock := '1';
|
3524 |
|
|
end if;
|
3525 |
|
|
end if;
|
3526 |
|
|
if (clkswitch_ipd'event and clkswitch_ipd = '1' and switch_over_type = "auto") then
|
3527 |
|
|
external_switch := true;
|
3528 |
|
|
elsif (switch_over_type = "manual") then
|
3529 |
|
|
if (clkswitch_ipd'event and clkswitch_ipd = '1') then
|
3530 |
|
|
current_clock := 1;
|
3531 |
|
|
active_clock := '1';
|
3532 |
|
|
clkin <= transport inclk1_tmp;
|
3533 |
|
|
elsif (clkswitch_ipd'event and clkswitch_ipd = '0') then
|
3534 |
|
|
current_clock := 0;
|
3535 |
|
|
active_clock := '0';
|
3536 |
|
|
clkin <= transport inclk0_ipd;
|
3537 |
|
|
end if;
|
3538 |
|
|
end if;
|
3539 |
|
|
-- save the current inclk event value
|
3540 |
|
|
if (inclk0_ipd'event) then
|
3541 |
|
|
input_value := inclk0_ipd;
|
3542 |
|
|
elsif (inclk1_tmp'event) then
|
3543 |
|
|
input_value := inclk1_tmp;
|
3544 |
|
|
end if;
|
3545 |
|
|
|
3546 |
|
|
-- check if either input clk is bad
|
3547 |
|
|
if (inclk0_ipd'event and inclk0_ipd = '1') then
|
3548 |
|
|
clk0_count := clk0_count + 1;
|
3549 |
|
|
clk0_is_bad := '0';
|
3550 |
|
|
clk1_count := 0;
|
3551 |
|
|
if (clk0_count > 2) then
|
3552 |
|
|
-- no event on other clk for 2 cycles
|
3553 |
|
|
clk1_is_bad := '1';
|
3554 |
|
|
if (current_clock = 1) then
|
3555 |
|
|
current_clk_is_bad := true;
|
3556 |
|
|
end if;
|
3557 |
|
|
end if;
|
3558 |
|
|
end if;
|
3559 |
|
|
if (inclk1_tmp'event and inclk1_tmp = '1') then
|
3560 |
|
|
clk1_count := clk1_count + 1;
|
3561 |
|
|
clk1_is_bad := '0';
|
3562 |
|
|
clk0_count := 0;
|
3563 |
|
|
if (clk1_count > 2) then
|
3564 |
|
|
-- no event on other clk for 2 cycles
|
3565 |
|
|
clk0_is_bad := '1';
|
3566 |
|
|
if (current_clock = 0) then
|
3567 |
|
|
current_clk_is_bad := true;
|
3568 |
|
|
end if;
|
3569 |
|
|
end if;
|
3570 |
|
|
end if;
|
3571 |
|
|
|
3572 |
|
|
-- check if the bad clk is the primary clock
|
3573 |
|
|
if (clk0_is_bad = '1') then
|
3574 |
|
|
primary_clk_is_bad := true;
|
3575 |
|
|
else
|
3576 |
|
|
primary_clk_is_bad := false;
|
3577 |
|
|
end if;
|
3578 |
|
|
|
3579 |
|
|
-- actual switching
|
3580 |
|
|
if (inclk0_ipd'event and current_clock = 0) then
|
3581 |
|
|
if (external_switch) then
|
3582 |
|
|
if (not got_curr_clk_falling_edge_after_clkswitch) then
|
3583 |
|
|
if (inclk0_ipd = '0') then
|
3584 |
|
|
got_curr_clk_falling_edge_after_clkswitch := true;
|
3585 |
|
|
end if;
|
3586 |
|
|
clkin <= transport inclk0_ipd;
|
3587 |
|
|
end if;
|
3588 |
|
|
else
|
3589 |
|
|
clkin <= transport inclk0_ipd;
|
3590 |
|
|
end if;
|
3591 |
|
|
elsif (inclk1_tmp'event and current_clock = 1) then
|
3592 |
|
|
if (external_switch) then
|
3593 |
|
|
if (not got_curr_clk_falling_edge_after_clkswitch) then
|
3594 |
|
|
if (inclk1_tmp = '0') then
|
3595 |
|
|
got_curr_clk_falling_edge_after_clkswitch := true;
|
3596 |
|
|
end if;
|
3597 |
|
|
clkin <= transport inclk1_tmp;
|
3598 |
|
|
end if;
|
3599 |
|
|
else
|
3600 |
|
|
clkin <= transport inclk1_tmp;
|
3601 |
|
|
end if;
|
3602 |
|
|
else
|
3603 |
|
|
if (input_value = '1' and switch_over_on_lossclk = "on" and enable_switch_over_counter = "on" and primary_clk_is_bad) then
|
3604 |
|
|
switch_over_count := switch_over_count + 1;
|
3605 |
|
|
end if;
|
3606 |
|
|
if (input_value = '0') then
|
3607 |
|
|
if (external_switch and (got_curr_clk_falling_edge_after_clkswitch or current_clk_is_bad)) or (switch_over_on_lossclk = "on" and primary_clk_is_bad and clkswitch_ipd /= '1' and (enable_switch_over_counter = "off" or switch_over_count = switch_over_counter)) then
|
3608 |
|
|
got_curr_clk_falling_edge_after_clkswitch := false;
|
3609 |
|
|
if (current_clock = 0) then
|
3610 |
|
|
current_clock := 1;
|
3611 |
|
|
else
|
3612 |
|
|
current_clock := 0;
|
3613 |
|
|
end if;
|
3614 |
|
|
active_clock := not active_clock;
|
3615 |
|
|
switch_over_count := 0;
|
3616 |
|
|
external_switch := false;
|
3617 |
|
|
current_clk_is_bad := false;
|
3618 |
|
|
end if;
|
3619 |
|
|
|
3620 |
|
|
end if;
|
3621 |
|
|
end if;
|
3622 |
|
|
|
3623 |
|
|
-- schedule outputs
|
3624 |
|
|
if (switch_over_on_lossclk = "on" and clkswitch_ipd /= '1') then
|
3625 |
|
|
if (primary_clk_is_bad) then
|
3626 |
|
|
-- assert clkloss
|
3627 |
|
|
else
|
3628 |
|
|
end if;
|
3629 |
|
|
else
|
3630 |
|
|
end if;
|
3631 |
|
|
|
3632 |
|
|
end process;
|
3633 |
|
|
|
3634 |
|
|
process (inclk_sclkout0_from_vco)
|
3635 |
|
|
begin
|
3636 |
|
|
sclkout0_tmp <= inclk_sclkout0_from_vco;
|
3637 |
|
|
end process;
|
3638 |
|
|
|
3639 |
|
|
process (inclk_sclkout1_from_vco)
|
3640 |
|
|
begin
|
3641 |
|
|
sclkout1_tmp <= inclk_sclkout1_from_vco;
|
3642 |
|
|
end process;
|
3643 |
|
|
|
3644 |
|
|
n1 : cycloneii_n_cntr
|
3645 |
|
|
port map (
|
3646 |
|
|
clk => clkin,
|
3647 |
|
|
reset => areset_ipd,
|
3648 |
|
|
cout => refclk,
|
3649 |
|
|
initial_value => n_val(0),
|
3650 |
|
|
modulus => n_val(0));
|
3651 |
|
|
|
3652 |
|
|
inclk_c0 <= refclk when c0_test_source = 1 else
|
3653 |
|
|
fbclk when c0_test_source = 2 else
|
3654 |
|
|
'0' when c0_test_source = 3 else
|
3655 |
|
|
inclk_c_from_vco(0);
|
3656 |
|
|
|
3657 |
|
|
c0 : cycloneii_scale_cntr
|
3658 |
|
|
port map (
|
3659 |
|
|
clk => inclk_c0,
|
3660 |
|
|
reset => areset_ena_sig,
|
3661 |
|
|
cout => c_clk(0),
|
3662 |
|
|
initial => c_initial_val(0),
|
3663 |
|
|
high => c_high_val(0),
|
3664 |
|
|
low => c_low_val(0),
|
3665 |
|
|
mode => c_mode_val(0),
|
3666 |
|
|
ph_tap => c_ph_val(0));
|
3667 |
|
|
|
3668 |
|
|
inclk_c1 <= refclk when c1_test_source = 1 else
|
3669 |
|
|
fbclk when c1_test_source = 2 else
|
3670 |
|
|
'0' when c1_test_source = 3 else
|
3671 |
|
|
c_clk(0) when c1_use_casc_in = "on" else
|
3672 |
|
|
inclk_c_from_vco(1);
|
3673 |
|
|
|
3674 |
|
|
c1 : cycloneii_scale_cntr
|
3675 |
|
|
port map (
|
3676 |
|
|
clk => inclk_c1,
|
3677 |
|
|
reset => areset_ena_sig,
|
3678 |
|
|
cout => c_clk(1),
|
3679 |
|
|
initial => c_initial_val(1),
|
3680 |
|
|
high => c_high_val(1),
|
3681 |
|
|
low => c_low_val(1),
|
3682 |
|
|
mode => c_mode_val(1),
|
3683 |
|
|
ph_tap => c_ph_val(1));
|
3684 |
|
|
|
3685 |
|
|
inclk_c2 <= refclk when c2_test_source = 1 else
|
3686 |
|
|
fbclk when c2_test_source = 2 else
|
3687 |
|
|
'0' when c2_test_source = 3 else
|
3688 |
|
|
c_clk(1) when c2_use_casc_in = "on" else
|
3689 |
|
|
inclk_c_from_vco(2);
|
3690 |
|
|
|
3691 |
|
|
c2 : cycloneii_scale_cntr
|
3692 |
|
|
port map (
|
3693 |
|
|
clk => inclk_c2,
|
3694 |
|
|
reset => areset_ena_sig,
|
3695 |
|
|
cout => c_clk(2),
|
3696 |
|
|
initial => c_initial_val(2),
|
3697 |
|
|
high => c_high_val(2),
|
3698 |
|
|
low => c_low_val(2),
|
3699 |
|
|
mode => c_mode_val(2),
|
3700 |
|
|
ph_tap => c_ph_val(2));
|
3701 |
|
|
|
3702 |
|
|
|
3703 |
|
|
inclk_c3 <= clkin when c3_test_source = 0 else
|
3704 |
|
|
c_clk(2) when c3_use_casc_in = "on" else
|
3705 |
|
|
inclk_c_from_vco(3);
|
3706 |
|
|
c3 : cycloneii_scale_cntr
|
3707 |
|
|
port map (
|
3708 |
|
|
clk => inclk_c3,
|
3709 |
|
|
reset => areset_ena_sig,
|
3710 |
|
|
cout => c_clk(3),
|
3711 |
|
|
initial => c_initial_val(3),
|
3712 |
|
|
high => c_high_val(3),
|
3713 |
|
|
low => c_low_val(3),
|
3714 |
|
|
mode => c_mode_val(3),
|
3715 |
|
|
ph_tap => c_ph_val(3));
|
3716 |
|
|
|
3717 |
|
|
inclk_c4 <= '0' when (pll_type = "fast") else
|
3718 |
|
|
clkin when (c4_test_source = 0) else
|
3719 |
|
|
c_clk(3) when (c4_use_casc_in = "on") else
|
3720 |
|
|
inclk_c_from_vco(4);
|
3721 |
|
|
c4 : cycloneii_scale_cntr
|
3722 |
|
|
port map (
|
3723 |
|
|
clk => inclk_c4,
|
3724 |
|
|
reset => areset_ena_sig,
|
3725 |
|
|
cout => c_clk(4),
|
3726 |
|
|
initial => c_initial_val(4),
|
3727 |
|
|
high => c_high_val(4),
|
3728 |
|
|
low => c_low_val(4),
|
3729 |
|
|
mode => c_mode_val(4),
|
3730 |
|
|
ph_tap => c_ph_val(4));
|
3731 |
|
|
|
3732 |
|
|
inclk_c5 <= '0' when (pll_type = "fast") else
|
3733 |
|
|
clkin when c5_test_source = 0 else
|
3734 |
|
|
c_clk(4) when c5_use_casc_in = "on" else
|
3735 |
|
|
inclk_c_from_vco(5);
|
3736 |
|
|
c5 : cycloneii_scale_cntr
|
3737 |
|
|
port map (
|
3738 |
|
|
clk => inclk_c5,
|
3739 |
|
|
reset => areset_ena_sig,
|
3740 |
|
|
cout => c_clk(5),
|
3741 |
|
|
initial => c_initial_val(5),
|
3742 |
|
|
high => c_high_val(5),
|
3743 |
|
|
low => c_low_val(5),
|
3744 |
|
|
mode => c_mode_val(5),
|
3745 |
|
|
ph_tap => c_ph_val(5));
|
3746 |
|
|
|
3747 |
|
|
inclk_c0_dly1 <= inclk_c0 when (pll_type = "fast" or pll_type = "lvds")
|
3748 |
|
|
else '0';
|
3749 |
|
|
inclk_c0_dly2 <= inclk_c0_dly1;
|
3750 |
|
|
inclk_c0_dly3 <= inclk_c0_dly2;
|
3751 |
|
|
inclk_c0_dly4 <= inclk_c0_dly3;
|
3752 |
|
|
inclk_c0_dly5 <= inclk_c0_dly4;
|
3753 |
|
|
inclk_c0_dly6 <= inclk_c0_dly5;
|
3754 |
|
|
|
3755 |
|
|
inclk_c1_dly1 <= inclk_c1 when (pll_type = "fast" or pll_type = "lvds")
|
3756 |
|
|
else '0';
|
3757 |
|
|
inclk_c1_dly2 <= inclk_c1_dly1;
|
3758 |
|
|
inclk_c1_dly3 <= inclk_c1_dly2;
|
3759 |
|
|
inclk_c1_dly4 <= inclk_c1_dly3;
|
3760 |
|
|
inclk_c1_dly5 <= inclk_c1_dly4;
|
3761 |
|
|
inclk_c1_dly6 <= inclk_c1_dly5;
|
3762 |
|
|
|
3763 |
|
|
process(inclk_c0_dly6, inclk_c1_dly6, areset_ipd, ena_ipd, sig_stop_vco)
|
3764 |
|
|
variable c0_got_first_rising_edge : boolean := false;
|
3765 |
|
|
variable c0_count : integer := 2;
|
3766 |
|
|
variable c0_initial_count : integer := 1;
|
3767 |
|
|
variable c0_tmp, c1_tmp : std_logic := '0';
|
3768 |
|
|
variable c1_got_first_rising_edge : boolean := false;
|
3769 |
|
|
variable c1_count : integer := 2;
|
3770 |
|
|
variable c1_initial_count : integer := 1;
|
3771 |
|
|
begin
|
3772 |
|
|
if (areset_ipd = '1' or ena_ipd = '0' or sig_stop_vco = '1') then
|
3773 |
|
|
c0_count := 2;
|
3774 |
|
|
c1_count := 2;
|
3775 |
|
|
c0_initial_count := 1;
|
3776 |
|
|
c1_initial_count := 1;
|
3777 |
|
|
c0_got_first_rising_edge := false;
|
3778 |
|
|
c1_got_first_rising_edge := false;
|
3779 |
|
|
else
|
3780 |
|
|
if (not c0_got_first_rising_edge) then
|
3781 |
|
|
if (inclk_c0_dly6'event and inclk_c0_dly6 = '1') then
|
3782 |
|
|
if (c0_initial_count = c_initial_val(0)) then
|
3783 |
|
|
c0_got_first_rising_edge := true;
|
3784 |
|
|
else
|
3785 |
|
|
c0_initial_count := c0_initial_count + 1;
|
3786 |
|
|
end if;
|
3787 |
|
|
end if;
|
3788 |
|
|
elsif (inclk_c0_dly6'event) then
|
3789 |
|
|
c0_count := c0_count + 1;
|
3790 |
|
|
if (c0_count = (c_high_val(0) + c_low_val(0)) * 2) then
|
3791 |
|
|
c0_count := 1;
|
3792 |
|
|
end if;
|
3793 |
|
|
end if;
|
3794 |
|
|
if (inclk_c0_dly6'event and inclk_c0_dly6 = '0') then
|
3795 |
|
|
if (c0_count = 1) then
|
3796 |
|
|
c0_tmp := '1';
|
3797 |
|
|
c0_got_first_rising_edge := false;
|
3798 |
|
|
else
|
3799 |
|
|
c0_tmp := '0';
|
3800 |
|
|
end if;
|
3801 |
|
|
end if;
|
3802 |
|
|
|
3803 |
|
|
if (not c1_got_first_rising_edge) then
|
3804 |
|
|
if (inclk_c1_dly6'event and inclk_c1_dly6 = '1') then
|
3805 |
|
|
if (c1_initial_count = c_initial_val(1)) then
|
3806 |
|
|
c1_got_first_rising_edge := true;
|
3807 |
|
|
else
|
3808 |
|
|
c1_initial_count := c1_initial_count + 1;
|
3809 |
|
|
end if;
|
3810 |
|
|
end if;
|
3811 |
|
|
elsif (inclk_c1_dly6'event) then
|
3812 |
|
|
c1_count := c1_count + 1;
|
3813 |
|
|
if (c1_count = (c_high_val(1) + c_low_val(1)) * 2) then
|
3814 |
|
|
c1_count := 1;
|
3815 |
|
|
end if;
|
3816 |
|
|
end if;
|
3817 |
|
|
if (inclk_c1_dly6'event and inclk_c1_dly6 = '0') then
|
3818 |
|
|
if (c1_count = 1) then
|
3819 |
|
|
c1_tmp := '1';
|
3820 |
|
|
c1_got_first_rising_edge := false;
|
3821 |
|
|
else
|
3822 |
|
|
c1_tmp := '0';
|
3823 |
|
|
end if;
|
3824 |
|
|
end if;
|
3825 |
|
|
end if;
|
3826 |
|
|
|
3827 |
|
|
if (enable0_counter = "c0") then
|
3828 |
|
|
enable0_tmp <= c0_tmp;
|
3829 |
|
|
elsif (enable0_counter = "c1") then
|
3830 |
|
|
enable0_tmp <= c1_tmp;
|
3831 |
|
|
else
|
3832 |
|
|
enable0_tmp <= '0';
|
3833 |
|
|
end if;
|
3834 |
|
|
|
3835 |
|
|
if (enable1_counter = "c0") then
|
3836 |
|
|
enable1_tmp <= c0_tmp;
|
3837 |
|
|
elsif (enable1_counter = "c1") then
|
3838 |
|
|
enable1_tmp <= c1_tmp;
|
3839 |
|
|
else
|
3840 |
|
|
enable1_tmp <= '0';
|
3841 |
|
|
end if;
|
3842 |
|
|
|
3843 |
|
|
end process;
|
3844 |
|
|
|
3845 |
|
|
glocked_cntr : process(clkin, ena_ipd, areset_ipd)
|
3846 |
|
|
variable count : integer := 0;
|
3847 |
|
|
variable output : std_logic := '0';
|
3848 |
|
|
begin
|
3849 |
|
|
if (areset_ipd = '1') then
|
3850 |
|
|
count := 0;
|
3851 |
|
|
output := '0';
|
3852 |
|
|
elsif (clkin'event and clkin = '1') then
|
3853 |
|
|
if (ena_ipd = '1') then
|
3854 |
|
|
count := count + 1;
|
3855 |
|
|
if (sim_gate_lock_device_behavior = "on") then
|
3856 |
|
|
if (count = gate_lock_counter) then
|
3857 |
|
|
output := '1';
|
3858 |
|
|
end if;
|
3859 |
|
|
elsif (count = GATE_LOCK_CYCLES) then
|
3860 |
|
|
output := '1';
|
3861 |
|
|
end if;
|
3862 |
|
|
end if;
|
3863 |
|
|
end if;
|
3864 |
|
|
gate_locked <= output;
|
3865 |
|
|
end process;
|
3866 |
|
|
|
3867 |
|
|
locked <= gate_locked and lock when gate_lock_signal = "yes" else
|
3868 |
|
|
lock;
|
3869 |
|
|
|
3870 |
|
|
|
3871 |
|
|
process (scandone_tmp)
|
3872 |
|
|
variable buf : line;
|
3873 |
|
|
begin
|
3874 |
|
|
if (scandone_tmp'event and scandone_tmp = '1') then
|
3875 |
|
|
if (reconfig_err = false) then
|
3876 |
|
|
ASSERT false REPORT family_name & " PLL Reprogramming completed with the following values (Values in parantheses indicate values before reprogramming) :" severity note;
|
3877 |
|
|
write (buf, string'(" N modulus = "));
|
3878 |
|
|
write (buf, n_val(0));
|
3879 |
|
|
write (buf, string'(" ( "));
|
3880 |
|
|
write (buf, n_val_old(0));
|
3881 |
|
|
write (buf, string'(" )"));
|
3882 |
|
|
writeline (output, buf);
|
3883 |
|
|
|
3884 |
|
|
write (buf, string'(" M modulus = "));
|
3885 |
|
|
write (buf, m_val(0));
|
3886 |
|
|
write (buf, string'(" ( "));
|
3887 |
|
|
write (buf, m_val_old(0));
|
3888 |
|
|
write (buf, string'(" )"));
|
3889 |
|
|
writeline (output, buf);
|
3890 |
|
|
|
3891 |
|
|
write (buf, string'(" M ph_tap = "));
|
3892 |
|
|
write (buf, m_ph_val);
|
3893 |
|
|
write (buf, string'(" ( "));
|
3894 |
|
|
write (buf, m_ph_val_old);
|
3895 |
|
|
write (buf, string'(" )"));
|
3896 |
|
|
writeline (output, buf);
|
3897 |
|
|
|
3898 |
|
|
if (ss > 0) then
|
3899 |
|
|
write (buf, string'(" M2 modulus = "));
|
3900 |
|
|
write (buf, m_val(1));
|
3901 |
|
|
write (buf, string'(" ( "));
|
3902 |
|
|
write (buf, m_val_old(1));
|
3903 |
|
|
write (buf, string'(" )"));
|
3904 |
|
|
writeline (output, buf);
|
3905 |
|
|
|
3906 |
|
|
write (buf, string'(" N2 modulus = "));
|
3907 |
|
|
write (buf, n_val(1));
|
3908 |
|
|
write (buf, string'(" ( "));
|
3909 |
|
|
write (buf, n_val_old(1));
|
3910 |
|
|
write (buf, string'(" )"));
|
3911 |
|
|
writeline (output, buf);
|
3912 |
|
|
end if;
|
3913 |
|
|
|
3914 |
|
|
for i in 0 to (num_output_cntrs-1) loop
|
3915 |
|
|
write (buf, cntrs(i));
|
3916 |
|
|
write (buf, string'(" : high = "));
|
3917 |
|
|
write (buf, c_high_val(i));
|
3918 |
|
|
write (buf, string'(" ("));
|
3919 |
|
|
write (buf, c_high_val_old(i));
|
3920 |
|
|
write (buf, string'(") "));
|
3921 |
|
|
write (buf, string'(" , low = "));
|
3922 |
|
|
write (buf, sig_c_low_val_tmp(i));
|
3923 |
|
|
write (buf, string'(" ("));
|
3924 |
|
|
write (buf, c_low_val_old(i));
|
3925 |
|
|
write (buf, string'(") "));
|
3926 |
|
|
write (buf, string'(" , mode = "));
|
3927 |
|
|
write (buf, c_mode_val(i));
|
3928 |
|
|
write (buf, string'(" ("));
|
3929 |
|
|
write (buf, c_mode_val_old(i));
|
3930 |
|
|
write (buf, string'(") "));
|
3931 |
|
|
write (buf, string'(" , phase tap = "));
|
3932 |
|
|
write (buf, c_ph_val(i));
|
3933 |
|
|
write (buf, string'(" ("));
|
3934 |
|
|
write (buf, c_ph_val_old(i));
|
3935 |
|
|
write (buf, string'(") "));
|
3936 |
|
|
writeline(output, buf);
|
3937 |
|
|
end loop;
|
3938 |
|
|
|
3939 |
|
|
write (buf, string'(" Charge Pump Current (uA) = "));
|
3940 |
|
|
write (buf, cp_curr_val);
|
3941 |
|
|
write (buf, string'(" ( "));
|
3942 |
|
|
write (buf, cp_curr_old);
|
3943 |
|
|
write (buf, string'(" ) "));
|
3944 |
|
|
writeline (output, buf);
|
3945 |
|
|
|
3946 |
|
|
write (buf, string'(" Loop Filter Capacitor (pF) = "));
|
3947 |
|
|
write (buf, lfc_val);
|
3948 |
|
|
write (buf, string'(" ( "));
|
3949 |
|
|
write (buf, lfc_old);
|
3950 |
|
|
write (buf, string'(" ) "));
|
3951 |
|
|
writeline (output, buf);
|
3952 |
|
|
|
3953 |
|
|
write (buf, string'(" Loop Filter Resistor (Kohm) = "));
|
3954 |
|
|
write (buf, lfr_val);
|
3955 |
|
|
write (buf, string'(" ( "));
|
3956 |
|
|
write (buf, lfr_old);
|
3957 |
|
|
write (buf, string'(" ) "));
|
3958 |
|
|
writeline (output, buf);
|
3959 |
|
|
|
3960 |
|
|
else ASSERT false REPORT "Errors were encountered during PLL reprogramming. Please refer to error/warning messages above." severity warning;
|
3961 |
|
|
end if;
|
3962 |
|
|
end if;
|
3963 |
|
|
end process;
|
3964 |
|
|
|
3965 |
|
|
process (scanwrite_enabled, c_clk(0), c_clk(1), c_clk(2), c_clk(3), c_clk(4), c_clk(5), vco_tap, fbclk, scanclk_ipd, gated_scanclk)
|
3966 |
|
|
variable init : boolean := true;
|
3967 |
|
|
variable low, high : std_logic_vector(7 downto 0);
|
3968 |
|
|
variable low_fast, high_fast : std_logic_vector(3 downto 0);
|
3969 |
|
|
variable mode : string(1 to 6) := "bypass";
|
3970 |
|
|
variable is_error : boolean := false;
|
3971 |
|
|
variable m_tmp, n_tmp : std_logic_vector(8 downto 0);
|
3972 |
|
|
variable n_fast : std_logic_vector(1 downto 0);
|
3973 |
|
|
variable c_high_val_tmp : int_array(0 to 5) := (OTHERS => 1);
|
3974 |
|
|
variable c_low_val_tmp : int_array(0 to 5) := (OTHERS => 1);
|
3975 |
|
|
variable c_ph_val_tmp : int_array(0 to 5) := (OTHERS => 0);
|
3976 |
|
|
variable c_mode_val_tmp : str_array(0 to 5);
|
3977 |
|
|
variable m_ph_val_tmp : integer := 0;
|
3978 |
|
|
variable m_val_tmp : int_array(0 to 1) := (OTHERS => 1);
|
3979 |
|
|
variable c0_rising_edge_transfer_done : boolean := false;
|
3980 |
|
|
variable c1_rising_edge_transfer_done : boolean := false;
|
3981 |
|
|
variable c2_rising_edge_transfer_done : boolean := false;
|
3982 |
|
|
variable c3_rising_edge_transfer_done : boolean := false;
|
3983 |
|
|
variable c4_rising_edge_transfer_done : boolean := false;
|
3984 |
|
|
variable c5_rising_edge_transfer_done : boolean := false;
|
3985 |
|
|
|
3986 |
|
|
-- variables for scaling of multiply_by and divide_by values
|
3987 |
|
|
variable i_clk0_mult_by : integer := 1;
|
3988 |
|
|
variable i_clk0_div_by : integer := 1;
|
3989 |
|
|
variable i_clk1_mult_by : integer := 1;
|
3990 |
|
|
variable i_clk1_div_by : integer := 1;
|
3991 |
|
|
variable i_clk2_mult_by : integer := 1;
|
3992 |
|
|
variable i_clk2_div_by : integer := 1;
|
3993 |
|
|
variable i_clk3_mult_by : integer := 1;
|
3994 |
|
|
variable i_clk3_div_by : integer := 1;
|
3995 |
|
|
variable i_clk4_mult_by : integer := 1;
|
3996 |
|
|
variable i_clk4_div_by : integer := 1;
|
3997 |
|
|
variable i_clk5_mult_by : integer := 1;
|
3998 |
|
|
variable i_clk5_div_by : integer := 1;
|
3999 |
|
|
variable max_d_value : integer := 1;
|
4000 |
|
|
variable new_multiplier : integer := 1;
|
4001 |
|
|
|
4002 |
|
|
-- internal variables for storing the phase shift number.(used in lvds mode only)
|
4003 |
|
|
variable i_clk0_phase_shift : integer := 1;
|
4004 |
|
|
variable i_clk1_phase_shift : integer := 1;
|
4005 |
|
|
variable i_clk2_phase_shift : integer := 1;
|
4006 |
|
|
|
4007 |
|
|
-- user to advanced variables
|
4008 |
|
|
|
4009 |
|
|
variable max_neg_abs : integer := 0;
|
4010 |
|
|
variable i_m_initial : integer;
|
4011 |
|
|
variable i_m : integer := 1;
|
4012 |
|
|
variable i_n : integer := 1;
|
4013 |
|
|
variable i_m2 : integer;
|
4014 |
|
|
variable i_n2 : integer;
|
4015 |
|
|
variable i_ss : integer;
|
4016 |
|
|
variable i_c_high : int_array(0 to 5);
|
4017 |
|
|
variable i_c_low : int_array(0 to 5);
|
4018 |
|
|
variable i_c_initial : int_array(0 to 5);
|
4019 |
|
|
variable i_c_ph : int_array(0 to 5);
|
4020 |
|
|
variable i_c_mode : str_array(0 to 5);
|
4021 |
|
|
variable i_m_ph : integer;
|
4022 |
|
|
variable output_count : integer;
|
4023 |
|
|
variable new_divisor : integer;
|
4024 |
|
|
|
4025 |
|
|
variable clk0_cntr : string(1 to 2) := "c0";
|
4026 |
|
|
variable clk1_cntr : string(1 to 2) := "c1";
|
4027 |
|
|
variable clk2_cntr : string(1 to 2) := "c2";
|
4028 |
|
|
variable clk3_cntr : string(1 to 2) := "c3";
|
4029 |
|
|
variable clk4_cntr : string(1 to 2) := "c4";
|
4030 |
|
|
variable clk5_cntr : string(1 to 2) := "c5";
|
4031 |
|
|
|
4032 |
|
|
variable fbk_cntr : string(1 to 2);
|
4033 |
|
|
variable fbk_cntr_index : integer;
|
4034 |
|
|
variable start_bit : integer;
|
4035 |
|
|
variable quiet_time : time := 0 ps;
|
4036 |
|
|
variable slowest_clk_old : time := 0 ps;
|
4037 |
|
|
variable slowest_clk_new : time := 0 ps;
|
4038 |
|
|
variable tmp_scan_data : std_logic_vector(173 downto 0) := (OTHERS => '0');
|
4039 |
|
|
variable m_lo, m_hi : std_logic_vector(4 downto 0);
|
4040 |
|
|
|
4041 |
|
|
variable j : integer := 0;
|
4042 |
|
|
variable scanread_active_edge : time := 0 ps;
|
4043 |
|
|
variable got_first_scanclk : boolean := false;
|
4044 |
|
|
variable got_first_gated_scanclk : boolean := false;
|
4045 |
|
|
variable scanclk_last_rising_edge : time := 0 ps;
|
4046 |
|
|
variable scanclk_period : time := 0 ps;
|
4047 |
|
|
variable current_scan_data : std_logic_vector(173 downto 0) := (OTHERS => '0');
|
4048 |
|
|
variable index : integer := 0;
|
4049 |
|
|
variable Tviol_scandata_scanclk : std_ulogic := '0';
|
4050 |
|
|
variable Tviol_scanread_scanclk : std_ulogic := '0';
|
4051 |
|
|
variable Tviol_scanwrite_scanclk : std_ulogic := '0';
|
4052 |
|
|
variable TimingData_scandata_scanclk : VitalTimingDataType := VitalTimingDataInit;
|
4053 |
|
|
variable TimingData_scanread_scanclk : VitalTimingDataType := VitalTimingDataInit;
|
4054 |
|
|
variable TimingData_scanwrite_scanclk : VitalTimingDataType := VitalTimingDataInit;
|
4055 |
|
|
variable scan_chain_length : integer := GPP_SCAN_CHAIN;
|
4056 |
|
|
variable tmp_rem : integer := 0;
|
4057 |
|
|
variable scanclk_cycles : integer := 0;
|
4058 |
|
|
variable lfc_tmp : std_logic_vector(1 downto 0);
|
4059 |
|
|
variable lfr_tmp : std_logic_vector(5 downto 0);
|
4060 |
|
|
variable lfr_int : integer := 0;
|
4061 |
|
|
|
4062 |
|
|
function slowest_clk (
|
4063 |
|
|
C0 : integer; C0_mode : string(1 to 6);
|
4064 |
|
|
C1 : integer; C1_mode : string(1 to 6);
|
4065 |
|
|
C2 : integer; C2_mode : string(1 to 6);
|
4066 |
|
|
C3 : integer; C3_mode : string(1 to 6);
|
4067 |
|
|
C4 : integer; C4_mode : string(1 to 6);
|
4068 |
|
|
C5 : integer; C5_mode : string(1 to 6);
|
4069 |
|
|
refclk : time; m_mod : integer) return time is
|
4070 |
|
|
variable max_modulus : integer := 1;
|
4071 |
|
|
variable q_period : time := 0 ps;
|
4072 |
|
|
variable refclk_int : integer := 0;
|
4073 |
|
|
begin
|
4074 |
|
|
if (C0_mode /= "bypass" and C0_mode /= " off") then
|
4075 |
|
|
max_modulus := C0;
|
4076 |
|
|
end if;
|
4077 |
|
|
if (C1 > max_modulus and C1_mode /= "bypass" and C1_mode /= " off") then
|
4078 |
|
|
max_modulus := C1;
|
4079 |
|
|
end if;
|
4080 |
|
|
if (C2 > max_modulus and C2_mode /= "bypass" and C2_mode /= " off") then
|
4081 |
|
|
max_modulus := C2;
|
4082 |
|
|
end if;
|
4083 |
|
|
if (C3 > max_modulus and C3_mode /= "bypass" and C3_mode /= " off") then
|
4084 |
|
|
max_modulus := C3;
|
4085 |
|
|
end if;
|
4086 |
|
|
if (C4 > max_modulus and C4_mode /= "bypass" and C4_mode /= " off") then
|
4087 |
|
|
max_modulus := C4;
|
4088 |
|
|
end if;
|
4089 |
|
|
if (C5 > max_modulus and C5_mode /= "bypass" and C5_mode /= " off") then
|
4090 |
|
|
max_modulus := C5;
|
4091 |
|
|
end if;
|
4092 |
|
|
|
4093 |
|
|
refclk_int := refclk / 1 ps;
|
4094 |
|
|
if (m_mod /= 0) then
|
4095 |
|
|
if (refclk_int > (refclk_int * max_modulus / m_mod)) then
|
4096 |
|
|
q_period := refclk_int * 1 ps;
|
4097 |
|
|
else
|
4098 |
|
|
q_period := (refclk_int * max_modulus / m_mod) * 1 ps;
|
4099 |
|
|
end if;
|
4100 |
|
|
end if;
|
4101 |
|
|
return (2*q_period);
|
4102 |
|
|
end slowest_clk;
|
4103 |
|
|
|
4104 |
|
|
function int2bin (arg : integer; size : integer) return std_logic_vector is
|
4105 |
|
|
variable int_val : integer := arg;
|
4106 |
|
|
variable result : std_logic_vector(size-1 downto 0);
|
4107 |
|
|
begin
|
4108 |
|
|
for i in 0 to result'left loop
|
4109 |
|
|
if ((int_val mod 2) = 0) then
|
4110 |
|
|
result(i) := '0';
|
4111 |
|
|
else
|
4112 |
|
|
result(i) := '1';
|
4113 |
|
|
end if;
|
4114 |
|
|
int_val := int_val/2;
|
4115 |
|
|
end loop;
|
4116 |
|
|
return result;
|
4117 |
|
|
end int2bin;
|
4118 |
|
|
|
4119 |
|
|
function extract_cntr_index (arg:string) return integer is
|
4120 |
|
|
variable index : integer := 0;
|
4121 |
|
|
begin
|
4122 |
|
|
if (arg(2) = '0') then
|
4123 |
|
|
index := 0;
|
4124 |
|
|
elsif (arg(2) = '1') then
|
4125 |
|
|
index := 1;
|
4126 |
|
|
elsif (arg(2) = '2') then
|
4127 |
|
|
index := 2;
|
4128 |
|
|
elsif (arg(2) = '3') then
|
4129 |
|
|
index := 3;
|
4130 |
|
|
elsif (arg(2) = '4') then
|
4131 |
|
|
index := 4;
|
4132 |
|
|
else index := 5;
|
4133 |
|
|
end if;
|
4134 |
|
|
|
4135 |
|
|
return index;
|
4136 |
|
|
end extract_cntr_index;
|
4137 |
|
|
|
4138 |
|
|
begin
|
4139 |
|
|
if (init) then
|
4140 |
|
|
if (m = 0) then
|
4141 |
|
|
clk5_cntr := "c5";
|
4142 |
|
|
clk4_cntr := "c4";
|
4143 |
|
|
clk3_cntr := "c3";
|
4144 |
|
|
clk2_cntr := "c2";
|
4145 |
|
|
clk1_cntr := "c1";
|
4146 |
|
|
clk0_cntr := "c0";
|
4147 |
|
|
else
|
4148 |
|
|
clk5_cntr := clk5_counter;
|
4149 |
|
|
clk4_cntr := clk4_counter;
|
4150 |
|
|
clk3_cntr := clk3_counter;
|
4151 |
|
|
clk2_cntr := clk2_counter;
|
4152 |
|
|
clk1_cntr := clk1_counter;
|
4153 |
|
|
clk0_cntr := clk0_counter;
|
4154 |
|
|
end if;
|
4155 |
|
|
|
4156 |
|
|
if (operation_mode = "external_feedback") then
|
4157 |
|
|
if (feedback_source = "clk0") then
|
4158 |
|
|
fbk_cntr := clk0_cntr;
|
4159 |
|
|
elsif (feedback_source = "clk1") then
|
4160 |
|
|
fbk_cntr := clk1_cntr;
|
4161 |
|
|
elsif (feedback_source = "clk2") then
|
4162 |
|
|
fbk_cntr := clk2_cntr;
|
4163 |
|
|
elsif (feedback_source = "clk3") then
|
4164 |
|
|
fbk_cntr := clk3_cntr;
|
4165 |
|
|
elsif (feedback_source = "clk4") then
|
4166 |
|
|
fbk_cntr := clk4_cntr;
|
4167 |
|
|
elsif (feedback_source = "clk5") then
|
4168 |
|
|
fbk_cntr := clk5_cntr;
|
4169 |
|
|
else
|
4170 |
|
|
fbk_cntr := "c0";
|
4171 |
|
|
end if;
|
4172 |
|
|
|
4173 |
|
|
if (fbk_cntr = "c0") then
|
4174 |
|
|
fbk_cntr_index := 0;
|
4175 |
|
|
elsif (fbk_cntr = "c1") then
|
4176 |
|
|
fbk_cntr_index := 1;
|
4177 |
|
|
elsif (fbk_cntr = "c2") then
|
4178 |
|
|
fbk_cntr_index := 2;
|
4179 |
|
|
elsif (fbk_cntr = "c3") then
|
4180 |
|
|
fbk_cntr_index := 3;
|
4181 |
|
|
elsif (fbk_cntr = "c4") then
|
4182 |
|
|
fbk_cntr_index := 4;
|
4183 |
|
|
elsif (fbk_cntr = "c5") then
|
4184 |
|
|
fbk_cntr_index := 5;
|
4185 |
|
|
end if;
|
4186 |
|
|
|
4187 |
|
|
ext_fbk_cntr <= fbk_cntr;
|
4188 |
|
|
ext_fbk_cntr_index <= fbk_cntr_index;
|
4189 |
|
|
end if;
|
4190 |
|
|
i_clk0_counter <= extract_cntr_index(clk0_cntr);
|
4191 |
|
|
i_clk1_counter <= extract_cntr_index(clk1_cntr);
|
4192 |
|
|
i_clk2_counter <= extract_cntr_index(clk2_cntr);
|
4193 |
|
|
i_clk3_counter <= extract_cntr_index(clk3_cntr);
|
4194 |
|
|
i_clk4_counter <= extract_cntr_index(clk4_cntr);
|
4195 |
|
|
i_clk5_counter <= extract_cntr_index(clk5_cntr);
|
4196 |
|
|
|
4197 |
|
|
|
4198 |
|
|
if (m = 0) then -- convert user parameters to advanced
|
4199 |
|
|
-- set the limit of the divide_by value that can be returned by
|
4200 |
|
|
-- the following function.
|
4201 |
|
|
max_d_value := 500;
|
4202 |
|
|
|
4203 |
|
|
-- scale down the multiply_by and divide_by values provided by the design
|
4204 |
|
|
-- before attempting to use them in the calculations below
|
4205 |
|
|
find_simple_integer_fraction(clk0_multiply_by, clk0_divide_by,
|
4206 |
|
|
max_d_value, i_clk0_mult_by, i_clk0_div_by);
|
4207 |
|
|
find_simple_integer_fraction(clk1_multiply_by, clk1_divide_by,
|
4208 |
|
|
max_d_value, i_clk1_mult_by, i_clk1_div_by);
|
4209 |
|
|
find_simple_integer_fraction(clk2_multiply_by, clk2_divide_by,
|
4210 |
|
|
max_d_value, i_clk2_mult_by, i_clk2_div_by);
|
4211 |
|
|
find_simple_integer_fraction(clk3_multiply_by, clk3_divide_by,
|
4212 |
|
|
max_d_value, i_clk3_mult_by, i_clk3_div_by);
|
4213 |
|
|
find_simple_integer_fraction(clk4_multiply_by, clk4_divide_by,
|
4214 |
|
|
max_d_value, i_clk4_mult_by, i_clk4_div_by);
|
4215 |
|
|
find_simple_integer_fraction(clk5_multiply_by, clk5_divide_by,
|
4216 |
|
|
max_d_value, i_clk5_mult_by, i_clk5_div_by);
|
4217 |
|
|
|
4218 |
|
|
if (((pll_type = "fast") or (pll_type = "lvds")) and ((vco_multiply_by /= 0) and (vco_divide_by /= 0))) then
|
4219 |
|
|
i_n := vco_divide_by;
|
4220 |
|
|
i_m := vco_multiply_by;
|
4221 |
|
|
else
|
4222 |
|
|
i_n := 1;
|
4223 |
|
|
i_m := lcm (i_clk0_mult_by, i_clk1_mult_by,
|
4224 |
|
|
i_clk2_mult_by, i_clk3_mult_by,
|
4225 |
|
|
i_clk4_mult_by, i_clk5_mult_by,
|
4226 |
|
|
1, 1, 1, 1, inclk0_input_frequency);
|
4227 |
|
|
end if;
|
4228 |
|
|
|
4229 |
|
|
if (pll_type = "flvds") then
|
4230 |
|
|
-- Need to readjust phase shift values when the clock multiply value has been readjusted.
|
4231 |
|
|
new_multiplier := clk0_multiply_by / i_clk0_mult_by;
|
4232 |
|
|
i_clk0_phase_shift := str2int(clk0_phase_shift) * new_multiplier;
|
4233 |
|
|
i_clk1_phase_shift := str2int(clk1_phase_shift) * new_multiplier;
|
4234 |
|
|
i_clk2_phase_shift := str2int(clk2_phase_shift) * new_multiplier;
|
4235 |
|
|
else
|
4236 |
|
|
i_clk0_phase_shift := str2int(clk0_phase_shift);
|
4237 |
|
|
i_clk1_phase_shift := str2int(clk1_phase_shift);
|
4238 |
|
|
i_clk2_phase_shift := str2int(clk2_phase_shift);
|
4239 |
|
|
end if;
|
4240 |
|
|
|
4241 |
|
|
max_neg_abs := maxnegabs(i_clk0_phase_shift,
|
4242 |
|
|
i_clk1_phase_shift,
|
4243 |
|
|
i_clk2_phase_shift,
|
4244 |
|
|
str2int(clk3_phase_shift),
|
4245 |
|
|
str2int(clk4_phase_shift),
|
4246 |
|
|
str2int(clk5_phase_shift),
|
4247 |
|
|
0, 0, 0, 0);
|
4248 |
|
|
i_m_ph := counter_ph(get_phase_degree(max_neg_abs,inclk0_input_frequency), i_m, i_n);
|
4249 |
|
|
|
4250 |
|
|
i_c_ph(0) := counter_ph(get_phase_degree(ph_adjust(i_clk0_phase_shift,max_neg_abs),inclk0_input_frequency), i_m, i_n);
|
4251 |
|
|
i_c_ph(1) := counter_ph(get_phase_degree(ph_adjust(i_clk1_phase_shift,max_neg_abs),inclk0_input_frequency), i_m, i_n);
|
4252 |
|
|
i_c_ph(2) := counter_ph(get_phase_degree(ph_adjust(i_clk2_phase_shift,max_neg_abs),inclk0_input_frequency), i_m, i_n);
|
4253 |
|
|
i_c_ph(3) := counter_ph(get_phase_degree(ph_adjust(str2int(clk3_phase_shift),max_neg_abs),inclk0_input_frequency), i_m, i_n);
|
4254 |
|
|
i_c_ph(4) := counter_ph(get_phase_degree(ph_adjust(str2int(clk4_phase_shift),max_neg_abs),inclk0_input_frequency), i_m, i_n);
|
4255 |
|
|
i_c_ph(5) := counter_ph(get_phase_degree(ph_adjust(str2int(clk5_phase_shift),max_neg_abs),inclk0_input_frequency), i_m, i_n);
|
4256 |
|
|
i_c_high(0) := counter_high(output_counter_value(i_clk0_div_by,
|
4257 |
|
|
i_clk0_mult_by, i_m, i_n), clk0_duty_cycle);
|
4258 |
|
|
i_c_high(1) := counter_high(output_counter_value(i_clk1_div_by,
|
4259 |
|
|
i_clk1_mult_by, i_m, i_n), clk1_duty_cycle);
|
4260 |
|
|
i_c_high(2) := counter_high(output_counter_value(i_clk2_div_by,
|
4261 |
|
|
i_clk2_mult_by, i_m, i_n), clk2_duty_cycle);
|
4262 |
|
|
i_c_high(3) := counter_high(output_counter_value(i_clk3_div_by,
|
4263 |
|
|
i_clk3_mult_by, i_m, i_n), clk3_duty_cycle);
|
4264 |
|
|
i_c_high(4) := counter_high(output_counter_value(i_clk4_div_by,
|
4265 |
|
|
i_clk4_mult_by, i_m, i_n), clk4_duty_cycle);
|
4266 |
|
|
i_c_high(5) := counter_high(output_counter_value(i_clk5_div_by,
|
4267 |
|
|
i_clk5_mult_by, i_m, i_n), clk5_duty_cycle);
|
4268 |
|
|
i_c_low(0) := counter_low(output_counter_value(i_clk0_div_by,
|
4269 |
|
|
i_clk0_mult_by, i_m, i_n), clk0_duty_cycle);
|
4270 |
|
|
i_c_low(1) := counter_low(output_counter_value(i_clk1_div_by,
|
4271 |
|
|
i_clk1_mult_by, i_m, i_n), clk1_duty_cycle);
|
4272 |
|
|
i_c_low(2) := counter_low(output_counter_value(i_clk2_div_by,
|
4273 |
|
|
i_clk2_mult_by, i_m, i_n), clk2_duty_cycle);
|
4274 |
|
|
i_c_low(3) := counter_low(output_counter_value(i_clk3_div_by,
|
4275 |
|
|
i_clk3_mult_by, i_m, i_n), clk3_duty_cycle);
|
4276 |
|
|
i_c_low(4) := counter_low(output_counter_value(i_clk4_div_by,
|
4277 |
|
|
i_clk4_mult_by, i_m, i_n), clk4_duty_cycle);
|
4278 |
|
|
i_c_low(5) := counter_low(output_counter_value(i_clk5_div_by,
|
4279 |
|
|
i_clk5_mult_by, i_m, i_n), clk5_duty_cycle);
|
4280 |
|
|
i_m_initial := counter_initial(get_phase_degree(max_neg_abs, inclk0_input_frequency), i_m,i_n);
|
4281 |
|
|
|
4282 |
|
|
i_c_initial(0) := counter_initial(get_phase_degree(ph_adjust(i_clk0_phase_shift, max_neg_abs), inclk0_input_frequency), i_m, i_n);
|
4283 |
|
|
i_c_initial(1) := counter_initial(get_phase_degree(ph_adjust(i_clk1_phase_shift, max_neg_abs), inclk0_input_frequency), i_m, i_n);
|
4284 |
|
|
i_c_initial(2) := counter_initial(get_phase_degree(ph_adjust(i_clk2_phase_shift, max_neg_abs), inclk0_input_frequency), i_m, i_n);
|
4285 |
|
|
i_c_initial(3) := counter_initial(get_phase_degree(ph_adjust(str2int(clk3_phase_shift), max_neg_abs), inclk0_input_frequency), i_m, i_n);
|
4286 |
|
|
i_c_initial(4) := counter_initial(get_phase_degree(ph_adjust(str2int(clk4_phase_shift), max_neg_abs), inclk0_input_frequency), i_m, i_n);
|
4287 |
|
|
i_c_initial(5) := counter_initial(get_phase_degree(ph_adjust(str2int(clk5_phase_shift), max_neg_abs), inclk0_input_frequency), i_m, i_n);
|
4288 |
|
|
i_c_mode(0) := counter_mode(clk0_duty_cycle, output_counter_value(i_clk0_div_by, i_clk0_mult_by, i_m, i_n));
|
4289 |
|
|
i_c_mode(1) := counter_mode(clk1_duty_cycle, output_counter_value(i_clk1_div_by, i_clk1_mult_by, i_m, i_n));
|
4290 |
|
|
i_c_mode(2) := counter_mode(clk2_duty_cycle, output_counter_value(i_clk2_div_by, i_clk2_mult_by, i_m, i_n));
|
4291 |
|
|
i_c_mode(3) := counter_mode(clk3_duty_cycle, output_counter_value(i_clk3_div_by, i_clk3_mult_by, i_m, i_n));
|
4292 |
|
|
i_c_mode(4) := counter_mode(clk4_duty_cycle, output_counter_value(i_clk4_div_by, i_clk4_mult_by, i_m, i_n));
|
4293 |
|
|
i_c_mode(5) := counter_mode(clk5_duty_cycle, output_counter_value(i_clk5_div_by, i_clk5_mult_by, i_m, i_n));
|
4294 |
|
|
|
4295 |
|
|
-- in external feedback mode, need to adjust M value to take
|
4296 |
|
|
-- into consideration the external feedback counter value
|
4297 |
|
|
if(operation_mode = "external_feedback") then
|
4298 |
|
|
-- if there is a negative phase shift, m_initial can
|
4299 |
|
|
-- only be 1
|
4300 |
|
|
if (max_neg_abs > 0) then
|
4301 |
|
|
i_m_initial := 1;
|
4302 |
|
|
end if;
|
4303 |
|
|
|
4304 |
|
|
-- calculate the feedback counter multiplier
|
4305 |
|
|
if (i_c_mode(fbk_cntr_index) = "bypass") then
|
4306 |
|
|
output_count := 1;
|
4307 |
|
|
else
|
4308 |
|
|
output_count := i_c_high(fbk_cntr_index) + i_c_low(fbk_cntr_index);
|
4309 |
|
|
end if;
|
4310 |
|
|
|
4311 |
|
|
new_divisor := gcd(i_m, output_count);
|
4312 |
|
|
i_m := i_m / new_divisor;
|
4313 |
|
|
i_n := output_count / new_divisor;
|
4314 |
|
|
end if;
|
4315 |
|
|
|
4316 |
|
|
else -- m /= 0
|
4317 |
|
|
|
4318 |
|
|
i_n := n;
|
4319 |
|
|
i_m := m;
|
4320 |
|
|
i_m_initial := m_initial;
|
4321 |
|
|
i_m_ph := m_ph;
|
4322 |
|
|
i_c_ph(0) := c0_ph;
|
4323 |
|
|
i_c_ph(1) := c1_ph;
|
4324 |
|
|
i_c_ph(2) := c2_ph;
|
4325 |
|
|
i_c_ph(3) := c3_ph;
|
4326 |
|
|
i_c_ph(4) := c4_ph;
|
4327 |
|
|
i_c_ph(5) := c5_ph;
|
4328 |
|
|
i_c_high(0) := c0_high;
|
4329 |
|
|
i_c_high(1) := c1_high;
|
4330 |
|
|
i_c_high(2) := c2_high;
|
4331 |
|
|
i_c_high(3) := c3_high;
|
4332 |
|
|
i_c_high(4) := c4_high;
|
4333 |
|
|
i_c_high(5) := c5_high;
|
4334 |
|
|
i_c_low(0) := c0_low;
|
4335 |
|
|
i_c_low(1) := c1_low;
|
4336 |
|
|
i_c_low(2) := c2_low;
|
4337 |
|
|
i_c_low(3) := c3_low;
|
4338 |
|
|
i_c_low(4) := c4_low;
|
4339 |
|
|
i_c_low(5) := c5_low;
|
4340 |
|
|
i_c_initial(0) := c0_initial;
|
4341 |
|
|
i_c_initial(1) := c1_initial;
|
4342 |
|
|
i_c_initial(2) := c2_initial;
|
4343 |
|
|
i_c_initial(3) := c3_initial;
|
4344 |
|
|
i_c_initial(4) := c4_initial;
|
4345 |
|
|
i_c_initial(5) := c5_initial;
|
4346 |
|
|
i_c_mode(0) := translate_string(c0_mode);
|
4347 |
|
|
i_c_mode(1) := translate_string(c1_mode);
|
4348 |
|
|
i_c_mode(2) := translate_string(c2_mode);
|
4349 |
|
|
i_c_mode(3) := translate_string(c3_mode);
|
4350 |
|
|
i_c_mode(4) := translate_string(c4_mode);
|
4351 |
|
|
i_c_mode(5) := translate_string(c5_mode);
|
4352 |
|
|
|
4353 |
|
|
end if; -- user to advanced conversion.
|
4354 |
|
|
|
4355 |
|
|
m_initial_val <= i_m_initial;
|
4356 |
|
|
n_val(0) <= i_n;
|
4357 |
|
|
m_val(0) <= i_m;
|
4358 |
|
|
m_val(1) <= m2;
|
4359 |
|
|
n_val(1) <= n2;
|
4360 |
|
|
|
4361 |
|
|
if (i_m = 1) then
|
4362 |
|
|
m_mode_val(0) <= "bypass";
|
4363 |
|
|
else
|
4364 |
|
|
m_mode_val(0) <= " ";
|
4365 |
|
|
end if;
|
4366 |
|
|
if (m2 = 1) then
|
4367 |
|
|
m_mode_val(1) <= "bypass";
|
4368 |
|
|
end if;
|
4369 |
|
|
if (i_n = 1) then
|
4370 |
|
|
n_mode_val(0) <= "bypass";
|
4371 |
|
|
end if;
|
4372 |
|
|
if (n2 = 1) then
|
4373 |
|
|
n_mode_val(1) <= "bypass";
|
4374 |
|
|
end if;
|
4375 |
|
|
|
4376 |
|
|
m_ph_val <= i_m_ph;
|
4377 |
|
|
m_ph_val_tmp := i_m_ph;
|
4378 |
|
|
m_val_tmp := m_val;
|
4379 |
|
|
|
4380 |
|
|
for i in 0 to 5 loop
|
4381 |
|
|
if (i_c_mode(i) = "bypass") then
|
4382 |
|
|
if (pll_type = "fast" or pll_type = "lvds") then
|
4383 |
|
|
i_c_high(i) := 16;
|
4384 |
|
|
i_c_low(i) := 16;
|
4385 |
|
|
else
|
4386 |
|
|
i_c_high(i) := 256;
|
4387 |
|
|
i_c_low(i) := 256;
|
4388 |
|
|
end if;
|
4389 |
|
|
end if;
|
4390 |
|
|
c_ph_val(i) <= i_c_ph(i);
|
4391 |
|
|
c_initial_val(i) <= i_c_initial(i);
|
4392 |
|
|
c_high_val(i) <= i_c_high(i);
|
4393 |
|
|
c_low_val(i) <= i_c_low(i);
|
4394 |
|
|
c_mode_val(i) <= i_c_mode(i);
|
4395 |
|
|
c_high_val_tmp(i) := i_c_high(i);
|
4396 |
|
|
c_low_val_tmp(i) := i_c_low(i);
|
4397 |
|
|
c_mode_val_tmp(i) := i_c_mode(i);
|
4398 |
|
|
c_ph_val_tmp(i) := i_c_ph(i);
|
4399 |
|
|
c_ph_val_orig(i) <= i_c_ph(i);
|
4400 |
|
|
c_high_val_hold(i) <= i_c_high(i);
|
4401 |
|
|
c_low_val_hold(i) <= i_c_low(i);
|
4402 |
|
|
c_mode_val_hold(i) <= i_c_mode(i);
|
4403 |
|
|
end loop;
|
4404 |
|
|
|
4405 |
|
|
lfc_val <= loop_filter_c;
|
4406 |
|
|
lfr_val <= loop_filter_r;
|
4407 |
|
|
cp_curr_val <= charge_pump_current;
|
4408 |
|
|
|
4409 |
|
|
if (pll_type = "fast") then
|
4410 |
|
|
scan_chain_length := FAST_SCAN_CHAIN;
|
4411 |
|
|
end if;
|
4412 |
|
|
-- initialize the scan_chain contents
|
4413 |
|
|
-- CP/LF bits
|
4414 |
|
|
scan_data(11 downto 0) <= "000000000000";
|
4415 |
|
|
for i in 0 to 3 loop
|
4416 |
|
|
if (pll_type = "fast" or pll_type = "lvds") then
|
4417 |
|
|
if (fpll_loop_filter_c_arr(i) = loop_filter_c) then
|
4418 |
|
|
scan_data(11 downto 10) <= int2bin(i, 2);
|
4419 |
|
|
end if;
|
4420 |
|
|
else
|
4421 |
|
|
if (loop_filter_c_arr(i) = loop_filter_c) then
|
4422 |
|
|
scan_data(11 downto 10) <= int2bin(i, 2);
|
4423 |
|
|
end if;
|
4424 |
|
|
end if;
|
4425 |
|
|
end loop;
|
4426 |
|
|
for i in 0 to 15 loop
|
4427 |
|
|
if (charge_pump_curr_arr(i) = charge_pump_current) then
|
4428 |
|
|
scan_data(3 downto 0) <= int2bin(i, 4);
|
4429 |
|
|
end if;
|
4430 |
|
|
end loop;
|
4431 |
|
|
for i in 0 to 39 loop
|
4432 |
|
|
if (loop_filter_r_arr(i) = loop_filter_r) then
|
4433 |
|
|
if (i >= 16 and i <= 23) then
|
4434 |
|
|
scan_data(9 downto 4) <= int2bin((i+8), 6);
|
4435 |
|
|
elsif (i >= 24 and i <= 31) then
|
4436 |
|
|
scan_data(9 downto 4) <= int2bin((i+16), 6);
|
4437 |
|
|
elsif (i >= 32) then
|
4438 |
|
|
scan_data(9 downto 4) <= int2bin((i+24), 6);
|
4439 |
|
|
else
|
4440 |
|
|
scan_data(9 downto 4) <= int2bin(i, 6);
|
4441 |
|
|
end if;
|
4442 |
|
|
end if;
|
4443 |
|
|
end loop;
|
4444 |
|
|
|
4445 |
|
|
if (pll_type = "fast" or pll_type = "lvds") then
|
4446 |
|
|
scan_data(21 downto 12) <= "0000000000"; -- M, C3-C0 ph
|
4447 |
|
|
-- C0-C3 high
|
4448 |
|
|
scan_data(25 downto 22) <= int2bin(i_c_high(0), 4);
|
4449 |
|
|
scan_data(35 downto 32) <= int2bin(i_c_high(1), 4);
|
4450 |
|
|
scan_data(45 downto 42) <= int2bin(i_c_high(2), 4);
|
4451 |
|
|
scan_data(55 downto 52) <= int2bin(i_c_high(3), 4);
|
4452 |
|
|
-- C0-C3 low
|
4453 |
|
|
scan_data(30 downto 27) <= int2bin(i_c_low(0), 4);
|
4454 |
|
|
scan_data(40 downto 37) <= int2bin(i_c_low(1), 4);
|
4455 |
|
|
scan_data(50 downto 47) <= int2bin(i_c_low(2), 4);
|
4456 |
|
|
scan_data(60 downto 57) <= int2bin(i_c_low(3), 4);
|
4457 |
|
|
-- C0-C3 mode
|
4458 |
|
|
for i in 0 to 3 loop
|
4459 |
|
|
if (i_c_mode(i) = " off" or i_c_mode(i) = "bypass") then
|
4460 |
|
|
scan_data(26 + (10*i)) <= '1';
|
4461 |
|
|
if (i_c_mode(i) = " off") then
|
4462 |
|
|
scan_data(31 + (10*i)) <= '1';
|
4463 |
|
|
else
|
4464 |
|
|
scan_data(31 + (10*i)) <= '0';
|
4465 |
|
|
end if;
|
4466 |
|
|
else
|
4467 |
|
|
scan_data(26 + (10*i)) <= '0';
|
4468 |
|
|
if (i_c_mode(i) = " odd") then
|
4469 |
|
|
scan_data(31 + (10*i)) <= '1';
|
4470 |
|
|
else
|
4471 |
|
|
scan_data(31 + (10*i)) <= '0';
|
4472 |
|
|
end if;
|
4473 |
|
|
end if;
|
4474 |
|
|
end loop;
|
4475 |
|
|
-- M
|
4476 |
|
|
if (i_m = 1) then
|
4477 |
|
|
scan_data(66) <= '1';
|
4478 |
|
|
scan_data(71) <= '0';
|
4479 |
|
|
scan_data(65 downto 62) <= "0000";
|
4480 |
|
|
scan_data(70 downto 67) <= "0000";
|
4481 |
|
|
else
|
4482 |
|
|
scan_data(66) <= '0'; -- set BYPASS bit to 0
|
4483 |
|
|
scan_data(70 downto 67) <= int2bin(i_m/2, 4); -- set M low
|
4484 |
|
|
if (i_m rem 2 = 0) then
|
4485 |
|
|
-- M is an even no. : set M high = low,
|
4486 |
|
|
-- set odd/even bit to 0
|
4487 |
|
|
scan_data(65 downto 62) <= int2bin(i_m/2, 4);
|
4488 |
|
|
scan_data(71) <= '0';
|
4489 |
|
|
else -- M is odd : M high = low + 1
|
4490 |
|
|
scan_data(65 downto 62) <= int2bin((i_m/2) + 1, 4);
|
4491 |
|
|
scan_data(71) <= '1';
|
4492 |
|
|
end if;
|
4493 |
|
|
end if;
|
4494 |
|
|
-- N
|
4495 |
|
|
scan_data(73 downto 72) <= int2bin(i_n, 2);
|
4496 |
|
|
if (i_n = 1) then
|
4497 |
|
|
scan_data(74) <= '1';
|
4498 |
|
|
scan_data(73 downto 72) <= "00";
|
4499 |
|
|
end if;
|
4500 |
|
|
else -- PLL type is auto or enhanced
|
4501 |
|
|
scan_data(25 downto 12) <= "00000000000000"; -- M, C5-C0 ph
|
4502 |
|
|
-- C0-C5 high
|
4503 |
|
|
scan_data(123 downto 116) <= int2bin(i_c_high(0), 8);
|
4504 |
|
|
scan_data(105 downto 98) <= int2bin(i_c_high(1), 8);
|
4505 |
|
|
scan_data(87 downto 80) <= int2bin(i_c_high(2), 8);
|
4506 |
|
|
scan_data(69 downto 62) <= int2bin(i_c_high(3), 8);
|
4507 |
|
|
scan_data(51 downto 44) <= int2bin(i_c_high(4), 8);
|
4508 |
|
|
scan_data(33 downto 26) <= int2bin(i_c_high(5), 8);
|
4509 |
|
|
-- C0-C5 low
|
4510 |
|
|
scan_data(132 downto 125) <= int2bin(i_c_low(0), 8);
|
4511 |
|
|
scan_data(114 downto 107) <= int2bin(i_c_low(1), 8);
|
4512 |
|
|
scan_data(96 downto 89) <= int2bin(i_c_low(2), 8);
|
4513 |
|
|
scan_data(78 downto 71) <= int2bin(i_c_low(3), 8);
|
4514 |
|
|
scan_data(60 downto 53) <= int2bin(i_c_low(4), 8);
|
4515 |
|
|
scan_data(42 downto 35) <= int2bin(i_c_low(5), 8);
|
4516 |
|
|
-- C0-C5 mode
|
4517 |
|
|
for i in 0 to 5 loop
|
4518 |
|
|
if (i_c_mode(i) = " off" or i_c_mode(i) = "bypass") then
|
4519 |
|
|
scan_data(124 - (18*i)) <= '1';
|
4520 |
|
|
if (i_c_mode(i) = " off") then
|
4521 |
|
|
scan_data(133 - (18*i)) <= '1';
|
4522 |
|
|
else
|
4523 |
|
|
scan_data(133 - (18*i)) <= '0';
|
4524 |
|
|
end if;
|
4525 |
|
|
else
|
4526 |
|
|
scan_data(124 - (18*i)) <= '0';
|
4527 |
|
|
if (i_c_mode(i) = " odd") then
|
4528 |
|
|
scan_data(133 - (18*i)) <= '1';
|
4529 |
|
|
else
|
4530 |
|
|
scan_data(133 - (18*i)) <= '0';
|
4531 |
|
|
end if;
|
4532 |
|
|
end if;
|
4533 |
|
|
end loop;
|
4534 |
|
|
|
4535 |
|
|
-- M/M2
|
4536 |
|
|
scan_data(142 downto 134) <= int2bin(i_m, 9);
|
4537 |
|
|
scan_data(143) <= '0';
|
4538 |
|
|
scan_data(152 downto 144) <= int2bin(m2, 9);
|
4539 |
|
|
scan_data(153) <= '0';
|
4540 |
|
|
if (i_m = 1) then
|
4541 |
|
|
scan_data(143) <= '1';
|
4542 |
|
|
scan_data(142 downto 134) <= "000000000";
|
4543 |
|
|
end if;
|
4544 |
|
|
if (m2 = 1) then
|
4545 |
|
|
scan_data(153) <= '1';
|
4546 |
|
|
scan_data(152 downto 144) <= "000000000";
|
4547 |
|
|
end if;
|
4548 |
|
|
|
4549 |
|
|
-- N/N2
|
4550 |
|
|
scan_data(162 downto 154) <= int2bin(i_n, 9);
|
4551 |
|
|
scan_data(172 downto 164) <= int2bin(n2, 9);
|
4552 |
|
|
if (i_n = 1) then
|
4553 |
|
|
scan_data(163) <= '1';
|
4554 |
|
|
scan_data(162 downto 154) <= "000000000";
|
4555 |
|
|
end if;
|
4556 |
|
|
if (n2 = 1) then
|
4557 |
|
|
scan_data(173) <= '1';
|
4558 |
|
|
scan_data(172 downto 164) <= "000000000";
|
4559 |
|
|
end if;
|
4560 |
|
|
|
4561 |
|
|
end if;
|
4562 |
|
|
if (pll_type = "fast" or pll_type = "lvds") then
|
4563 |
|
|
num_output_cntrs <= 4;
|
4564 |
|
|
else
|
4565 |
|
|
num_output_cntrs <= 6;
|
4566 |
|
|
end if;
|
4567 |
|
|
|
4568 |
|
|
init := false;
|
4569 |
|
|
elsif (scanwrite_enabled'event and scanwrite_enabled = '0') then
|
4570 |
|
|
-- falling edge : deassert scandone
|
4571 |
|
|
scandone_tmp <= transport '0' after (1.5 * scanclk_period);
|
4572 |
|
|
c0_rising_edge_transfer_done := false;
|
4573 |
|
|
c1_rising_edge_transfer_done := false;
|
4574 |
|
|
c2_rising_edge_transfer_done := false;
|
4575 |
|
|
c3_rising_edge_transfer_done := false;
|
4576 |
|
|
c4_rising_edge_transfer_done := false;
|
4577 |
|
|
c5_rising_edge_transfer_done := false;
|
4578 |
|
|
elsif (scanwrite_enabled'event and scanwrite_enabled = '1') then
|
4579 |
|
|
ASSERT false REPORT "PLL Reprogramming Initiated" severity note;
|
4580 |
|
|
|
4581 |
|
|
reconfig_err <= false;
|
4582 |
|
|
|
4583 |
|
|
-- make temporary copy of scan_data for processing
|
4584 |
|
|
tmp_scan_data := scan_data;
|
4585 |
|
|
|
4586 |
|
|
-- save old values
|
4587 |
|
|
lfc_old <= lfc_val;
|
4588 |
|
|
lfr_old <= lfr_val;
|
4589 |
|
|
cp_curr_old <= cp_curr_val;
|
4590 |
|
|
|
4591 |
|
|
-- CP
|
4592 |
|
|
-- Bits 0-3 : all values are legal
|
4593 |
|
|
cp_curr_val <= charge_pump_curr_arr(alt_conv_integer(scan_data(3 downto 0)));
|
4594 |
|
|
|
4595 |
|
|
-- LF Resistance : bits 4-9
|
4596 |
|
|
-- values from 010000 - 010111, 100000 - 100111,
|
4597 |
|
|
-- 110000 - 110111 are illegal
|
4598 |
|
|
lfr_tmp := tmp_scan_data(9 downto 4);
|
4599 |
|
|
lfr_int := alt_conv_integer(lfr_tmp);
|
4600 |
|
|
if (((lfr_int >= 16) and (lfr_int <= 23)) or
|
4601 |
|
|
((lfr_int >= 32) and (lfr_int <= 39)) or
|
4602 |
|
|
((lfr_int >= 48) and (lfr_int <= 55))) then
|
4603 |
|
|
reconfig_err <= true;
|
4604 |
|
|
ASSERT false REPORT "Illegal bit settings for Loop Filter Resistance. Legal bit values range from 000000-001111, 011000-011111, 101000-101111 and 111000-111111. Reconfiguration may not work." severity warning;
|
4605 |
|
|
else
|
4606 |
|
|
if (lfr_int >= 56) then
|
4607 |
|
|
lfr_int := lfr_int - 24;
|
4608 |
|
|
elsif ((lfr_int >= 40) and (lfr_int <= 47)) then
|
4609 |
|
|
lfr_int := lfr_int - 16;
|
4610 |
|
|
elsif ((lfr_int >= 24) and (lfr_int <= 31)) then
|
4611 |
|
|
lfr_int := lfr_int - 8;
|
4612 |
|
|
end if;
|
4613 |
|
|
lfr_val <= loop_filter_r_arr(lfr_int);
|
4614 |
|
|
end if;
|
4615 |
|
|
|
4616 |
|
|
-- LF Capacitance : bits 10,11 : all values are legal
|
4617 |
|
|
lfc_tmp := scan_data(11 downto 10);
|
4618 |
|
|
if (pll_type = "fast" or pll_type = "lvds") then
|
4619 |
|
|
lfc_val <= fpll_loop_filter_c_arr(alt_conv_integer(lfc_tmp));
|
4620 |
|
|
else
|
4621 |
|
|
lfc_val <= loop_filter_c_arr(alt_conv_integer(lfc_tmp));
|
4622 |
|
|
end if;
|
4623 |
|
|
|
4624 |
|
|
-- cntrs c0-c5
|
4625 |
|
|
-- save old values for display info.
|
4626 |
|
|
m_val_old <= m_val;
|
4627 |
|
|
n_val_old <= n_val;
|
4628 |
|
|
m_mode_val_old <= m_mode_val;
|
4629 |
|
|
n_mode_val_old <= n_mode_val;
|
4630 |
|
|
m_ph_val_old <= m_ph_val;
|
4631 |
|
|
c_high_val_old <= c_high_val;
|
4632 |
|
|
c_low_val_old <= c_low_val;
|
4633 |
|
|
c_ph_val_old <= c_ph_val;
|
4634 |
|
|
c_mode_val_old <= c_mode_val;
|
4635 |
|
|
|
4636 |
|
|
-- first the M counter phase : bit order same for fast and GPP
|
4637 |
|
|
if (scan_data(12) = '0') then
|
4638 |
|
|
-- do nothing
|
4639 |
|
|
elsif (scan_data(12) = '1' and scan_data(13) = '1') then
|
4640 |
|
|
m_ph_val_tmp := m_ph_val_tmp + 1;
|
4641 |
|
|
if (m_ph_val_tmp > 7) then
|
4642 |
|
|
m_ph_val_tmp := 0;
|
4643 |
|
|
end if;
|
4644 |
|
|
elsif (scan_data(12) = '1' and scan_data(13) = '0') then
|
4645 |
|
|
m_ph_val_tmp := m_ph_val_tmp - 1;
|
4646 |
|
|
if (m_ph_val_tmp < 0) then
|
4647 |
|
|
m_ph_val_tmp := 7;
|
4648 |
|
|
end if;
|
4649 |
|
|
else
|
4650 |
|
|
reconfig_err <= true;
|
4651 |
|
|
ASSERT false REPORT "Illegal values for M counter phase tap. Reconfiguration may not work." severity warning;
|
4652 |
|
|
end if;
|
4653 |
|
|
|
4654 |
|
|
-- read the fast PLL bits
|
4655 |
|
|
if (pll_type = "fast" or pll_type = "lvds") then
|
4656 |
|
|
-- C3-C0 phase bits
|
4657 |
|
|
for i in 3 downto 0 loop
|
4658 |
|
|
start_bit := 14 + ((3-i)*2);
|
4659 |
|
|
if (tmp_scan_data(start_bit) = '0') then
|
4660 |
|
|
-- do nothing
|
4661 |
|
|
elsif (tmp_scan_data(start_bit) = '1') then
|
4662 |
|
|
if (tmp_scan_data(start_bit + 1) = '1') then
|
4663 |
|
|
c_ph_val_tmp(i) := c_ph_val_tmp(i) + 1;
|
4664 |
|
|
if (c_ph_val_tmp(i) > 7) then
|
4665 |
|
|
c_ph_val_tmp(i) := 0;
|
4666 |
|
|
end if;
|
4667 |
|
|
elsif (tmp_scan_data(start_bit + 1) = '0') then
|
4668 |
|
|
c_ph_val_tmp(i) := c_ph_val_tmp(i) - 1;
|
4669 |
|
|
if (c_ph_val_tmp(i) < 0) then
|
4670 |
|
|
c_ph_val_tmp(i) := 7;
|
4671 |
|
|
end if;
|
4672 |
|
|
end if;
|
4673 |
|
|
end if;
|
4674 |
|
|
end loop;
|
4675 |
|
|
-- C0-C3 counter moduli
|
4676 |
|
|
for i in 0 to 3 loop
|
4677 |
|
|
start_bit := 22 + (i*10);
|
4678 |
|
|
if (tmp_scan_data(start_bit + 4) = '1') then
|
4679 |
|
|
c_mode_val_tmp(i) := "bypass";
|
4680 |
|
|
if (tmp_scan_data(start_bit + 9) = '1') then
|
4681 |
|
|
c_mode_val_tmp(i) := " off";
|
4682 |
|
|
ASSERT false REPORT "The specified bit settings will turn OFF the " &cntrs(i)& "counter. It cannot be turned on unless the part is re-initialized." severity warning;
|
4683 |
|
|
end if;
|
4684 |
|
|
elsif (tmp_scan_data(start_bit + 9) = '1') then
|
4685 |
|
|
c_mode_val_tmp(i) := " odd";
|
4686 |
|
|
else
|
4687 |
|
|
c_mode_val_tmp(i) := " even";
|
4688 |
|
|
end if;
|
4689 |
|
|
high_fast := tmp_scan_data(start_bit+3 downto start_bit);
|
4690 |
|
|
low_fast := tmp_scan_data(start_bit+8 downto start_bit+5);
|
4691 |
|
|
if (tmp_scan_data(start_bit+3 downto start_bit) = "0000") then
|
4692 |
|
|
c_high_val_tmp(i) := 16;
|
4693 |
|
|
else
|
4694 |
|
|
c_high_val_tmp(i) := alt_conv_integer(high_fast);
|
4695 |
|
|
end if;
|
4696 |
|
|
if (tmp_scan_data(start_bit+8 downto start_bit+5) = "0000") then
|
4697 |
|
|
c_low_val_tmp(i) := 16;
|
4698 |
|
|
else
|
4699 |
|
|
c_low_val_tmp(i) := alt_conv_integer(low_fast);
|
4700 |
|
|
end if;
|
4701 |
|
|
end loop;
|
4702 |
|
|
sig_c_ph_val_tmp <= c_ph_val_tmp;
|
4703 |
|
|
sig_c_low_val_tmp <= c_low_val_tmp;
|
4704 |
|
|
sig_c_hi_val_tmp <= c_high_val_tmp;
|
4705 |
|
|
-- M
|
4706 |
|
|
-- some temporary storage
|
4707 |
|
|
if (tmp_scan_data(65 downto 62) = "0000") then
|
4708 |
|
|
m_hi := "10000";
|
4709 |
|
|
else
|
4710 |
|
|
m_hi := "0" & tmp_scan_data(65 downto 62);
|
4711 |
|
|
end if;
|
4712 |
|
|
if (tmp_scan_data(70 downto 67) = "0000") then
|
4713 |
|
|
m_lo := "10000";
|
4714 |
|
|
else
|
4715 |
|
|
m_lo := "0" & tmp_scan_data(70 downto 67);
|
4716 |
|
|
end if;
|
4717 |
|
|
m_val_tmp(0) := alt_conv_integer(m_hi) + alt_conv_integer(m_lo);
|
4718 |
|
|
if (tmp_scan_data(66) = '1') then
|
4719 |
|
|
if (tmp_scan_data(71) = '1') then
|
4720 |
|
|
-- this will turn off the M counter : error
|
4721 |
|
|
reconfig_err <= true;
|
4722 |
|
|
is_error := true;
|
4723 |
|
|
ASSERT false REPORT "The specified bit settings will turn OFF the M counter. This is illegal. Reconfiguration may not work." severity warning;
|
4724 |
|
|
else -- M counter is being bypassed
|
4725 |
|
|
if (m_mode_val(0) /= "bypass") then
|
4726 |
|
|
-- mode is switched : give warning
|
4727 |
|
|
ASSERT false REPORT "M counter switched from enabled to BYPASS mode. PLL may lose lock." severity warning;
|
4728 |
|
|
end if;
|
4729 |
|
|
m_val_tmp(0) := 1;
|
4730 |
|
|
m_mode_val(0) <= "bypass";
|
4731 |
|
|
end if;
|
4732 |
|
|
else
|
4733 |
|
|
if (m_mode_val(0) = "bypass") then
|
4734 |
|
|
-- mode is switched : give warning
|
4735 |
|
|
ASSERT false REPORT "M counter switched BYPASS mode to enabled. PLL may lose lock." severity warning;
|
4736 |
|
|
end if;
|
4737 |
|
|
m_mode_val(0) <= " ";
|
4738 |
|
|
if (tmp_scan_data(71) = '1') then
|
4739 |
|
|
-- odd : check for duty cycle, if not 50% -- error
|
4740 |
|
|
if (alt_conv_integer(m_hi) - alt_conv_integer(m_lo) /= 1) then
|
4741 |
|
|
reconfig_err <= true;
|
4742 |
|
|
ASSERT FALSE REPORT "The M counter of the " & family_name & " FAST PLL can be configured for 50% duty cycle only. In this case, the HIGH and LOW moduli programmed will result in a duty cycle other than 50%, which is illegal. Reconfiguration may not work." severity warning;
|
4743 |
|
|
end if;
|
4744 |
|
|
else -- even
|
4745 |
|
|
if (alt_conv_integer(m_hi) /= alt_conv_integer(m_lo)) then
|
4746 |
|
|
reconfig_err <= true;
|
4747 |
|
|
ASSERT FALSE REPORT "The M counter of the " & family_name & " FAST PLL can be configured for 50% duty cycle only. In this case, the HIGH and LOW moduli programmed will result in a duty cycle other than 50%, which is illegal. Reconfiguration may not work." severity warning;
|
4748 |
|
|
end if;
|
4749 |
|
|
end if;
|
4750 |
|
|
end if;
|
4751 |
|
|
|
4752 |
|
|
-- N
|
4753 |
|
|
is_error := false;
|
4754 |
|
|
n_fast := tmp_scan_data(73 downto 72);
|
4755 |
|
|
n_val(0) <= alt_conv_integer(n_fast);
|
4756 |
|
|
if (tmp_scan_data(74) /= '1') then
|
4757 |
|
|
if (alt_conv_integer(n_fast) = 1) then
|
4758 |
|
|
is_error := true;
|
4759 |
|
|
reconfig_err <= true;
|
4760 |
|
|
-- cntr value is illegal : give warning
|
4761 |
|
|
ASSERT false REPORT "Illegal 1 value for N counter. Instead the counter should be BYPASSED. Reconfiguration may not work." severity warning;
|
4762 |
|
|
elsif (alt_conv_integer(n_fast) = 0) then
|
4763 |
|
|
n_val(0) <= 4;
|
4764 |
|
|
ASSERT FALSE REPORT "N Modulus = " &int2str(4)& " " severity note;
|
4765 |
|
|
end if;
|
4766 |
|
|
if (not is_error) then
|
4767 |
|
|
if (n_mode_val(0) = "bypass") then
|
4768 |
|
|
ASSERT false REPORT "N Counter switched from BYPASS mode to enabled (N modulus = " &int2str(alt_conv_integer(n_fast))& "). PLL may lose lock." severity warning;
|
4769 |
|
|
else
|
4770 |
|
|
ASSERT FALSE REPORT "N modulus = " &int2str(alt_conv_integer(n_fast))& " "severity note;
|
4771 |
|
|
end if;
|
4772 |
|
|
n_mode_val(0) <= " ";
|
4773 |
|
|
end if;
|
4774 |
|
|
elsif (tmp_scan_data(74) = '1') then
|
4775 |
|
|
if (tmp_scan_data(72) /= '0') then
|
4776 |
|
|
is_error := true;
|
4777 |
|
|
reconfig_err <= true;
|
4778 |
|
|
ASSERT false report "Illegal value for N counter in BYPASS mode. The LSB of the counter should be set to 0 in order to operate the counter in BYPASS mode. Reconfiguration may not work." severity warning;
|
4779 |
|
|
else
|
4780 |
|
|
if (n_mode_val(0) /= "bypass") then
|
4781 |
|
|
ASSERT false REPORT "N Counter switched from enabled to BYPASS mode. PLL may lose lock." severity warning;
|
4782 |
|
|
end if;
|
4783 |
|
|
n_val(0) <= 1;
|
4784 |
|
|
n_mode_val(0) <= "bypass";
|
4785 |
|
|
end if;
|
4786 |
|
|
end if;
|
4787 |
|
|
else -- GENERAL PURPOSE PLL
|
4788 |
|
|
for i in 0 to 5 loop
|
4789 |
|
|
start_bit := 116 - (i*18);
|
4790 |
|
|
if (tmp_scan_data(start_bit + 8) = '1') then
|
4791 |
|
|
c_mode_val_tmp(i) := "bypass";
|
4792 |
|
|
if (tmp_scan_data(start_bit + 17) = '1') then
|
4793 |
|
|
c_mode_val_tmp(i) := " off";
|
4794 |
|
|
ASSERT false REPORT "The specified bit settings will turn OFF the " &cntrs(i)& "counter. It cannot be turned on unless the part is re-initialized." severity warning;
|
4795 |
|
|
end if;
|
4796 |
|
|
elsif (tmp_scan_data(start_bit + 17) = '1') then
|
4797 |
|
|
c_mode_val_tmp(i) := " odd";
|
4798 |
|
|
else
|
4799 |
|
|
c_mode_val_tmp(i) := " even";
|
4800 |
|
|
end if;
|
4801 |
|
|
high := tmp_scan_data(start_bit + 7 downto start_bit);
|
4802 |
|
|
low := tmp_scan_data(start_bit+16 downto start_bit+9);
|
4803 |
|
|
if (tmp_scan_data(start_bit+7 downto start_bit) = "00000000") then
|
4804 |
|
|
c_high_val_tmp(i) := 256;
|
4805 |
|
|
else
|
4806 |
|
|
c_high_val_tmp(i) := alt_conv_integer(high);
|
4807 |
|
|
end if;
|
4808 |
|
|
if (tmp_scan_data(start_bit+16 downto start_bit+9) = "00000000") then
|
4809 |
|
|
c_low_val_tmp(i) := 256;
|
4810 |
|
|
else
|
4811 |
|
|
c_low_val_tmp(i) := alt_conv_integer(low);
|
4812 |
|
|
end if;
|
4813 |
|
|
end loop;
|
4814 |
|
|
-- the phase taps
|
4815 |
|
|
for i in 0 to 5 loop
|
4816 |
|
|
start_bit := 14 + (i*2);
|
4817 |
|
|
if (tmp_scan_data(start_bit) = '0') then
|
4818 |
|
|
-- do nothing
|
4819 |
|
|
elsif (tmp_scan_data(start_bit) = '1') then
|
4820 |
|
|
if (tmp_scan_data(start_bit + 1) = '1') then
|
4821 |
|
|
c_ph_val_tmp(i) := c_ph_val_tmp(i) + 1;
|
4822 |
|
|
if (c_ph_val_tmp(i) > 7) then
|
4823 |
|
|
c_ph_val_tmp(i) := 0;
|
4824 |
|
|
end if;
|
4825 |
|
|
elsif (tmp_scan_data(start_bit + 1) = '0') then
|
4826 |
|
|
c_ph_val_tmp(i) := c_ph_val_tmp(i) - 1;
|
4827 |
|
|
if (c_ph_val_tmp(i) < 0) then
|
4828 |
|
|
c_ph_val_tmp(i) := 7;
|
4829 |
|
|
end if;
|
4830 |
|
|
end if;
|
4831 |
|
|
end if;
|
4832 |
|
|
end loop;
|
4833 |
|
|
sig_c_ph_val_tmp <= c_ph_val_tmp;
|
4834 |
|
|
sig_c_low_val_tmp <= c_low_val_tmp;
|
4835 |
|
|
sig_c_hi_val_tmp <= c_high_val_tmp;
|
4836 |
|
|
|
4837 |
|
|
-- cntrs M/M2
|
4838 |
|
|
for i in 0 to 1 loop
|
4839 |
|
|
start_bit := 134 + (i*10);
|
4840 |
|
|
if ( i = 0 or (i = 1 and ss > 0) ) then
|
4841 |
|
|
is_error := false;
|
4842 |
|
|
m_tmp := tmp_scan_data(start_bit+8 downto start_bit);
|
4843 |
|
|
m_val_tmp(i) := alt_conv_integer(m_tmp);
|
4844 |
|
|
if (tmp_scan_data(start_bit+9) /= '1') then
|
4845 |
|
|
if (alt_conv_integer(m_tmp) = 1) then
|
4846 |
|
|
is_error := true;
|
4847 |
|
|
reconfig_err <= true;
|
4848 |
|
|
-- cntr value is illegal : give warning
|
4849 |
|
|
ASSERT false REPORT "Illegal 1 value for " &ss_cntrs(i)& "counter. Instead " &ss_cntrs(i)& "should be BYPASSED. Reconfiguration may not work." severity warning;
|
4850 |
|
|
elsif (tmp_scan_data(start_bit+8 downto start_bit) = "000000000") then
|
4851 |
|
|
m_val_tmp(i) := 512;
|
4852 |
|
|
end if;
|
4853 |
|
|
if (not is_error) then
|
4854 |
|
|
if (m_mode_val(i) = "bypass") then
|
4855 |
|
|
-- Mode is switched : give warning
|
4856 |
|
|
ASSERT false REPORT "M Counter switched from BYPASS mode to enabled (M modulus = " &int2str(alt_conv_integer(m_tmp))& "). PLL may lose lock." severity warning;
|
4857 |
|
|
else
|
4858 |
|
|
end if;
|
4859 |
|
|
m_mode_val(i) <= " ";
|
4860 |
|
|
end if;
|
4861 |
|
|
elsif (tmp_scan_data(start_bit+9) = '1') then
|
4862 |
|
|
if (tmp_scan_data(start_bit) /= '0') then
|
4863 |
|
|
is_error := true;
|
4864 |
|
|
reconfig_err <= true;
|
4865 |
|
|
ASSERT false report "Illegal value for counter " &ss_cntrs(i)& "in BYPASS mode. The LSB of the counter should be set to 0 in order to operate the counter in BYPASS mode. Reconfiguration may not work." severity warning;
|
4866 |
|
|
else
|
4867 |
|
|
if (m_mode_val(i) /= "bypass") then
|
4868 |
|
|
-- Mode is switched : give warning
|
4869 |
|
|
ASSERT false REPORT "M Counter switched from enabled to BYPASS mode. PLL may lose lock." severity warning;
|
4870 |
|
|
end if;
|
4871 |
|
|
m_val_tmp(i) := 1;
|
4872 |
|
|
m_mode_val(i) <= "bypass";
|
4873 |
|
|
end if;
|
4874 |
|
|
end if;
|
4875 |
|
|
end if;
|
4876 |
|
|
end loop;
|
4877 |
|
|
if (ss > 0) then
|
4878 |
|
|
if (m_mode_val(0) /= m_mode_val(1)) then
|
4879 |
|
|
reconfig_err <= true;
|
4880 |
|
|
is_error := true;
|
4881 |
|
|
ASSERT false REPORT "Incompatible modes for M/M2 counters. Either both should be BYPASSED or both NON-BYPASSED. Reconfiguration may not work." severity warning;
|
4882 |
|
|
end if;
|
4883 |
|
|
end if;
|
4884 |
|
|
sig_m_val_tmp <= m_val_tmp;
|
4885 |
|
|
-- cntrs N/N2
|
4886 |
|
|
for i in 0 to 1 loop
|
4887 |
|
|
start_bit := 154 + i*10;
|
4888 |
|
|
if ( i = 0 or (i = 1 and ss > 0) ) then
|
4889 |
|
|
is_error := false;
|
4890 |
|
|
n_tmp := tmp_scan_data(start_bit+8 downto start_bit);
|
4891 |
|
|
n_val(i) <= alt_conv_integer(n_tmp);
|
4892 |
|
|
if (tmp_scan_data(start_bit+9) /= '1') then
|
4893 |
|
|
if (alt_conv_integer(n_tmp) = 1) then
|
4894 |
|
|
is_error := true;
|
4895 |
|
|
reconfig_err <= true;
|
4896 |
|
|
-- cntr value is illegal : give warning
|
4897 |
|
|
ASSERT false REPORT "Illegal 1 value for " &ss_cntrs(2+i)& "counter. Instead " &ss_cntrs(2+i)& "should be BYPASSED. Reconfiguration may not work." severity warning;
|
4898 |
|
|
elsif (alt_conv_integer(n_tmp) = 0) then
|
4899 |
|
|
n_val(i) <= 512;
|
4900 |
|
|
end if;
|
4901 |
|
|
if (not is_error) then
|
4902 |
|
|
if (n_mode_val(i) = "bypass") then
|
4903 |
|
|
ASSERT false REPORT "N Counter switched from BYPASS mode to enabled (N modulus = " &int2str(alt_conv_integer(n_tmp))& "). PLL may lose lock." severity warning;
|
4904 |
|
|
else
|
4905 |
|
|
end if;
|
4906 |
|
|
n_mode_val(i) <= " ";
|
4907 |
|
|
end if;
|
4908 |
|
|
elsif (tmp_scan_data(start_bit+9) = '1') then
|
4909 |
|
|
if (tmp_scan_data(start_bit) /= '0') then
|
4910 |
|
|
is_error := true;
|
4911 |
|
|
reconfig_err <= true;
|
4912 |
|
|
ASSERT false report "Illegal value for counter " &ss_cntrs(2+i)& "in BYPASS mode. The LSB of the counter should be set to 0 in order to operate the counter in BYPASS mode. Reconfiguration may not work." severity warning;
|
4913 |
|
|
else
|
4914 |
|
|
if (n_mode_val(i) /= "bypass") then
|
4915 |
|
|
ASSERT false REPORT "N Counter switched from enabled to BYPASS mode. PLL may lose lock." severity warning;
|
4916 |
|
|
end if;
|
4917 |
|
|
n_val(i) <= 1;
|
4918 |
|
|
n_mode_val(i) <= "bypass";
|
4919 |
|
|
end if;
|
4920 |
|
|
end if;
|
4921 |
|
|
end if;
|
4922 |
|
|
end loop;
|
4923 |
|
|
if (ss > 0) then
|
4924 |
|
|
if (n_mode_val(0) /= n_mode_val(1)) then
|
4925 |
|
|
reconfig_err <= true;
|
4926 |
|
|
is_error := true;
|
4927 |
|
|
ASSERT false REPORT "Incompatible modes for N/N2 counters. Either both should be BYPASSED or both NON-BYPASSED. Reconfiguration may not work." severity warning;
|
4928 |
|
|
end if;
|
4929 |
|
|
end if;
|
4930 |
|
|
end if;
|
4931 |
|
|
|
4932 |
|
|
slowest_clk_old := slowest_clk(c_high_val(0)+c_low_val(0), c_mode_val(0),
|
4933 |
|
|
c_high_val(1)+c_low_val(1), c_mode_val(1),
|
4934 |
|
|
c_high_val(2)+c_low_val(2), c_mode_val(2),
|
4935 |
|
|
c_high_val(3)+c_low_val(3), c_mode_val(3),
|
4936 |
|
|
c_high_val(4)+c_low_val(4), c_mode_val(4),
|
4937 |
|
|
c_high_val(5)+c_low_val(5), c_mode_val(5),
|
4938 |
|
|
sig_refclk_period, m_val(0));
|
4939 |
|
|
|
4940 |
|
|
slowest_clk_new := slowest_clk(c_high_val_tmp(0)+c_low_val_tmp(0), c_mode_val_tmp(0),
|
4941 |
|
|
c_high_val_tmp(1)+c_low_val_tmp(1), c_mode_val_tmp(1),
|
4942 |
|
|
c_high_val_tmp(2)+c_low_val_tmp(2), c_mode_val_tmp(2),
|
4943 |
|
|
c_high_val_tmp(3)+c_low_val_tmp(3), c_mode_val_tmp(3),
|
4944 |
|
|
c_high_val_tmp(4)+c_low_val_tmp(4), c_mode_val_tmp(4),
|
4945 |
|
|
c_high_val_tmp(5)+c_low_val_tmp(5), c_mode_val_tmp(5),
|
4946 |
|
|
sig_refclk_period, m_val_tmp(0));
|
4947 |
|
|
|
4948 |
|
|
if (slowest_clk_new > slowest_clk_old) then
|
4949 |
|
|
quiet_time := slowest_clk_new;
|
4950 |
|
|
else
|
4951 |
|
|
quiet_time := slowest_clk_old;
|
4952 |
|
|
end if;
|
4953 |
|
|
sig_quiet_time <= quiet_time;
|
4954 |
|
|
sig_slowest_clk_old <= slowest_clk_old;
|
4955 |
|
|
sig_slowest_clk_new <= slowest_clk_new;
|
4956 |
|
|
tmp_rem := (quiet_time/1 ps) rem (scanclk_period/ 1 ps);
|
4957 |
|
|
scanclk_cycles := (quiet_time/1 ps) / (scanclk_period/1 ps);
|
4958 |
|
|
if (tmp_rem /= 0) then
|
4959 |
|
|
scanclk_cycles := scanclk_cycles + 1;
|
4960 |
|
|
end if;
|
4961 |
|
|
scandone_tmp <= transport '1' after ((scanclk_cycles+1)*scanclk_period - (scanclk_period/2));
|
4962 |
|
|
end if;
|
4963 |
|
|
|
4964 |
|
|
if (scanwrite_enabled = '1') then
|
4965 |
|
|
if (fbclk'event and fbclk = '1') then
|
4966 |
|
|
m_val <= m_val_tmp;
|
4967 |
|
|
end if;
|
4968 |
|
|
|
4969 |
|
|
if (c_clk(0)'event and c_clk(0) = '1') then
|
4970 |
|
|
c_high_val(0) <= c_high_val_tmp(0);
|
4971 |
|
|
c_mode_val(0) <= c_mode_val_tmp(0);
|
4972 |
|
|
c0_rising_edge_transfer_done := true;
|
4973 |
|
|
end if;
|
4974 |
|
|
if (c_clk(1)'event and c_clk(1) = '1') then
|
4975 |
|
|
c_high_val(1) <= c_high_val_tmp(1);
|
4976 |
|
|
c_mode_val(1) <= c_mode_val_tmp(1);
|
4977 |
|
|
c1_rising_edge_transfer_done := true;
|
4978 |
|
|
end if;
|
4979 |
|
|
if (c_clk(2)'event and c_clk(2) = '1') then
|
4980 |
|
|
c_high_val(2) <= c_high_val_tmp(2);
|
4981 |
|
|
c_mode_val(2) <= c_mode_val_tmp(2);
|
4982 |
|
|
c2_rising_edge_transfer_done := true;
|
4983 |
|
|
end if;
|
4984 |
|
|
if (c_clk(3)'event and c_clk(3) = '1') then
|
4985 |
|
|
c_high_val(3) <= c_high_val_tmp(3);
|
4986 |
|
|
c_mode_val(3) <= c_mode_val_tmp(3);
|
4987 |
|
|
c3_rising_edge_transfer_done := true;
|
4988 |
|
|
end if;
|
4989 |
|
|
if (c_clk(4)'event and c_clk(4) = '1') then
|
4990 |
|
|
c_high_val(4) <= c_high_val_tmp(4);
|
4991 |
|
|
c_mode_val(4) <= c_mode_val_tmp(4);
|
4992 |
|
|
c4_rising_edge_transfer_done := true;
|
4993 |
|
|
end if;
|
4994 |
|
|
if (c_clk(5)'event and c_clk(5) = '1') then
|
4995 |
|
|
c_high_val(5) <= c_high_val_tmp(5);
|
4996 |
|
|
c_mode_val(5) <= c_mode_val_tmp(5);
|
4997 |
|
|
c5_rising_edge_transfer_done := true;
|
4998 |
|
|
end if;
|
4999 |
|
|
end if;
|
5000 |
|
|
|
5001 |
|
|
if (c_clk(0)'event and c_clk(0) = '0' and c0_rising_edge_transfer_done) then
|
5002 |
|
|
c_low_val(0) <= c_low_val_tmp(0);
|
5003 |
|
|
end if;
|
5004 |
|
|
if (c_clk(1)'event and c_clk(1) = '0' and c1_rising_edge_transfer_done) then
|
5005 |
|
|
c_low_val(1) <= c_low_val_tmp(1);
|
5006 |
|
|
end if;
|
5007 |
|
|
if (c_clk(2)'event and c_clk(2) = '0' and c2_rising_edge_transfer_done) then
|
5008 |
|
|
c_low_val(2) <= c_low_val_tmp(2);
|
5009 |
|
|
end if;
|
5010 |
|
|
if (c_clk(3)'event and c_clk(3) = '0' and c3_rising_edge_transfer_done) then
|
5011 |
|
|
c_low_val(3) <= c_low_val_tmp(3);
|
5012 |
|
|
end if;
|
5013 |
|
|
if (c_clk(4)'event and c_clk(4) = '0' and c4_rising_edge_transfer_done) then
|
5014 |
|
|
c_low_val(4) <= c_low_val_tmp(4);
|
5015 |
|
|
end if;
|
5016 |
|
|
if (c_clk(5)'event and c_clk(5) = '0' and c5_rising_edge_transfer_done) then
|
5017 |
|
|
c_low_val(5) <= c_low_val_tmp(5);
|
5018 |
|
|
end if;
|
5019 |
|
|
|
5020 |
|
|
if (scanwrite_enabled = '1') then
|
5021 |
|
|
for x in 0 to 7 loop
|
5022 |
|
|
if (vco_tap(x) /= vco_tap_last_value(x) and vco_tap(x) = '0') then
|
5023 |
|
|
-- TAP X has event
|
5024 |
|
|
for i in 0 to 5 loop
|
5025 |
|
|
if (c_ph_val(i) = x) then
|
5026 |
|
|
c_ph_val(i) <= c_ph_val_tmp(i);
|
5027 |
|
|
end if;
|
5028 |
|
|
end loop;
|
5029 |
|
|
if (m_ph_val = x) then
|
5030 |
|
|
m_ph_val <= m_ph_val_tmp;
|
5031 |
|
|
end if;
|
5032 |
|
|
end if;
|
5033 |
|
|
end loop;
|
5034 |
|
|
end if;
|
5035 |
|
|
|
5036 |
|
|
-- revert counter phase tap values to POF programmed values
|
5037 |
|
|
-- if PLL is reset
|
5038 |
|
|
|
5039 |
|
|
if (areset_ipd = '1') then
|
5040 |
|
|
c_ph_val <= i_c_ph;
|
5041 |
|
|
c_ph_val_tmp := i_c_ph;
|
5042 |
|
|
m_ph_val <= i_m_ph;
|
5043 |
|
|
m_ph_val_tmp := i_m_ph;
|
5044 |
|
|
end if;
|
5045 |
|
|
|
5046 |
|
|
for x in 0 to 7 loop
|
5047 |
|
|
if (vco_tap(x) /= vco_tap_last_value(x)) then
|
5048 |
|
|
-- TAP X has event
|
5049 |
|
|
for i in 0 to 5 loop
|
5050 |
|
|
if (c_ph_val(i) = x) then
|
5051 |
|
|
inclk_c_from_vco(i) <= vco_tap(x);
|
5052 |
|
|
if (i = 0 and enable0_counter = "c0") then
|
5053 |
|
|
inclk_sclkout0_from_vco <= vco_tap(x);
|
5054 |
|
|
end if;
|
5055 |
|
|
if (i = 0 and enable1_counter = "c0") then
|
5056 |
|
|
inclk_sclkout1_from_vco <= vco_tap(x);
|
5057 |
|
|
end if;
|
5058 |
|
|
if (i = 1 and enable0_counter = "c1") then
|
5059 |
|
|
inclk_sclkout0_from_vco <= vco_tap(x);
|
5060 |
|
|
end if;
|
5061 |
|
|
if (i = 1 and enable1_counter = "c1") then
|
5062 |
|
|
inclk_sclkout1_from_vco <= vco_tap(x);
|
5063 |
|
|
end if;
|
5064 |
|
|
end if;
|
5065 |
|
|
end loop;
|
5066 |
|
|
|
5067 |
|
|
if (m_ph_val = x) then
|
5068 |
|
|
inclk_m_from_vco <= vco_tap(x);
|
5069 |
|
|
end if;
|
5070 |
|
|
|
5071 |
|
|
vco_tap_last_value(x) <= vco_tap(x);
|
5072 |
|
|
end if;
|
5073 |
|
|
end loop;
|
5074 |
|
|
|
5075 |
|
|
|
5076 |
|
|
|
5077 |
|
|
if (scanclk_ipd'event and scanclk_ipd = '0') then
|
5078 |
|
|
-- enable scanwrite on falling edge
|
5079 |
|
|
scanwrite_enabled <= scanwrite_reg;
|
5080 |
|
|
end if;
|
5081 |
|
|
|
5082 |
|
|
if (scanread_reg = '1') then
|
5083 |
|
|
gated_scanclk <= transport scanclk_ipd and scanread_reg;
|
5084 |
|
|
else
|
5085 |
|
|
gated_scanclk <= transport '1';
|
5086 |
|
|
end if;
|
5087 |
|
|
|
5088 |
|
|
if (scanclk_ipd'event and scanclk_ipd = '1') then
|
5089 |
|
|
-- register scanread and scanwrite
|
5090 |
|
|
scanread_reg <= scanread_ipd;
|
5091 |
|
|
scanwrite_reg <= scanwrite_ipd;
|
5092 |
|
|
|
5093 |
|
|
if (got_first_scanclk) then
|
5094 |
|
|
scanclk_period := now - scanclk_last_rising_edge;
|
5095 |
|
|
else
|
5096 |
|
|
got_first_scanclk := true;
|
5097 |
|
|
end if;
|
5098 |
|
|
-- reset got_first_scanclk on falling edge of scanread_reg
|
5099 |
|
|
if (scanread_ipd = '0' and scanread_reg = '1') then
|
5100 |
|
|
got_first_scanclk := false;
|
5101 |
|
|
got_first_gated_scanclk := false;
|
5102 |
|
|
end if;
|
5103 |
|
|
|
5104 |
|
|
scanclk_last_rising_edge := now;
|
5105 |
|
|
end if;
|
5106 |
|
|
|
5107 |
|
|
if (gated_scanclk'event and gated_scanclk = '1' and now > 0 ps) then
|
5108 |
|
|
if (not got_first_gated_scanclk) then
|
5109 |
|
|
got_first_gated_scanclk := true;
|
5110 |
|
|
end if;
|
5111 |
|
|
for j in scan_chain_length - 1 downto 1 loop
|
5112 |
|
|
scan_data(j) <= scan_data(j-1);
|
5113 |
|
|
end loop;
|
5114 |
|
|
scan_data(0) <= scandata_ipd;
|
5115 |
|
|
end if;
|
5116 |
|
|
end process;
|
5117 |
|
|
|
5118 |
|
|
scandataout_tmp <= scan_data(FAST_SCAN_CHAIN-1) when (pll_type = "fast" or pll_type = "lvds") else scan_data(GPP_SCAN_CHAIN-1);
|
5119 |
|
|
|
5120 |
|
|
|
5121 |
|
|
SCHEDULE : process (schedule_vco, areset_ipd, ena_ipd, pfdena_ipd, refclk, fbclk, vco_out)
|
5122 |
|
|
variable sched_time : time := 0 ps;
|
5123 |
|
|
|
5124 |
|
|
TYPE time_array is ARRAY (0 to 7) of time;
|
5125 |
|
|
variable init : boolean := true;
|
5126 |
|
|
variable refclk_period : time;
|
5127 |
|
|
variable m_times_vco_period : time;
|
5128 |
|
|
variable new_m_times_vco_period : time;
|
5129 |
|
|
|
5130 |
|
|
variable phase_shift : time_array := (OTHERS => 0 ps);
|
5131 |
|
|
variable last_phase_shift : time_array := (OTHERS => 0 ps);
|
5132 |
|
|
|
5133 |
|
|
variable l_index : integer := 1;
|
5134 |
|
|
variable cycle_to_adjust : integer := 0;
|
5135 |
|
|
|
5136 |
|
|
variable stop_vco : boolean := false;
|
5137 |
|
|
|
5138 |
|
|
variable locked_tmp : std_logic := '0';
|
5139 |
|
|
variable pll_is_locked : boolean := false;
|
5140 |
|
|
variable pll_about_to_lock : boolean := false;
|
5141 |
|
|
variable cycles_to_lock : integer := 0;
|
5142 |
|
|
variable cycles_to_unlock : integer := 0;
|
5143 |
|
|
|
5144 |
|
|
variable got_first_refclk : boolean := false;
|
5145 |
|
|
variable got_second_refclk : boolean := false;
|
5146 |
|
|
variable got_first_fbclk : boolean := false;
|
5147 |
|
|
|
5148 |
|
|
variable refclk_time : time := 0 ps;
|
5149 |
|
|
variable fbclk_time : time := 0 ps;
|
5150 |
|
|
variable first_fbclk_time : time := 0 ps;
|
5151 |
|
|
|
5152 |
|
|
variable fbclk_period : time := 0 ps;
|
5153 |
|
|
|
5154 |
|
|
variable first_schedule : boolean := true;
|
5155 |
|
|
|
5156 |
|
|
variable vco_val : std_logic := '0';
|
5157 |
|
|
variable vco_period_was_phase_adjusted : boolean := false;
|
5158 |
|
|
variable phase_adjust_was_scheduled : boolean := false;
|
5159 |
|
|
|
5160 |
|
|
variable loop_xplier : integer;
|
5161 |
|
|
variable loop_initial : integer := 0;
|
5162 |
|
|
variable loop_ph : integer := 0;
|
5163 |
|
|
variable loop_time_delay : integer := 0;
|
5164 |
|
|
|
5165 |
|
|
variable initial_delay : time := 0 ps;
|
5166 |
|
|
variable vco_per : time;
|
5167 |
|
|
variable tmp_rem : integer;
|
5168 |
|
|
variable my_rem : integer;
|
5169 |
|
|
variable fbk_phase : integer := 0;
|
5170 |
|
|
|
5171 |
|
|
variable pull_back_M : integer := 0;
|
5172 |
|
|
variable total_pull_back : integer := 0;
|
5173 |
|
|
variable fbk_delay : integer := 0;
|
5174 |
|
|
|
5175 |
|
|
variable offset : time := 0 ps;
|
5176 |
|
|
|
5177 |
|
|
variable tmp_vco_per : integer := 0;
|
5178 |
|
|
variable high_time : time;
|
5179 |
|
|
variable low_time : time;
|
5180 |
|
|
|
5181 |
|
|
variable got_refclk_posedge : boolean := false;
|
5182 |
|
|
variable got_fbclk_posedge : boolean := false;
|
5183 |
|
|
variable inclk_out_of_range : boolean := false;
|
5184 |
|
|
variable no_warn : boolean := false;
|
5185 |
|
|
|
5186 |
|
|
variable ext_fbk_cntr_modulus : integer := 1;
|
5187 |
|
|
variable init_clks : boolean := true;
|
5188 |
|
|
variable pll_is_in_reset : boolean := false;
|
5189 |
|
|
variable pll_is_disabled : boolean := false;
|
5190 |
|
|
variable next_vco_sched_time : time := 0 ps;
|
5191 |
|
|
variable tap0_is_active : boolean := true;
|
5192 |
|
|
|
5193 |
|
|
begin
|
5194 |
|
|
if (init) then
|
5195 |
|
|
|
5196 |
|
|
-- jump-start the VCO
|
5197 |
|
|
-- add 1 ps delay to ensure all signals are updated to initial
|
5198 |
|
|
-- values
|
5199 |
|
|
schedule_vco <= transport not schedule_vco after 1 ps;
|
5200 |
|
|
|
5201 |
|
|
init := false;
|
5202 |
|
|
end if;
|
5203 |
|
|
|
5204 |
|
|
if (schedule_vco'event) then
|
5205 |
|
|
if (init_clks) then
|
5206 |
|
|
refclk_period := inclk0_input_frequency * n_val(0) * 1 ps;
|
5207 |
|
|
|
5208 |
|
|
m_times_vco_period := refclk_period;
|
5209 |
|
|
new_m_times_vco_period := refclk_period;
|
5210 |
|
|
init_clks := false;
|
5211 |
|
|
end if;
|
5212 |
|
|
sched_time := 0 ps;
|
5213 |
|
|
for i in 0 to 7 loop
|
5214 |
|
|
last_phase_shift(i) := phase_shift(i);
|
5215 |
|
|
end loop;
|
5216 |
|
|
cycle_to_adjust := 0;
|
5217 |
|
|
l_index := 1;
|
5218 |
|
|
m_times_vco_period := new_m_times_vco_period;
|
5219 |
|
|
end if;
|
5220 |
|
|
|
5221 |
|
|
-- areset was asserted
|
5222 |
|
|
if (areset_ipd'event and areset_ipd = '1') then
|
5223 |
|
|
assert false report family_name & " PLL was reset" severity note;
|
5224 |
|
|
-- reset lock parameters
|
5225 |
|
|
locked_tmp := '0';
|
5226 |
|
|
pll_is_locked := false;
|
5227 |
|
|
pll_about_to_lock := false;
|
5228 |
|
|
cycles_to_lock := 0;
|
5229 |
|
|
cycles_to_unlock := 0;
|
5230 |
|
|
pll_is_in_reset := true;
|
5231 |
|
|
tap0_is_active := false;
|
5232 |
|
|
for x in 0 to 7 loop
|
5233 |
|
|
vco_tap(x) <= '0';
|
5234 |
|
|
end loop;
|
5235 |
|
|
end if;
|
5236 |
|
|
|
5237 |
|
|
-- note areset deassert time
|
5238 |
|
|
-- note it as refclk_time to prevent false triggering
|
5239 |
|
|
-- of stop_vco after areset
|
5240 |
|
|
if (areset_ipd'event and areset_ipd = '0' and pll_is_in_reset) then
|
5241 |
|
|
refclk_time := now;
|
5242 |
|
|
pll_is_in_reset := false;
|
5243 |
|
|
if (ena_ipd = '1' and not stop_vco and next_vco_sched_time <= now) then
|
5244 |
|
|
schedule_vco <= not schedule_vco;
|
5245 |
|
|
end if;
|
5246 |
|
|
end if;
|
5247 |
|
|
|
5248 |
|
|
-- ena was deasserted
|
5249 |
|
|
if (ena_ipd'event and ena_ipd = '0') then
|
5250 |
|
|
assert false report family_name & " PLL was disabled" severity note;
|
5251 |
|
|
pll_is_disabled := true;
|
5252 |
|
|
tap0_is_active := false;
|
5253 |
|
|
for x in 0 to 7 loop
|
5254 |
|
|
vco_tap(x) <= '0';
|
5255 |
|
|
end loop;
|
5256 |
|
|
end if;
|
5257 |
|
|
|
5258 |
|
|
if (ena_ipd'event and ena_ipd = '1') then
|
5259 |
|
|
assert false report family_name & " PLL is enabled" severity note;
|
5260 |
|
|
pll_is_disabled := false;
|
5261 |
|
|
if (areset_ipd /= '1' and not stop_vco and next_vco_sched_time < now) then
|
5262 |
|
|
schedule_vco <= not schedule_vco;
|
5263 |
|
|
end if;
|
5264 |
|
|
end if;
|
5265 |
|
|
|
5266 |
|
|
-- illegal value on areset_ipd
|
5267 |
|
|
if (areset_ipd'event and areset_ipd = 'X') then
|
5268 |
|
|
assert false report "Illegal value 'X' detected on ARESET input" severity warning;
|
5269 |
|
|
end if;
|
5270 |
|
|
|
5271 |
|
|
if (areset_ipd = '1' or ena_ipd = '0' or stop_vco) then
|
5272 |
|
|
|
5273 |
|
|
-- reset lock parameters
|
5274 |
|
|
locked_tmp := '0';
|
5275 |
|
|
pll_is_locked := false;
|
5276 |
|
|
pll_about_to_lock := false;
|
5277 |
|
|
cycles_to_lock := 0;
|
5278 |
|
|
cycles_to_unlock := 0;
|
5279 |
|
|
|
5280 |
|
|
got_first_refclk := false;
|
5281 |
|
|
got_second_refclk := false;
|
5282 |
|
|
refclk_time := 0 ps;
|
5283 |
|
|
got_first_fbclk := false;
|
5284 |
|
|
fbclk_time := 0 ps;
|
5285 |
|
|
first_fbclk_time := 0 ps;
|
5286 |
|
|
fbclk_period := 0 ps;
|
5287 |
|
|
|
5288 |
|
|
-- first_schedule := true;
|
5289 |
|
|
-- vco_val := '0';
|
5290 |
|
|
vco_period_was_phase_adjusted := false;
|
5291 |
|
|
phase_adjust_was_scheduled := false;
|
5292 |
|
|
|
5293 |
|
|
-- reset all counter phase taps to POF programmed values
|
5294 |
|
|
end if;
|
5295 |
|
|
|
5296 |
|
|
if (schedule_vco'event and areset_ipd /= '1' and ena_ipd /= '0' and (not stop_vco) and now > 0 ps) then
|
5297 |
|
|
|
5298 |
|
|
|
5299 |
|
|
-- calculate loop_xplier : this will be different from m_val
|
5300 |
|
|
-- in external_feedback_mode
|
5301 |
|
|
loop_xplier := m_val(0);
|
5302 |
|
|
loop_initial := m_initial_val - 1;
|
5303 |
|
|
loop_ph := m_ph_val;
|
5304 |
|
|
|
5305 |
|
|
if (operation_mode = "external_feedback") then
|
5306 |
|
|
if (ext_fbk_cntr_mode = "bypass") then
|
5307 |
|
|
ext_fbk_cntr_modulus := 1;
|
5308 |
|
|
else
|
5309 |
|
|
ext_fbk_cntr_modulus := ext_fbk_cntr_high + ext_fbk_cntr_low;
|
5310 |
|
|
end if;
|
5311 |
|
|
loop_xplier := m_val(0) * (ext_fbk_cntr_modulus);
|
5312 |
|
|
loop_ph := ext_fbk_cntr_ph;
|
5313 |
|
|
loop_initial := ext_fbk_cntr_initial - 1 + ((m_initial_val - 1) * ext_fbk_cntr_modulus);
|
5314 |
|
|
end if;
|
5315 |
|
|
|
5316 |
|
|
-- convert initial value to delay
|
5317 |
|
|
initial_delay := (loop_initial * m_times_vco_period)/loop_xplier;
|
5318 |
|
|
|
5319 |
|
|
-- convert loop ph_tap to delay
|
5320 |
|
|
my_rem := (m_times_vco_period/1 ps) rem loop_xplier;
|
5321 |
|
|
tmp_vco_per := (m_times_vco_period/1 ps) / loop_xplier;
|
5322 |
|
|
if (my_rem /= 0) then
|
5323 |
|
|
tmp_vco_per := tmp_vco_per + 1;
|
5324 |
|
|
end if;
|
5325 |
|
|
fbk_phase := (loop_ph * tmp_vco_per)/8;
|
5326 |
|
|
|
5327 |
|
|
if (operation_mode = "external_feedback") then
|
5328 |
|
|
pull_back_M := (m_initial_val - 1) * ext_fbk_cntr_modulus * ((refclk_period/loop_xplier)/1 ps);
|
5329 |
|
|
while (pull_back_M > refclk_period/1 ps) loop
|
5330 |
|
|
pull_back_M := pull_back_M - refclk_period/ 1 ps;
|
5331 |
|
|
end loop;
|
5332 |
|
|
else
|
5333 |
|
|
pull_back_M := initial_delay/1 ps + fbk_phase;
|
5334 |
|
|
end if;
|
5335 |
|
|
|
5336 |
|
|
total_pull_back := pull_back_M;
|
5337 |
|
|
|
5338 |
|
|
if (simulation_type = "timing") then
|
5339 |
|
|
total_pull_back := total_pull_back + pll_compensation_delay;
|
5340 |
|
|
end if;
|
5341 |
|
|
while (total_pull_back > refclk_period/1 ps) loop
|
5342 |
|
|
total_pull_back := total_pull_back - refclk_period/1 ps;
|
5343 |
|
|
end loop;
|
5344 |
|
|
|
5345 |
|
|
if (total_pull_back > 0) then
|
5346 |
|
|
offset := refclk_period - (total_pull_back * 1 ps);
|
5347 |
|
|
end if;
|
5348 |
|
|
if (operation_mode = "external_feedback") then
|
5349 |
|
|
fbk_delay := pull_back_M;
|
5350 |
|
|
if (simulation_type = "timing") then
|
5351 |
|
|
fbk_delay := fbk_delay + pll_compensation_delay;
|
5352 |
|
|
end if;
|
5353 |
|
|
else
|
5354 |
|
|
fbk_delay := total_pull_back - fbk_phase;
|
5355 |
|
|
if (fbk_delay < 0) then
|
5356 |
|
|
offset := offset - (fbk_phase * 1 ps);
|
5357 |
|
|
fbk_delay := total_pull_back;
|
5358 |
|
|
end if;
|
5359 |
|
|
end if;
|
5360 |
|
|
|
5361 |
|
|
-- assign m_delay
|
5362 |
|
|
m_delay <= transport fbk_delay after 1 ps;
|
5363 |
|
|
|
5364 |
|
|
my_rem := (m_times_vco_period/1 ps) rem loop_xplier;
|
5365 |
|
|
for i in 1 to loop_xplier loop
|
5366 |
|
|
-- adjust cycles
|
5367 |
|
|
tmp_vco_per := (m_times_vco_period/1 ps)/loop_xplier;
|
5368 |
|
|
if (my_rem /= 0 and l_index <= my_rem) then
|
5369 |
|
|
tmp_rem := (loop_xplier * l_index) rem my_rem;
|
5370 |
|
|
cycle_to_adjust := (loop_xplier * l_index) / my_rem;
|
5371 |
|
|
if (tmp_rem /= 0) then
|
5372 |
|
|
cycle_to_adjust := cycle_to_adjust + 1;
|
5373 |
|
|
end if;
|
5374 |
|
|
end if;
|
5375 |
|
|
if (cycle_to_adjust = i) then
|
5376 |
|
|
tmp_vco_per := tmp_vco_per + 1;
|
5377 |
|
|
l_index := l_index + 1;
|
5378 |
|
|
end if;
|
5379 |
|
|
|
5380 |
|
|
-- calculate high and low periods
|
5381 |
|
|
vco_per := tmp_vco_per * 1 ps;
|
5382 |
|
|
high_time := (tmp_vco_per/2) * 1 ps;
|
5383 |
|
|
if (tmp_vco_per rem 2 /= 0) then
|
5384 |
|
|
high_time := high_time + 1 ps;
|
5385 |
|
|
end if;
|
5386 |
|
|
low_time := vco_per - high_time;
|
5387 |
|
|
|
5388 |
|
|
-- schedule the rising and falling edges
|
5389 |
|
|
for j in 1 to 2 loop
|
5390 |
|
|
vco_val := not vco_val;
|
5391 |
|
|
if (vco_val = '0') then
|
5392 |
|
|
sched_time := sched_time + high_time;
|
5393 |
|
|
elsif (vco_val = '1') then
|
5394 |
|
|
sched_time := sched_time + low_time;
|
5395 |
|
|
end if;
|
5396 |
|
|
|
5397 |
|
|
-- schedule tap0
|
5398 |
|
|
vco_out(0) <= transport vco_val after sched_time;
|
5399 |
|
|
end loop;
|
5400 |
|
|
end loop;
|
5401 |
|
|
|
5402 |
|
|
-- schedule once more
|
5403 |
|
|
if (first_schedule) then
|
5404 |
|
|
vco_val := not vco_val;
|
5405 |
|
|
if (vco_val = '0') then
|
5406 |
|
|
sched_time := sched_time + high_time;
|
5407 |
|
|
elsif (vco_val = '1') then
|
5408 |
|
|
sched_time := sched_time + low_time;
|
5409 |
|
|
end if;
|
5410 |
|
|
-- schedule tap 0
|
5411 |
|
|
vco_out(0) <= transport vco_val after sched_time;
|
5412 |
|
|
|
5413 |
|
|
first_schedule := false;
|
5414 |
|
|
end if;
|
5415 |
|
|
|
5416 |
|
|
schedule_vco <= transport not schedule_vco after sched_time;
|
5417 |
|
|
next_vco_sched_time := now + sched_time;
|
5418 |
|
|
|
5419 |
|
|
if (vco_period_was_phase_adjusted) then
|
5420 |
|
|
m_times_vco_period := refclk_period;
|
5421 |
|
|
new_m_times_vco_period := refclk_period;
|
5422 |
|
|
vco_period_was_phase_adjusted := false;
|
5423 |
|
|
phase_adjust_was_scheduled := true;
|
5424 |
|
|
|
5425 |
|
|
vco_per := m_times_vco_period/loop_xplier;
|
5426 |
|
|
for k in 0 to 7 loop
|
5427 |
|
|
phase_shift(k) := (k * vco_per)/8;
|
5428 |
|
|
end loop;
|
5429 |
|
|
end if;
|
5430 |
|
|
end if;
|
5431 |
|
|
|
5432 |
|
|
-- now schedule the other taps with the appropriate phase-shift
|
5433 |
|
|
if (vco_out(0)'event) then
|
5434 |
|
|
for k in 1 to 7 loop
|
5435 |
|
|
phase_shift(k) := (k * vco_per)/8;
|
5436 |
|
|
vco_out(k) <= transport vco_out(0) after phase_shift(k);
|
5437 |
|
|
end loop;
|
5438 |
|
|
end if;
|
5439 |
|
|
|
5440 |
|
|
if (refclk'event and refclk = '1' and areset_ipd = '0') then
|
5441 |
|
|
got_refclk_posedge := true;
|
5442 |
|
|
if (not got_first_refclk) then
|
5443 |
|
|
got_first_refclk := true;
|
5444 |
|
|
else
|
5445 |
|
|
got_second_refclk := true;
|
5446 |
|
|
refclk_period := now - refclk_time;
|
5447 |
|
|
|
5448 |
|
|
-- check if incoming freq. will cause VCO range to be
|
5449 |
|
|
-- exceeded
|
5450 |
|
|
if ( (vco_max /= 0 and vco_min /= 0 and pfdena_ipd = '1') and
|
5451 |
|
|
(((refclk_period/1 ps)/loop_xplier > vco_max) or
|
5452 |
|
|
((refclk_period/1 ps)/loop_xplier < vco_min)) ) then
|
5453 |
|
|
if (pll_is_locked) then
|
5454 |
|
|
assert false report " Input clock freq. is not within VCO range : " & family_name & " PLL may lose lock" severity warning;
|
5455 |
|
|
if (inclk_out_of_range) then
|
5456 |
|
|
pll_is_locked := false;
|
5457 |
|
|
locked_tmp := '0';
|
5458 |
|
|
pll_about_to_lock := false;
|
5459 |
|
|
cycles_to_lock := 0;
|
5460 |
|
|
vco_period_was_phase_adjusted := false;
|
5461 |
|
|
phase_adjust_was_scheduled := false;
|
5462 |
|
|
assert false report family_name & " PLL lost lock." severity note;
|
5463 |
|
|
end if;
|
5464 |
|
|
elsif (not no_warn) then
|
5465 |
|
|
assert false report " Input clock freq. is not within VCO range : " & family_name & " PLL may not lock. Please use the correct frequency." severity warning;
|
5466 |
|
|
no_warn := true;
|
5467 |
|
|
end if;
|
5468 |
|
|
inclk_out_of_range := true;
|
5469 |
|
|
else
|
5470 |
|
|
inclk_out_of_range := false;
|
5471 |
|
|
end if;
|
5472 |
|
|
end if;
|
5473 |
|
|
|
5474 |
|
|
if (stop_vco) then
|
5475 |
|
|
stop_vco := false;
|
5476 |
|
|
schedule_vco <= not schedule_vco;
|
5477 |
|
|
end if;
|
5478 |
|
|
|
5479 |
|
|
refclk_time := now;
|
5480 |
|
|
else
|
5481 |
|
|
got_refclk_posedge := false;
|
5482 |
|
|
end if;
|
5483 |
|
|
|
5484 |
|
|
if (fbclk'event and fbclk = '1') then
|
5485 |
|
|
got_fbclk_posedge := true;
|
5486 |
|
|
if (not got_first_fbclk) then
|
5487 |
|
|
got_first_fbclk := true;
|
5488 |
|
|
else
|
5489 |
|
|
fbclk_period := now - fbclk_time;
|
5490 |
|
|
end if;
|
5491 |
|
|
|
5492 |
|
|
-- need refclk_period here, so initialized to proper value above
|
5493 |
|
|
if ( ( (now - refclk_time > 1.5 * refclk_period) and pfdena_ipd = '1' and pll_is_locked) or ( (now - refclk_time > 5 * refclk_period) and pfdena_ipd = '1') ) then
|
5494 |
|
|
stop_vco := true;
|
5495 |
|
|
-- reset
|
5496 |
|
|
got_first_refclk := false;
|
5497 |
|
|
got_first_fbclk := false;
|
5498 |
|
|
got_second_refclk := false;
|
5499 |
|
|
if (pll_is_locked) then
|
5500 |
|
|
pll_is_locked := false;
|
5501 |
|
|
locked_tmp := '0';
|
5502 |
|
|
assert false report family_name & " PLL lost lock due to loss of input clock" severity note;
|
5503 |
|
|
end if;
|
5504 |
|
|
pll_about_to_lock := false;
|
5505 |
|
|
cycles_to_lock := 0;
|
5506 |
|
|
cycles_to_unlock := 0;
|
5507 |
|
|
first_schedule := true;
|
5508 |
|
|
vco_period_was_phase_adjusted := false;
|
5509 |
|
|
phase_adjust_was_scheduled := false;
|
5510 |
|
|
tap0_is_active := false;
|
5511 |
|
|
for x in 0 to 7 loop
|
5512 |
|
|
vco_tap(x) <= '0';
|
5513 |
|
|
end loop;
|
5514 |
|
|
end if;
|
5515 |
|
|
fbclk_time := now;
|
5516 |
|
|
else
|
5517 |
|
|
got_fbclk_posedge := false;
|
5518 |
|
|
end if;
|
5519 |
|
|
|
5520 |
|
|
if ((got_refclk_posedge or got_fbclk_posedge) and got_second_refclk and pfdena_ipd = '1' and (not inclk_out_of_range)) then
|
5521 |
|
|
|
5522 |
|
|
-- now we know actual incoming period
|
5523 |
|
|
if ( abs(fbclk_time - refclk_time) <= 5 ps or
|
5524 |
|
|
(got_first_fbclk and abs(refclk_period - abs(fbclk_time - refclk_time)) <= 5 ps)) then
|
5525 |
|
|
-- considered in phase
|
5526 |
|
|
if (cycles_to_lock = valid_lock_multiplier - 1) then
|
5527 |
|
|
pll_about_to_lock := true;
|
5528 |
|
|
end if;
|
5529 |
|
|
if (cycles_to_lock = valid_lock_multiplier) then
|
5530 |
|
|
if (not pll_is_locked) then
|
5531 |
|
|
assert false report family_name & " PLL locked to incoming clock" severity note;
|
5532 |
|
|
end if;
|
5533 |
|
|
pll_is_locked := true;
|
5534 |
|
|
locked_tmp := '1';
|
5535 |
|
|
cycles_to_unlock := 0;
|
5536 |
|
|
end if;
|
5537 |
|
|
-- increment lock counter only if second part of above
|
5538 |
|
|
-- time check is NOT true
|
5539 |
|
|
if (not(abs(refclk_period - abs(fbclk_time - refclk_time)) <= 5 ps)) then
|
5540 |
|
|
cycles_to_lock := cycles_to_lock + 1;
|
5541 |
|
|
end if;
|
5542 |
|
|
|
5543 |
|
|
-- adjust m_times_vco_period
|
5544 |
|
|
new_m_times_vco_period := refclk_period;
|
5545 |
|
|
else
|
5546 |
|
|
-- if locked, begin unlock
|
5547 |
|
|
if (pll_is_locked) then
|
5548 |
|
|
cycles_to_unlock := cycles_to_unlock + 1;
|
5549 |
|
|
if (cycles_to_unlock = invalid_lock_multiplier) then
|
5550 |
|
|
pll_is_locked := false;
|
5551 |
|
|
locked_tmp := '0';
|
5552 |
|
|
pll_about_to_lock := false;
|
5553 |
|
|
cycles_to_lock := 0;
|
5554 |
|
|
vco_period_was_phase_adjusted := false;
|
5555 |
|
|
phase_adjust_was_scheduled := false;
|
5556 |
|
|
assert false report family_name & " PLL lost lock." severity note;
|
5557 |
|
|
end if;
|
5558 |
|
|
end if;
|
5559 |
|
|
if ( abs(refclk_period - fbclk_period) <= 2 ps ) then
|
5560 |
|
|
-- frequency is still good
|
5561 |
|
|
if (now = fbclk_time and (not phase_adjust_was_scheduled)) then
|
5562 |
|
|
if ( abs(fbclk_time - refclk_time) > refclk_period/2) then
|
5563 |
|
|
if ( abs(fbclk_time - refclk_time) > 1.5 * refclk_period) then
|
5564 |
|
|
-- input clock may have stopped : do nothing
|
5565 |
|
|
else
|
5566 |
|
|
new_m_times_vco_period := m_times_vco_period + (refclk_period - abs(fbclk_time - refclk_time));
|
5567 |
|
|
vco_period_was_phase_adjusted := true;
|
5568 |
|
|
end if;
|
5569 |
|
|
else
|
5570 |
|
|
new_m_times_vco_period := m_times_vco_period - abs(fbclk_time - refclk_time);
|
5571 |
|
|
vco_period_was_phase_adjusted := true;
|
5572 |
|
|
end if;
|
5573 |
|
|
|
5574 |
|
|
end if;
|
5575 |
|
|
else
|
5576 |
|
|
phase_adjust_was_scheduled := false;
|
5577 |
|
|
new_m_times_vco_period := refclk_period;
|
5578 |
|
|
end if;
|
5579 |
|
|
|
5580 |
|
|
end if;
|
5581 |
|
|
end if;
|
5582 |
|
|
|
5583 |
|
|
-- check which vco_tap has event
|
5584 |
|
|
for x in 0 to 7 loop
|
5585 |
|
|
if (vco_out(x) /= vco_out_last_value(x)) then
|
5586 |
|
|
-- TAP X has event
|
5587 |
|
|
if (x = 0 and areset_ipd = '0' and ena_ipd = '1' and sig_stop_vco = '0') then
|
5588 |
|
|
if (vco_out(0) = '1') then
|
5589 |
|
|
tap0_is_active := true;
|
5590 |
|
|
end if;
|
5591 |
|
|
if (tap0_is_active) then
|
5592 |
|
|
vco_tap(0) <= vco_out(0);
|
5593 |
|
|
end if;
|
5594 |
|
|
elsif (tap0_is_active) then
|
5595 |
|
|
vco_tap(x) <= vco_out(x);
|
5596 |
|
|
end if;
|
5597 |
|
|
if (sig_stop_vco = '1') then
|
5598 |
|
|
vco_tap(x) <= '0';
|
5599 |
|
|
end if;
|
5600 |
|
|
vco_out_last_value(x) <= vco_out(x);
|
5601 |
|
|
end if;
|
5602 |
|
|
end loop;
|
5603 |
|
|
|
5604 |
|
|
if (pfdena_ipd = '0') then
|
5605 |
|
|
if (pll_is_locked) then
|
5606 |
|
|
locked_tmp := 'X';
|
5607 |
|
|
end if;
|
5608 |
|
|
pll_is_locked := false;
|
5609 |
|
|
cycles_to_lock := 0;
|
5610 |
|
|
end if;
|
5611 |
|
|
|
5612 |
|
|
-- give message only at time of deassertion
|
5613 |
|
|
if (pfdena_ipd'event and pfdena_ipd = '0') then
|
5614 |
|
|
assert false report "PFDENA deasserted." severity note;
|
5615 |
|
|
elsif (pfdena_ipd'event and pfdena_ipd = '1') then
|
5616 |
|
|
got_first_refclk := false;
|
5617 |
|
|
got_second_refclk := false;
|
5618 |
|
|
refclk_time := now;
|
5619 |
|
|
end if;
|
5620 |
|
|
|
5621 |
|
|
if (reconfig_err) then
|
5622 |
|
|
lock <= '0';
|
5623 |
|
|
else
|
5624 |
|
|
lock <= locked_tmp;
|
5625 |
|
|
end if;
|
5626 |
|
|
about_to_lock <= pll_about_to_lock after 1 ps;
|
5627 |
|
|
|
5628 |
|
|
-- signal to calculate quiet_time
|
5629 |
|
|
sig_refclk_period <= refclk_period;
|
5630 |
|
|
|
5631 |
|
|
if (stop_vco = true) then
|
5632 |
|
|
sig_stop_vco <= '1';
|
5633 |
|
|
else
|
5634 |
|
|
sig_stop_vco <= '0';
|
5635 |
|
|
end if;
|
5636 |
|
|
end process SCHEDULE;
|
5637 |
|
|
|
5638 |
|
|
clk0_tmp <= c_clk(i_clk0_counter);
|
5639 |
|
|
clk(0) <= clk0_tmp when (areset_ipd = '1' or ena_ipd = '0' or pll_in_test_mode) or (about_to_lock and (not reconfig_err)) else
|
5640 |
|
|
'X';
|
5641 |
|
|
|
5642 |
|
|
clk1_tmp <= c_clk(i_clk1_counter);
|
5643 |
|
|
clk(1) <= clk1_tmp when (areset_ipd = '1' or ena_ipd = '0' or pll_in_test_mode) or (about_to_lock and (not reconfig_err)) else
|
5644 |
|
|
'X';
|
5645 |
|
|
|
5646 |
|
|
clk2_tmp <= c_clk(i_clk2_counter);
|
5647 |
|
|
clk(2) <= clk2_tmp when (areset_ipd = '1' or ena_ipd = '0' or pll_in_test_mode) or (about_to_lock and (not reconfig_err)) else
|
5648 |
|
|
'X';
|
5649 |
|
|
|
5650 |
|
|
clk3_tmp <= c_clk(i_clk3_counter);
|
5651 |
|
|
|
5652 |
|
|
clk4_tmp <= c_clk(i_clk4_counter);
|
5653 |
|
|
|
5654 |
|
|
clk5_tmp <= c_clk(i_clk5_counter);
|
5655 |
|
|
|
5656 |
|
|
|
5657 |
|
|
|
5658 |
|
|
|
5659 |
|
|
|
5660 |
|
|
end vital_pll;
|
5661 |
|
|
-- END ARCHITECTURE VITAL_PLL
|
5662 |
|
|
|
5663 |
|
|
---------------------------------------------------------------------
|
5664 |
|
|
--
|
5665 |
|
|
-- Entity Name : cycloneii_routing_wire
|
5666 |
|
|
--
|
5667 |
|
|
-- Description : CycloneII Routing Wire VHDL simulation model
|
5668 |
|
|
--
|
5669 |
|
|
--
|
5670 |
|
|
---------------------------------------------------------------------
|
5671 |
|
|
|
5672 |
|
|
LIBRARY IEEE;
|
5673 |
|
|
use IEEE.std_logic_1164.all;
|
5674 |
|
|
use IEEE.VITAL_Timing.all;
|
5675 |
|
|
use IEEE.VITAL_Primitives.all;
|
5676 |
|
|
use work.cycloneii_atom_pack.all;
|
5677 |
|
|
|
5678 |
|
|
ENTITY cycloneii_routing_wire is
|
5679 |
|
|
generic (
|
5680 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
5681 |
|
|
XOn : Boolean := DefGlitchXOn;
|
5682 |
|
|
tpd_datain_dataout : VitalDelayType01 := DefPropDelay01;
|
5683 |
|
|
tpd_datainglitch_dataout : VitalDelayType01 := DefPropDelay01;
|
5684 |
|
|
tipd_datain : VitalDelayType01 := DefPropDelay01
|
5685 |
|
|
);
|
5686 |
|
|
PORT (
|
5687 |
|
|
datain : in std_logic;
|
5688 |
|
|
dataout : out std_logic
|
5689 |
|
|
);
|
5690 |
|
|
attribute VITAL_LEVEL0 of cycloneii_routing_wire : entity is TRUE;
|
5691 |
|
|
end cycloneii_routing_wire;
|
5692 |
|
|
|
5693 |
|
|
ARCHITECTURE behave of cycloneii_routing_wire is
|
5694 |
|
|
attribute VITAL_LEVEL0 of behave : architecture is TRUE;
|
5695 |
|
|
signal datain_ipd : std_logic;
|
5696 |
|
|
signal datainglitch_inert : std_logic;
|
5697 |
|
|
begin
|
5698 |
|
|
---------------------
|
5699 |
|
|
-- INPUT PATH DELAYs
|
5700 |
|
|
---------------------
|
5701 |
|
|
WireDelay : block
|
5702 |
|
|
begin
|
5703 |
|
|
VitalWireDelay (datain_ipd, datain, tipd_datain);
|
5704 |
|
|
end block;
|
5705 |
|
|
|
5706 |
|
|
VITAL: process(datain_ipd, datainglitch_inert)
|
5707 |
|
|
variable datain_inert_VitalGlitchData : VitalGlitchDataType;
|
5708 |
|
|
variable dataout_VitalGlitchData : VitalGlitchDataType;
|
5709 |
|
|
|
5710 |
|
|
begin
|
5711 |
|
|
----------------------
|
5712 |
|
|
-- Path Delay Section
|
5713 |
|
|
----------------------
|
5714 |
|
|
VitalPathDelay01 (
|
5715 |
|
|
OutSignal => datainglitch_inert,
|
5716 |
|
|
OutSignalName => "datainglitch_inert",
|
5717 |
|
|
OutTemp => datain_ipd,
|
5718 |
|
|
Paths => (1 => (datain_ipd'last_event, tpd_datainglitch_dataout, TRUE)),
|
5719 |
|
|
GlitchData => datain_inert_VitalGlitchData,
|
5720 |
|
|
Mode => VitalInertial,
|
5721 |
|
|
XOn => XOn,
|
5722 |
|
|
MsgOn => MsgOn );
|
5723 |
|
|
|
5724 |
|
|
VitalPathDelay01 (
|
5725 |
|
|
OutSignal => dataout,
|
5726 |
|
|
OutSignalName => "dataout",
|
5727 |
|
|
OutTemp => datainglitch_inert,
|
5728 |
|
|
Paths => (1 => (datain_ipd'last_event, tpd_datain_dataout, TRUE)),
|
5729 |
|
|
GlitchData => dataout_VitalGlitchData,
|
5730 |
|
|
Mode => DefGlitchMode,
|
5731 |
|
|
XOn => XOn,
|
5732 |
|
|
MsgOn => MsgOn );
|
5733 |
|
|
|
5734 |
|
|
end process;
|
5735 |
|
|
|
5736 |
|
|
end behave;
|
5737 |
|
|
---------------------------------------------------------------------
|
5738 |
|
|
--
|
5739 |
|
|
-- Entity Name : cycloneii_lcell_ff
|
5740 |
|
|
--
|
5741 |
|
|
-- Description : Cyclone II LCELL_FF VHDL simulation model
|
5742 |
|
|
--
|
5743 |
|
|
--
|
5744 |
|
|
---------------------------------------------------------------------
|
5745 |
|
|
|
5746 |
|
|
LIBRARY IEEE;
|
5747 |
|
|
use IEEE.std_logic_1164.all;
|
5748 |
|
|
use IEEE.VITAL_Timing.all;
|
5749 |
|
|
use IEEE.VITAL_Primitives.all;
|
5750 |
|
|
use work.cycloneii_atom_pack.all;
|
5751 |
|
|
use work.cycloneii_and1;
|
5752 |
|
|
|
5753 |
|
|
entity cycloneii_lcell_ff is
|
5754 |
|
|
generic (
|
5755 |
|
|
x_on_violation : string := "on";
|
5756 |
|
|
lpm_type : string := "cycloneii_lcell_ff";
|
5757 |
|
|
tsetup_datain_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
5758 |
|
|
tsetup_sdata_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
5759 |
|
|
tsetup_sclr_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
5760 |
|
|
tsetup_sload_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
5761 |
|
|
tsetup_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
5762 |
|
|
thold_datain_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
5763 |
|
|
thold_sdata_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
5764 |
|
|
thold_sclr_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
5765 |
|
|
thold_sload_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
5766 |
|
|
thold_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
5767 |
|
|
tpd_clk_regout_posedge : VitalDelayType01 := DefPropDelay01;
|
5768 |
|
|
tpd_aclr_regout_posedge : VitalDelayType01 := DefPropDelay01;
|
5769 |
|
|
tpd_sdata_regout: VitalDelayType01 := DefPropDelay01;
|
5770 |
|
|
tipd_clk : VitalDelayType01 := DefPropDelay01;
|
5771 |
|
|
tipd_datain : VitalDelayType01 := DefPropDelay01;
|
5772 |
|
|
tipd_sdata : VitalDelayType01 := DefPropDelay01;
|
5773 |
|
|
tipd_sclr : VitalDelayType01 := DefPropDelay01;
|
5774 |
|
|
tipd_sload : VitalDelayType01 := DefPropDelay01;
|
5775 |
|
|
tipd_aclr : VitalDelayType01 := DefPropDelay01;
|
5776 |
|
|
tipd_ena : VitalDelayType01 := DefPropDelay01;
|
5777 |
|
|
TimingChecksOn: Boolean := True;
|
5778 |
|
|
MsgOn: Boolean := DefGlitchMsgOn;
|
5779 |
|
|
XOn: Boolean := DefGlitchXOn;
|
5780 |
|
|
MsgOnChecks: Boolean := DefMsgOnChecks;
|
5781 |
|
|
XOnChecks: Boolean := DefXOnChecks;
|
5782 |
|
|
InstancePath: STRING := "*"
|
5783 |
|
|
);
|
5784 |
|
|
|
5785 |
|
|
port (
|
5786 |
|
|
datain : in std_logic := '0';
|
5787 |
|
|
clk : in std_logic := '0';
|
5788 |
|
|
aclr : in std_logic := '0';
|
5789 |
|
|
sclr : in std_logic := '0';
|
5790 |
|
|
sload : in std_logic := '0';
|
5791 |
|
|
ena : in std_logic := '1';
|
5792 |
|
|
sdata : in std_logic := '0';
|
5793 |
|
|
devclrn : in std_logic := '1';
|
5794 |
|
|
devpor : in std_logic := '1';
|
5795 |
|
|
regout : out std_logic
|
5796 |
|
|
);
|
5797 |
|
|
attribute VITAL_LEVEL0 of cycloneii_lcell_ff : entity is TRUE;
|
5798 |
|
|
end cycloneii_lcell_ff;
|
5799 |
|
|
|
5800 |
|
|
architecture vital_lcell_ff of cycloneii_lcell_ff is
|
5801 |
|
|
attribute VITAL_LEVEL0 of vital_lcell_ff : architecture is TRUE;
|
5802 |
|
|
signal clk_ipd : std_logic;
|
5803 |
|
|
signal datain_ipd : std_logic;
|
5804 |
|
|
signal datain_dly : std_logic;
|
5805 |
|
|
signal sdata_ipd : std_logic;
|
5806 |
|
|
signal sdata_dly : std_logic;
|
5807 |
|
|
signal sdata_dly1 : std_logic;
|
5808 |
|
|
signal sclr_ipd : std_logic;
|
5809 |
|
|
signal sload_ipd : std_logic;
|
5810 |
|
|
signal aclr_ipd : std_logic;
|
5811 |
|
|
signal ena_ipd : std_logic;
|
5812 |
|
|
|
5813 |
|
|
component cycloneii_and1
|
5814 |
|
|
generic (XOn : Boolean := DefGlitchXOn;
|
5815 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
5816 |
|
|
tpd_IN1_Y : VitalDelayType01 := DefPropDelay01;
|
5817 |
|
|
tipd_IN1 : VitalDelayType01 := DefPropDelay01
|
5818 |
|
|
);
|
5819 |
|
|
|
5820 |
|
|
port (Y : out STD_LOGIC;
|
5821 |
|
|
IN1 : in STD_LOGIC
|
5822 |
|
|
);
|
5823 |
|
|
end component;
|
5824 |
|
|
|
5825 |
|
|
begin
|
5826 |
|
|
|
5827 |
|
|
dataindelaybuffer: cycloneii_and1
|
5828 |
|
|
port map(IN1 => datain_ipd,
|
5829 |
|
|
Y => datain_dly);
|
5830 |
|
|
|
5831 |
|
|
sdatadelaybuffer: cycloneii_and1
|
5832 |
|
|
port map(IN1 => sdata_ipd,
|
5833 |
|
|
Y => sdata_dly);
|
5834 |
|
|
|
5835 |
|
|
sdatadelaybuffer1: cycloneii_and1
|
5836 |
|
|
port map(IN1 => sdata_dly,
|
5837 |
|
|
Y => sdata_dly1);
|
5838 |
|
|
|
5839 |
|
|
|
5840 |
|
|
---------------------
|
5841 |
|
|
-- INPUT PATH DELAYs
|
5842 |
|
|
---------------------
|
5843 |
|
|
WireDelay : block
|
5844 |
|
|
begin
|
5845 |
|
|
VitalWireDelay (clk_ipd, clk, tipd_clk);
|
5846 |
|
|
VitalWireDelay (datain_ipd, datain, tipd_datain);
|
5847 |
|
|
VitalWireDelay (sdata_ipd, sdata, tipd_sdata);
|
5848 |
|
|
VitalWireDelay (sclr_ipd, sclr, tipd_sclr);
|
5849 |
|
|
VitalWireDelay (sload_ipd, sload, tipd_sload);
|
5850 |
|
|
VitalWireDelay (aclr_ipd, aclr, tipd_aclr);
|
5851 |
|
|
VitalWireDelay (ena_ipd, ena, tipd_ena);
|
5852 |
|
|
end block;
|
5853 |
|
|
|
5854 |
|
|
VITALtiming : process (clk_ipd, datain_dly, sdata_dly1,
|
5855 |
|
|
sclr_ipd, sload_ipd, aclr_ipd,
|
5856 |
|
|
ena_ipd, devclrn, devpor)
|
5857 |
|
|
|
5858 |
|
|
variable Tviol_datain_clk : std_ulogic := '0';
|
5859 |
|
|
variable Tviol_sdata_clk : std_ulogic := '0';
|
5860 |
|
|
variable Tviol_sclr_clk : std_ulogic := '0';
|
5861 |
|
|
variable Tviol_sload_clk : std_ulogic := '0';
|
5862 |
|
|
variable Tviol_ena_clk : std_ulogic := '0';
|
5863 |
|
|
variable TimingData_datain_clk : VitalTimingDataType := VitalTimingDataInit;
|
5864 |
|
|
variable TimingData_sdata_clk : VitalTimingDataType := VitalTimingDataInit;
|
5865 |
|
|
variable TimingData_sclr_clk : VitalTimingDataType := VitalTimingDataInit;
|
5866 |
|
|
variable TimingData_sload_clk : VitalTimingDataType := VitalTimingDataInit;
|
5867 |
|
|
variable TimingData_ena_clk : VitalTimingDataType := VitalTimingDataInit;
|
5868 |
|
|
variable regout_VitalGlitchData : VitalGlitchDataType;
|
5869 |
|
|
|
5870 |
|
|
variable iregout : std_logic := '0';
|
5871 |
|
|
variable idata: std_logic := '0';
|
5872 |
|
|
|
5873 |
|
|
-- variables for 'X' generation
|
5874 |
|
|
variable violation : std_logic := '0';
|
5875 |
|
|
|
5876 |
|
|
begin
|
5877 |
|
|
|
5878 |
|
|
------------------------
|
5879 |
|
|
-- Timing Check Section
|
5880 |
|
|
------------------------
|
5881 |
|
|
if (TimingChecksOn) then
|
5882 |
|
|
|
5883 |
|
|
VitalSetupHoldCheck (
|
5884 |
|
|
Violation => Tviol_datain_clk,
|
5885 |
|
|
TimingData => TimingData_datain_clk,
|
5886 |
|
|
TestSignal => datain,
|
5887 |
|
|
TestSignalName => "DATAIN",
|
5888 |
|
|
RefSignal => clk_ipd,
|
5889 |
|
|
RefSignalName => "CLK",
|
5890 |
|
|
SetupHigh => tsetup_datain_clk_noedge_posedge,
|
5891 |
|
|
SetupLow => tsetup_datain_clk_noedge_posedge,
|
5892 |
|
|
HoldHigh => thold_datain_clk_noedge_posedge,
|
5893 |
|
|
HoldLow => thold_datain_clk_noedge_posedge,
|
5894 |
|
|
CheckEnabled => TO_X01((aclr_ipd) OR
|
5895 |
|
|
(sload_ipd) OR
|
5896 |
|
|
(sclr_ipd) OR
|
5897 |
|
|
(NOT devpor) OR
|
5898 |
|
|
(NOT devclrn) OR
|
5899 |
|
|
(NOT ena_ipd)) /= '1',
|
5900 |
|
|
RefTransition => '/',
|
5901 |
|
|
HeaderMsg => InstancePath & "/LCELL_FF",
|
5902 |
|
|
XOn => XOnChecks,
|
5903 |
|
|
MsgOn => MsgOnChecks );
|
5904 |
|
|
|
5905 |
|
|
VitalSetupHoldCheck (
|
5906 |
|
|
Violation => Tviol_sdata_clk,
|
5907 |
|
|
TimingData => TimingData_sdata_clk,
|
5908 |
|
|
TestSignal => sdata_ipd,
|
5909 |
|
|
TestSignalName => "SDATA",
|
5910 |
|
|
RefSignal => clk_ipd,
|
5911 |
|
|
RefSignalName => "CLK",
|
5912 |
|
|
SetupHigh => tsetup_sdata_clk_noedge_posedge,
|
5913 |
|
|
SetupLow => tsetup_sdata_clk_noedge_posedge,
|
5914 |
|
|
HoldHigh => thold_sdata_clk_noedge_posedge,
|
5915 |
|
|
HoldLow => thold_sdata_clk_noedge_posedge,
|
5916 |
|
|
CheckEnabled => TO_X01((aclr_ipd) OR
|
5917 |
|
|
(NOT sload_ipd) OR
|
5918 |
|
|
(NOT devpor) OR
|
5919 |
|
|
(NOT devclrn) OR
|
5920 |
|
|
(NOT ena_ipd)) /= '1',
|
5921 |
|
|
RefTransition => '/',
|
5922 |
|
|
HeaderMsg => InstancePath & "/LCELL_FF",
|
5923 |
|
|
XOn => XOnChecks,
|
5924 |
|
|
MsgOn => MsgOnChecks );
|
5925 |
|
|
|
5926 |
|
|
VitalSetupHoldCheck (
|
5927 |
|
|
Violation => Tviol_sclr_clk,
|
5928 |
|
|
TimingData => TimingData_sclr_clk,
|
5929 |
|
|
TestSignal => sclr_ipd,
|
5930 |
|
|
TestSignalName => "SCLR",
|
5931 |
|
|
RefSignal => clk_ipd,
|
5932 |
|
|
RefSignalName => "CLK",
|
5933 |
|
|
SetupHigh => tsetup_sclr_clk_noedge_posedge,
|
5934 |
|
|
SetupLow => tsetup_sclr_clk_noedge_posedge,
|
5935 |
|
|
HoldHigh => thold_sclr_clk_noedge_posedge,
|
5936 |
|
|
HoldLow => thold_sclr_clk_noedge_posedge,
|
5937 |
|
|
CheckEnabled => TO_X01((aclr_ipd) OR
|
5938 |
|
|
(NOT devpor) OR
|
5939 |
|
|
(NOT devclrn) OR
|
5940 |
|
|
(NOT ena_ipd)) /= '1',
|
5941 |
|
|
RefTransition => '/',
|
5942 |
|
|
HeaderMsg => InstancePath & "/LCELL_FF",
|
5943 |
|
|
XOn => XOnChecks,
|
5944 |
|
|
MsgOn => MsgOnChecks );
|
5945 |
|
|
|
5946 |
|
|
VitalSetupHoldCheck (
|
5947 |
|
|
Violation => Tviol_sload_clk,
|
5948 |
|
|
TimingData => TimingData_sload_clk,
|
5949 |
|
|
TestSignal => sload_ipd,
|
5950 |
|
|
TestSignalName => "SLOAD",
|
5951 |
|
|
RefSignal => clk_ipd,
|
5952 |
|
|
RefSignalName => "CLK",
|
5953 |
|
|
SetupHigh => tsetup_sload_clk_noedge_posedge,
|
5954 |
|
|
SetupLow => tsetup_sload_clk_noedge_posedge,
|
5955 |
|
|
HoldHigh => thold_sload_clk_noedge_posedge,
|
5956 |
|
|
HoldLow => thold_sload_clk_noedge_posedge,
|
5957 |
|
|
CheckEnabled => TO_X01((aclr_ipd) OR
|
5958 |
|
|
(NOT devpor) OR
|
5959 |
|
|
(NOT devclrn) OR
|
5960 |
|
|
(NOT ena_ipd)) /= '1',
|
5961 |
|
|
RefTransition => '/',
|
5962 |
|
|
HeaderMsg => InstancePath & "/LCELL_FF",
|
5963 |
|
|
XOn => XOnChecks,
|
5964 |
|
|
MsgOn => MsgOnChecks );
|
5965 |
|
|
|
5966 |
|
|
VitalSetupHoldCheck (
|
5967 |
|
|
Violation => Tviol_ena_clk,
|
5968 |
|
|
TimingData => TimingData_ena_clk,
|
5969 |
|
|
TestSignal => ena_ipd,
|
5970 |
|
|
TestSignalName => "ENA",
|
5971 |
|
|
RefSignal => clk_ipd,
|
5972 |
|
|
RefSignalName => "CLK",
|
5973 |
|
|
SetupHigh => tsetup_ena_clk_noedge_posedge,
|
5974 |
|
|
SetupLow => tsetup_ena_clk_noedge_posedge,
|
5975 |
|
|
HoldHigh => thold_ena_clk_noedge_posedge,
|
5976 |
|
|
HoldLow => thold_ena_clk_noedge_posedge,
|
5977 |
|
|
CheckEnabled => TO_X01((aclr_ipd) OR
|
5978 |
|
|
(NOT devpor) OR
|
5979 |
|
|
(NOT devclrn) ) /= '1',
|
5980 |
|
|
RefTransition => '/',
|
5981 |
|
|
HeaderMsg => InstancePath & "/LCELL_FF",
|
5982 |
|
|
XOn => XOnChecks,
|
5983 |
|
|
MsgOn => MsgOnChecks );
|
5984 |
|
|
|
5985 |
|
|
end if;
|
5986 |
|
|
|
5987 |
|
|
violation := Tviol_datain_clk or Tviol_sdata_clk or
|
5988 |
|
|
Tviol_sclr_clk or Tviol_sload_clk or Tviol_ena_clk;
|
5989 |
|
|
|
5990 |
|
|
|
5991 |
|
|
if ((devpor = '0') or (devclrn = '0') or (aclr_ipd = '1')) then
|
5992 |
|
|
iregout := '0';
|
5993 |
|
|
elsif (violation = 'X' and x_on_violation = "on") then
|
5994 |
|
|
iregout := 'X';
|
5995 |
|
|
elsif clk_ipd'event and clk_ipd = '1' and clk_ipd'last_value = '0' then
|
5996 |
|
|
if (ena_ipd = '1') then
|
5997 |
|
|
if (sclr_ipd = '1') then
|
5998 |
|
|
iregout := '0';
|
5999 |
|
|
elsif (sload_ipd = '1') then
|
6000 |
|
|
iregout := sdata_dly1;
|
6001 |
|
|
else
|
6002 |
|
|
iregout := datain_dly;
|
6003 |
|
|
end if;
|
6004 |
|
|
end if;
|
6005 |
|
|
end if;
|
6006 |
|
|
|
6007 |
|
|
----------------------
|
6008 |
|
|
-- Path Delay Section
|
6009 |
|
|
----------------------
|
6010 |
|
|
VitalPathDelay01 (
|
6011 |
|
|
OutSignal => regout,
|
6012 |
|
|
OutSignalName => "REGOUT",
|
6013 |
|
|
OutTemp => iregout,
|
6014 |
|
|
Paths => (0 => (aclr_ipd'last_event, tpd_aclr_regout_posedge, TRUE),
|
6015 |
|
|
1 => (sdata_ipd'last_event, tpd_sdata_regout, TRUE),
|
6016 |
|
|
2 => (clk_ipd'last_event, tpd_clk_regout_posedge, TRUE)),
|
6017 |
|
|
GlitchData => regout_VitalGlitchData,
|
6018 |
|
|
Mode => DefGlitchMode,
|
6019 |
|
|
XOn => XOn,
|
6020 |
|
|
MsgOn => MsgOn );
|
6021 |
|
|
|
6022 |
|
|
end process;
|
6023 |
|
|
|
6024 |
|
|
end vital_lcell_ff;
|
6025 |
|
|
|
6026 |
|
|
---------------------------------------------------------------------
|
6027 |
|
|
--
|
6028 |
|
|
-- Entity Name : cycloneii_lcell_comb
|
6029 |
|
|
--
|
6030 |
|
|
-- Description : Cyclone II LCELL_COMB VHDL simulation model
|
6031 |
|
|
--
|
6032 |
|
|
--
|
6033 |
|
|
---------------------------------------------------------------------
|
6034 |
|
|
|
6035 |
|
|
LIBRARY IEEE;
|
6036 |
|
|
use IEEE.std_logic_1164.all;
|
6037 |
|
|
use IEEE.VITAL_Timing.all;
|
6038 |
|
|
use IEEE.VITAL_Primitives.all;
|
6039 |
|
|
use work.cycloneii_atom_pack.all;
|
6040 |
|
|
|
6041 |
|
|
entity cycloneii_lcell_comb is
|
6042 |
|
|
generic (
|
6043 |
|
|
lut_mask : std_logic_vector(15 downto 0) := (OTHERS => '1');
|
6044 |
|
|
sum_lutc_input : string := "datac";
|
6045 |
|
|
lpm_type : string := "cycloneii_lcell_comb";
|
6046 |
|
|
TimingChecksOn: Boolean := True;
|
6047 |
|
|
MsgOn: Boolean := DefGlitchMsgOn;
|
6048 |
|
|
XOn: Boolean := DefGlitchXOn;
|
6049 |
|
|
MsgOnChecks: Boolean := DefMsgOnChecks;
|
6050 |
|
|
XOnChecks: Boolean := DefXOnChecks;
|
6051 |
|
|
InstancePath: STRING := "*";
|
6052 |
|
|
tpd_dataa_combout : VitalDelayType01 := DefPropDelay01;
|
6053 |
|
|
tpd_datab_combout : VitalDelayType01 := DefPropDelay01;
|
6054 |
|
|
tpd_datac_combout : VitalDelayType01 := DefPropDelay01;
|
6055 |
|
|
tpd_datad_combout : VitalDelayType01 := DefPropDelay01;
|
6056 |
|
|
tpd_cin_combout : VitalDelayType01 := DefPropDelay01;
|
6057 |
|
|
tpd_dataa_cout : VitalDelayType01 := DefPropDelay01;
|
6058 |
|
|
tpd_datab_cout : VitalDelayType01 := DefPropDelay01;
|
6059 |
|
|
tpd_datac_cout : VitalDelayType01 := DefPropDelay01;
|
6060 |
|
|
tpd_datad_cout : VitalDelayType01 := DefPropDelay01;
|
6061 |
|
|
tpd_cin_cout : VitalDelayType01 := DefPropDelay01;
|
6062 |
|
|
tipd_dataa : VitalDelayType01 := DefPropDelay01;
|
6063 |
|
|
tipd_datab : VitalDelayType01 := DefPropDelay01;
|
6064 |
|
|
tipd_datac : VitalDelayType01 := DefPropDelay01;
|
6065 |
|
|
tipd_datad : VitalDelayType01 := DefPropDelay01;
|
6066 |
|
|
tipd_cin : VitalDelayType01 := DefPropDelay01
|
6067 |
|
|
);
|
6068 |
|
|
|
6069 |
|
|
port (
|
6070 |
|
|
dataa : in std_logic := '1';
|
6071 |
|
|
datab : in std_logic := '1';
|
6072 |
|
|
datac : in std_logic := '1';
|
6073 |
|
|
datad : in std_logic := '1';
|
6074 |
|
|
cin : in std_logic := '0';
|
6075 |
|
|
combout : out std_logic;
|
6076 |
|
|
cout : out std_logic
|
6077 |
|
|
);
|
6078 |
|
|
attribute VITAL_LEVEL0 of cycloneii_lcell_comb : entity is TRUE;
|
6079 |
|
|
end cycloneii_lcell_comb;
|
6080 |
|
|
|
6081 |
|
|
architecture vital_lcell_comb of cycloneii_lcell_comb is
|
6082 |
|
|
attribute VITAL_LEVEL0 of vital_lcell_comb : architecture is TRUE;
|
6083 |
|
|
signal dataa_ipd : std_logic;
|
6084 |
|
|
signal datab_ipd : std_logic;
|
6085 |
|
|
signal datac_ipd : std_logic;
|
6086 |
|
|
signal datad_ipd : std_logic;
|
6087 |
|
|
signal cin_ipd : std_logic;
|
6088 |
|
|
begin
|
6089 |
|
|
|
6090 |
|
|
---------------------
|
6091 |
|
|
-- INPUT PATH DELAYs
|
6092 |
|
|
---------------------
|
6093 |
|
|
WireDelay : block
|
6094 |
|
|
begin
|
6095 |
|
|
VitalWireDelay (dataa_ipd, dataa, tipd_dataa);
|
6096 |
|
|
VitalWireDelay (datab_ipd, datab, tipd_datab);
|
6097 |
|
|
VitalWireDelay (datac_ipd, datac, tipd_datac);
|
6098 |
|
|
VitalWireDelay (datad_ipd, datad, tipd_datad);
|
6099 |
|
|
VitalWireDelay (cin_ipd, cin, tipd_cin);
|
6100 |
|
|
end block;
|
6101 |
|
|
|
6102 |
|
|
VITALtiming : process(dataa_ipd, datab_ipd, datac_ipd, datad_ipd,
|
6103 |
|
|
cin_ipd)
|
6104 |
|
|
|
6105 |
|
|
variable combout_VitalGlitchData : VitalGlitchDataType;
|
6106 |
|
|
variable cout_VitalGlitchData : VitalGlitchDataType;
|
6107 |
|
|
-- output variables
|
6108 |
|
|
variable combout_tmp : std_logic;
|
6109 |
|
|
variable cout_tmp : std_logic;
|
6110 |
|
|
|
6111 |
|
|
begin
|
6112 |
|
|
|
6113 |
|
|
-- lut_mask_var := lut_mask;
|
6114 |
|
|
|
6115 |
|
|
------------------------
|
6116 |
|
|
-- Timing Check Section
|
6117 |
|
|
------------------------
|
6118 |
|
|
|
6119 |
|
|
if (sum_lutc_input = "datac") then
|
6120 |
|
|
-- combout
|
6121 |
|
|
combout_tmp := VitalMUX(data => lut_mask,
|
6122 |
|
|
dselect => (datad_ipd,
|
6123 |
|
|
datac_ipd,
|
6124 |
|
|
datab_ipd,
|
6125 |
|
|
dataa_ipd));
|
6126 |
|
|
elsif (sum_lutc_input = "cin") then
|
6127 |
|
|
-- combout
|
6128 |
|
|
combout_tmp := VitalMUX(data => lut_mask,
|
6129 |
|
|
dselect => (datad_ipd,
|
6130 |
|
|
cin_ipd,
|
6131 |
|
|
datab_ipd,
|
6132 |
|
|
dataa_ipd));
|
6133 |
|
|
end if;
|
6134 |
|
|
|
6135 |
|
|
-- cout
|
6136 |
|
|
cout_tmp := VitalMUX(data => lut_mask,
|
6137 |
|
|
dselect => ('0',
|
6138 |
|
|
cin_ipd,
|
6139 |
|
|
datab_ipd,
|
6140 |
|
|
dataa_ipd));
|
6141 |
|
|
|
6142 |
|
|
----------------------
|
6143 |
|
|
-- Path Delay Section
|
6144 |
|
|
----------------------
|
6145 |
|
|
|
6146 |
|
|
VitalPathDelay01 (
|
6147 |
|
|
OutSignal => combout,
|
6148 |
|
|
OutSignalName => "COMBOUT",
|
6149 |
|
|
OutTemp => combout_tmp,
|
6150 |
|
|
Paths => (0 => (dataa_ipd'last_event, tpd_dataa_combout, TRUE),
|
6151 |
|
|
1 => (datab_ipd'last_event, tpd_datab_combout, TRUE),
|
6152 |
|
|
2 => (datac_ipd'last_event, tpd_datac_combout, TRUE),
|
6153 |
|
|
3 => (datad_ipd'last_event, tpd_datad_combout, TRUE),
|
6154 |
|
|
4 => (cin_ipd'last_event, tpd_cin_combout, TRUE)),
|
6155 |
|
|
GlitchData => combout_VitalGlitchData,
|
6156 |
|
|
Mode => DefGlitchMode,
|
6157 |
|
|
XOn => XOn,
|
6158 |
|
|
MsgOn => MsgOn );
|
6159 |
|
|
|
6160 |
|
|
VitalPathDelay01 (
|
6161 |
|
|
OutSignal => cout,
|
6162 |
|
|
OutSignalName => "COUT",
|
6163 |
|
|
OutTemp => cout_tmp,
|
6164 |
|
|
Paths => (0 => (dataa_ipd'last_event, tpd_dataa_cout, TRUE),
|
6165 |
|
|
1 => (datab_ipd'last_event, tpd_datab_cout, TRUE),
|
6166 |
|
|
2 => (datac_ipd'last_event, tpd_datac_cout, TRUE),
|
6167 |
|
|
3 => (datad_ipd'last_event, tpd_datad_cout, TRUE),
|
6168 |
|
|
4 => (cin_ipd'last_event, tpd_cin_cout, TRUE)),
|
6169 |
|
|
GlitchData => cout_VitalGlitchData,
|
6170 |
|
|
Mode => DefGlitchMode,
|
6171 |
|
|
XOn => XOn,
|
6172 |
|
|
MsgOn => MsgOn );
|
6173 |
|
|
|
6174 |
|
|
end process;
|
6175 |
|
|
|
6176 |
|
|
end vital_lcell_comb;
|
6177 |
|
|
|
6178 |
|
|
--
|
6179 |
|
|
--
|
6180 |
|
|
-- CYCLONEII_ASYNCH_IO Model
|
6181 |
|
|
--
|
6182 |
|
|
--
|
6183 |
|
|
LIBRARY IEEE;
|
6184 |
|
|
use IEEE.std_logic_1164.all;
|
6185 |
|
|
use IEEE.std_logic_arith.all;
|
6186 |
|
|
use IEEE.VITAL_Timing.all;
|
6187 |
|
|
use IEEE.VITAL_Primitives.all;
|
6188 |
|
|
use work.cycloneii_atom_pack.all;
|
6189 |
|
|
|
6190 |
|
|
entity cycloneii_asynch_io is
|
6191 |
|
|
generic(
|
6192 |
|
|
operation_mode : STRING := "input";
|
6193 |
|
|
open_drain_output : STRING := "false";
|
6194 |
|
|
bus_hold : STRING := "false";
|
6195 |
|
|
use_differential_input : STRING := "false";
|
6196 |
|
|
|
6197 |
|
|
XOn: Boolean := DefGlitchXOn;
|
6198 |
|
|
MsgOn: Boolean := DefGlitchMsgOn;
|
6199 |
|
|
|
6200 |
|
|
tpd_padio_differentialout : VitalDelayType01 := DefPropDelay01;
|
6201 |
|
|
tpd_differentialin_combout : VitalDelayType01 := DefPropDelay01;
|
6202 |
|
|
|
6203 |
|
|
tpd_datain_padio : VitalDelayType01 := DefPropDelay01;
|
6204 |
|
|
tpd_oe_padio_posedge : VitalDelayType01 := DefPropDelay01;
|
6205 |
|
|
tpd_oe_padio_negedge : VitalDelayType01 := DefPropDelay01;
|
6206 |
|
|
tpd_padio_combout : VitalDelayType01 := DefPropDelay01;
|
6207 |
|
|
tpd_regin_regout : VitalDelayType01 := DefPropDelay01;
|
6208 |
|
|
|
6209 |
|
|
tipd_differentialin : VitalDelayType01 := DefPropDelay01;
|
6210 |
|
|
|
6211 |
|
|
tipd_datain : VitalDelayType01 := DefPropDelay01;
|
6212 |
|
|
tipd_oe : VitalDelayType01 := DefPropDelay01;
|
6213 |
|
|
tipd_padio : VitalDelayType01 := DefPropDelay01);
|
6214 |
|
|
port(
|
6215 |
|
|
datain : in STD_LOGIC := '0';
|
6216 |
|
|
oe : in STD_LOGIC := '1';
|
6217 |
|
|
regin : in STD_LOGIC;
|
6218 |
|
|
differentialin : in STD_LOGIC;
|
6219 |
|
|
differentialout : out STD_LOGIC;
|
6220 |
|
|
padio : inout STD_LOGIC;
|
6221 |
|
|
combout : out STD_LOGIC;
|
6222 |
|
|
regout : out STD_LOGIC);
|
6223 |
|
|
|
6224 |
|
|
attribute VITAL_LEVEL0 of cycloneii_asynch_io : entity is TRUE;
|
6225 |
|
|
end cycloneii_asynch_io;
|
6226 |
|
|
|
6227 |
|
|
architecture behave of cycloneii_asynch_io is
|
6228 |
|
|
attribute VITAL_LEVEL0 of behave : architecture is TRUE;
|
6229 |
|
|
|
6230 |
|
|
signal datain_ipd, oe_ipd, padio_ipd: std_logic;
|
6231 |
|
|
|
6232 |
|
|
signal differentialin_ipd: std_logic;
|
6233 |
|
|
|
6234 |
|
|
begin
|
6235 |
|
|
---------------------
|
6236 |
|
|
-- INPUT PATH DELAYs
|
6237 |
|
|
---------------------
|
6238 |
|
|
WireDelay : block
|
6239 |
|
|
begin
|
6240 |
|
|
VitalWireDelay (datain_ipd, datain, tipd_datain);
|
6241 |
|
|
VitalWireDelay (differentialin_ipd, differentialin, tipd_differentialin);
|
6242 |
|
|
|
6243 |
|
|
VitalWireDelay (oe_ipd, oe, tipd_oe);
|
6244 |
|
|
VitalWireDelay (padio_ipd, padio, tipd_padio);
|
6245 |
|
|
end block;
|
6246 |
|
|
|
6247 |
|
|
VITAL: process(padio_ipd, datain_ipd, oe_ipd, regin, differentialin_ipd)
|
6248 |
|
|
variable combout_VitalGlitchData : VitalGlitchDataType;
|
6249 |
|
|
variable padio_VitalGlitchData : VitalGlitchDataType;
|
6250 |
|
|
variable regout_VitalGlitchData : VitalGlitchDataType;
|
6251 |
|
|
|
6252 |
|
|
variable tmp_combout, tmp_padio : std_logic;
|
6253 |
|
|
variable prev_value : std_logic := 'H';
|
6254 |
|
|
|
6255 |
|
|
variable differentialout_VitalGlitchData : VitalGlitchDataType;
|
6256 |
|
|
variable tmp_combout_differentialin_or_pad : std_logic;
|
6257 |
|
|
variable differentialout_tmp : std_logic;
|
6258 |
|
|
|
6259 |
|
|
|
6260 |
|
|
begin
|
6261 |
|
|
|
6262 |
|
|
if (bus_hold = "true" ) then
|
6263 |
|
|
if ( operation_mode = "input") then
|
6264 |
|
|
if ( padio_ipd = 'Z') then
|
6265 |
|
|
tmp_combout := to_x01z(prev_value);
|
6266 |
|
|
else
|
6267 |
|
|
if ( padio_ipd = '1') then
|
6268 |
|
|
prev_value := 'H';
|
6269 |
|
|
elsif ( padio_ipd = '0') then
|
6270 |
|
|
prev_value := 'L';
|
6271 |
|
|
else
|
6272 |
|
|
prev_value := 'W';
|
6273 |
|
|
end if;
|
6274 |
|
|
tmp_combout := to_x01z(padio_ipd);
|
6275 |
|
|
end if;
|
6276 |
|
|
tmp_padio := 'Z';
|
6277 |
|
|
elsif ( operation_mode = "output" or operation_mode = "bidir") then
|
6278 |
|
|
if ( oe_ipd = '1') then
|
6279 |
|
|
if ( open_drain_output = "true" ) then
|
6280 |
|
|
if (datain_ipd = '0') then
|
6281 |
|
|
tmp_padio := '0';
|
6282 |
|
|
prev_value := 'L';
|
6283 |
|
|
elsif (datain_ipd = 'X') then
|
6284 |
|
|
tmp_padio := 'X';
|
6285 |
|
|
prev_value := 'W';
|
6286 |
|
|
else -- 'Z'
|
6287 |
|
|
-- need to update prev_value
|
6288 |
|
|
if (padio_ipd = '1') then
|
6289 |
|
|
prev_value := 'H';
|
6290 |
|
|
elsif (padio_ipd = '0') then
|
6291 |
|
|
prev_value := 'L';
|
6292 |
|
|
elsif (padio_ipd = 'X') then
|
6293 |
|
|
prev_value := 'W';
|
6294 |
|
|
end if;
|
6295 |
|
|
tmp_padio := prev_value;
|
6296 |
|
|
end if;
|
6297 |
|
|
else
|
6298 |
|
|
tmp_padio := datain_ipd;
|
6299 |
|
|
if ( datain_ipd = '1') then
|
6300 |
|
|
prev_value := 'H';
|
6301 |
|
|
elsif (datain_ipd = '0' ) then
|
6302 |
|
|
prev_value := 'L';
|
6303 |
|
|
elsif ( datain_ipd = 'X') then
|
6304 |
|
|
prev_value := 'W';
|
6305 |
|
|
else
|
6306 |
|
|
prev_value := datain_ipd;
|
6307 |
|
|
end if;
|
6308 |
|
|
end if; -- end open_drain_output
|
6309 |
|
|
|
6310 |
|
|
elsif ( oe_ipd = '0' ) then
|
6311 |
|
|
-- need to update prev_value
|
6312 |
|
|
if (padio_ipd = '1') then
|
6313 |
|
|
prev_value := 'H';
|
6314 |
|
|
elsif (padio_ipd = '0') then
|
6315 |
|
|
prev_value := 'L';
|
6316 |
|
|
elsif (padio_ipd = 'X') then
|
6317 |
|
|
prev_value := 'W';
|
6318 |
|
|
end if;
|
6319 |
|
|
tmp_padio := prev_value;
|
6320 |
|
|
else
|
6321 |
|
|
tmp_padio := 'X';
|
6322 |
|
|
prev_value := 'W';
|
6323 |
|
|
end if; -- end oe_in
|
6324 |
|
|
|
6325 |
|
|
if ( operation_mode = "bidir") then
|
6326 |
|
|
tmp_combout := to_x01z(padio_ipd);
|
6327 |
|
|
else
|
6328 |
|
|
tmp_combout := 'Z';
|
6329 |
|
|
end if;
|
6330 |
|
|
end if;
|
6331 |
|
|
|
6332 |
|
|
if ( now <= 1 ps AND prev_value = 'W' ) then --hack for autotest to pass
|
6333 |
|
|
prev_value := 'L';
|
6334 |
|
|
end if;
|
6335 |
|
|
|
6336 |
|
|
else -- bus_hold is false
|
6337 |
|
|
if ( operation_mode = "input") then
|
6338 |
|
|
tmp_combout := padio_ipd;
|
6339 |
|
|
tmp_padio := 'Z';
|
6340 |
|
|
elsif (operation_mode = "output" or operation_mode = "bidir" ) then
|
6341 |
|
|
if ( operation_mode = "bidir") then
|
6342 |
|
|
tmp_combout := padio_ipd;
|
6343 |
|
|
else
|
6344 |
|
|
tmp_combout := 'Z';
|
6345 |
|
|
end if;
|
6346 |
|
|
|
6347 |
|
|
if ( oe_ipd = '1') then
|
6348 |
|
|
if ( open_drain_output = "true" ) then
|
6349 |
|
|
if (datain_ipd = '0') then
|
6350 |
|
|
tmp_padio := '0';
|
6351 |
|
|
elsif (datain_ipd = 'X') then
|
6352 |
|
|
tmp_padio := 'X';
|
6353 |
|
|
else
|
6354 |
|
|
tmp_padio := 'Z';
|
6355 |
|
|
end if;
|
6356 |
|
|
else
|
6357 |
|
|
tmp_padio := datain_ipd;
|
6358 |
|
|
end if;
|
6359 |
|
|
elsif ( oe_ipd = '0' ) then
|
6360 |
|
|
tmp_padio := 'Z';
|
6361 |
|
|
else
|
6362 |
|
|
tmp_padio := 'X';
|
6363 |
|
|
end if;
|
6364 |
|
|
end if;
|
6365 |
|
|
end if; -- end bus_hold
|
6366 |
|
|
|
6367 |
|
|
if (use_differential_input = "true") then
|
6368 |
|
|
tmp_combout_differentialin_or_pad := differentialin_ipd;
|
6369 |
|
|
else
|
6370 |
|
|
tmp_combout_differentialin_or_pad := tmp_combout;
|
6371 |
|
|
end if;
|
6372 |
|
|
|
6373 |
|
|
if (operation_mode = "input" or operation_mode = "bidir") then
|
6374 |
|
|
differentialout_tmp := padio_ipd;
|
6375 |
|
|
else
|
6376 |
|
|
differentialout_tmp := 'X';
|
6377 |
|
|
end if;
|
6378 |
|
|
|
6379 |
|
|
----------------------
|
6380 |
|
|
-- Path Delay Section
|
6381 |
|
|
----------------------
|
6382 |
|
|
VitalPathDelay01 (
|
6383 |
|
|
OutSignal => combout,
|
6384 |
|
|
OutSignalName => "combout",
|
6385 |
|
|
OutTemp => tmp_combout_differentialin_or_pad,
|
6386 |
|
|
Paths => (1 => (padio_ipd'last_event, tpd_padio_combout, use_differential_input = "false"),
|
6387 |
|
|
2 => (differentialin_ipd'last_event, tpd_differentialin_combout, use_differential_input = "true")),
|
6388 |
|
|
GlitchData => combout_VitalGlitchData,
|
6389 |
|
|
Mode => DefGlitchMode,
|
6390 |
|
|
XOn => XOn,
|
6391 |
|
|
MsgOn => MsgOn );
|
6392 |
|
|
|
6393 |
|
|
VitalPathDelay01 (
|
6394 |
|
|
OutSignal => padio,
|
6395 |
|
|
OutSignalName => "padio",
|
6396 |
|
|
OutTemp => tmp_padio,
|
6397 |
|
|
Paths => (1 => (datain_ipd'last_event, tpd_datain_padio, TRUE),
|
6398 |
|
|
2 => (oe_ipd'last_event, tpd_oe_padio_posedge, oe_ipd = '1'),
|
6399 |
|
|
3 => (oe_ipd'last_event, tpd_oe_padio_negedge, oe_ipd = '0')),
|
6400 |
|
|
GlitchData => padio_VitalGlitchData,
|
6401 |
|
|
Mode => DefGlitchMode,
|
6402 |
|
|
XOn => XOn,
|
6403 |
|
|
MsgOn => MsgOn );
|
6404 |
|
|
|
6405 |
|
|
VitalPathDelay01 (
|
6406 |
|
|
OutSignal => regout,
|
6407 |
|
|
OutSignalName => "regout",
|
6408 |
|
|
OutTemp => regin,
|
6409 |
|
|
Paths => (1 => (regin'last_event, tpd_regin_regout, TRUE)),
|
6410 |
|
|
GlitchData => regout_VitalGlitchData,
|
6411 |
|
|
Mode => DefGlitchMode,
|
6412 |
|
|
XOn => XOn,
|
6413 |
|
|
MsgOn => MsgOn );
|
6414 |
|
|
|
6415 |
|
|
VitalPathDelay01 (
|
6416 |
|
|
OutSignal => differentialout,
|
6417 |
|
|
OutSignalName => "differentialout",
|
6418 |
|
|
OutTemp => differentialout_tmp,
|
6419 |
|
|
Paths => (1 => (padio_ipd'last_event, tpd_padio_differentialout, TRUE)),
|
6420 |
|
|
GlitchData => differentialout_VitalGlitchData,
|
6421 |
|
|
Mode => DefGlitchMode,
|
6422 |
|
|
XOn => XOn,
|
6423 |
|
|
MsgOn => MsgOn );
|
6424 |
|
|
|
6425 |
|
|
end process;
|
6426 |
|
|
|
6427 |
|
|
end behave;
|
6428 |
|
|
|
6429 |
|
|
--
|
6430 |
|
|
-- CYCLONEII_IO
|
6431 |
|
|
--
|
6432 |
|
|
LIBRARY IEEE;
|
6433 |
|
|
use IEEE.std_logic_1164.all;
|
6434 |
|
|
use IEEE.VITAL_Timing.all;
|
6435 |
|
|
use IEEE.VITAL_Primitives.all;
|
6436 |
|
|
use work.cycloneii_atom_pack.all;
|
6437 |
|
|
use work.cycloneii_asynch_io;
|
6438 |
|
|
use work.cycloneii_dffe;
|
6439 |
|
|
use work.cycloneii_mux21;
|
6440 |
|
|
|
6441 |
|
|
entity cycloneii_io is
|
6442 |
|
|
generic (
|
6443 |
|
|
operation_mode : string := "input";
|
6444 |
|
|
open_drain_output : string := "false";
|
6445 |
|
|
bus_hold : string := "false";
|
6446 |
|
|
output_register_mode : string := "none";
|
6447 |
|
|
output_async_reset : string := "none";
|
6448 |
|
|
output_sync_reset : string := "none";
|
6449 |
|
|
output_power_up : string := "low";
|
6450 |
|
|
tie_off_output_clock_enable : string := "false";
|
6451 |
|
|
oe_register_mode : string := "none";
|
6452 |
|
|
oe_async_reset : string := "none";
|
6453 |
|
|
oe_sync_reset : string := "none";
|
6454 |
|
|
oe_power_up : string := "low";
|
6455 |
|
|
tie_off_oe_clock_enable : string := "false";
|
6456 |
|
|
input_register_mode : string := "none";
|
6457 |
|
|
input_async_reset : string := "none";
|
6458 |
|
|
input_sync_reset : string := "none";
|
6459 |
|
|
use_differential_input : string := "false";
|
6460 |
|
|
lpm_type : string := "cycloneii_io";
|
6461 |
|
|
input_power_up : string := "low");
|
6462 |
|
|
port (
|
6463 |
|
|
datain : in std_logic := '0';
|
6464 |
|
|
oe : in std_logic := '1';
|
6465 |
|
|
outclk : in std_logic := '0';
|
6466 |
|
|
outclkena : in std_logic := '1';
|
6467 |
|
|
inclk : in std_logic := '0';
|
6468 |
|
|
inclkena : in std_logic := '1';
|
6469 |
|
|
areset : in std_logic := '0';
|
6470 |
|
|
sreset : in std_logic := '0';
|
6471 |
|
|
devclrn : in std_logic := '1';
|
6472 |
|
|
devpor : in std_logic := '1';
|
6473 |
|
|
devoe : in std_logic := '1';
|
6474 |
|
|
linkin : in std_logic := '0';
|
6475 |
|
|
differentialin : in std_logic := '0';
|
6476 |
|
|
differentialout : out std_logic;
|
6477 |
|
|
linkout : out std_logic;
|
6478 |
|
|
combout : out std_logic;
|
6479 |
|
|
regout : out std_logic;
|
6480 |
|
|
padio : inout std_logic
|
6481 |
|
|
);
|
6482 |
|
|
end cycloneii_io;
|
6483 |
|
|
|
6484 |
|
|
architecture structure of cycloneii_io is
|
6485 |
|
|
component cycloneii_asynch_io
|
6486 |
|
|
generic(
|
6487 |
|
|
operation_mode : string := "input";
|
6488 |
|
|
open_drain_output : string := "false";
|
6489 |
|
|
use_differential_input : STRING := "false";
|
6490 |
|
|
bus_hold : string := "false");
|
6491 |
|
|
port(
|
6492 |
|
|
datain : in STD_LOGIC := '0';
|
6493 |
|
|
oe : in STD_LOGIC := '0';
|
6494 |
|
|
regin : in std_logic;
|
6495 |
|
|
differentialin : in STD_LOGIC;
|
6496 |
|
|
differentialout : out STD_LOGIC;
|
6497 |
|
|
padio : inout STD_LOGIC;
|
6498 |
|
|
combout: out STD_LOGIC;
|
6499 |
|
|
regout : out STD_LOGIC);
|
6500 |
|
|
end component;
|
6501 |
|
|
|
6502 |
|
|
component cycloneii_dffe
|
6503 |
|
|
generic(
|
6504 |
|
|
TimingChecksOn: Boolean := true;
|
6505 |
|
|
InstancePath: STRING := "*";
|
6506 |
|
|
XOn: Boolean := DefGlitchXOn;
|
6507 |
|
|
MsgOn: Boolean := DefGlitchMsgOn;
|
6508 |
|
|
MsgOnChecks: Boolean := DefMsgOnChecks;
|
6509 |
|
|
XOnChecks: Boolean := DefXOnChecks;
|
6510 |
|
|
tpd_PRN_Q_negedge : VitalDelayType01 := DefPropDelay01;
|
6511 |
|
|
tpd_CLRN_Q_negedge : VitalDelayType01 := DefPropDelay01;
|
6512 |
|
|
tpd_CLK_Q_posedge : VitalDelayType01 := DefPropDelay01;
|
6513 |
|
|
tpd_ENA_Q_posedge : VitalDelayType01 := DefPropDelay01;
|
6514 |
|
|
tsetup_D_CLK_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
6515 |
|
|
tsetup_D_CLK_noedge_negedge : VitalDelayType := DefSetupHoldCnst;
|
6516 |
|
|
tsetup_ENA_CLK_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
6517 |
|
|
thold_D_CLK_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
6518 |
|
|
thold_D_CLK_noedge_negedge : VitalDelayType := DefSetupHoldCnst;
|
6519 |
|
|
thold_ENA_CLK_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
6520 |
|
|
tipd_D : VitalDelayType01 := DefPropDelay01;
|
6521 |
|
|
tipd_CLRN : VitalDelayType01 := DefPropDelay01;
|
6522 |
|
|
tipd_PRN : VitalDelayType01 := DefPropDelay01;
|
6523 |
|
|
tipd_CLK : VitalDelayType01 := DefPropDelay01;
|
6524 |
|
|
tipd_ENA : VitalDelayType01 := DefPropDelay01);
|
6525 |
|
|
|
6526 |
|
|
port(
|
6527 |
|
|
Q : out STD_LOGIC := '0';
|
6528 |
|
|
D : in STD_LOGIC := '1';
|
6529 |
|
|
CLRN : in STD_LOGIC := '1';
|
6530 |
|
|
PRN : in STD_LOGIC := '1';
|
6531 |
|
|
CLK : in STD_LOGIC := '0';
|
6532 |
|
|
ENA : in STD_LOGIC := '1');
|
6533 |
|
|
end component;
|
6534 |
|
|
|
6535 |
|
|
component cycloneii_mux21
|
6536 |
|
|
port (
|
6537 |
|
|
A : in std_logic := '0';
|
6538 |
|
|
B : in std_logic := '0';
|
6539 |
|
|
S : in std_logic := '0';
|
6540 |
|
|
MO : out std_logic);
|
6541 |
|
|
end component;
|
6542 |
|
|
|
6543 |
|
|
signal is_bidir_or_output : std_logic;
|
6544 |
|
|
signal out_reg_clk_ena, oe_reg_clk_ena : std_logic;
|
6545 |
|
|
|
6546 |
|
|
signal tmp_oe_reg_out, tmp_input_reg_out, tmp_output_reg_out : std_logic;
|
6547 |
|
|
|
6548 |
|
|
signal inreg_sreset_is_used, outreg_sreset_is_used, oereg_sreset_is_used : std_logic;
|
6549 |
|
|
|
6550 |
|
|
signal inreg_sreset, outreg_sreset, oereg_sreset : std_logic;
|
6551 |
|
|
|
6552 |
|
|
signal in_reg_aclr, in_reg_apreset : std_logic;
|
6553 |
|
|
|
6554 |
|
|
signal oe_reg_aclr, oe_reg_apreset, oe_reg_sel : std_logic;
|
6555 |
|
|
|
6556 |
|
|
signal out_reg_aclr, out_reg_apreset, out_reg_sel : std_logic;
|
6557 |
|
|
|
6558 |
|
|
signal input_reg_pu_low, output_reg_pu_low, oe_reg_pu_low : std_logic;
|
6559 |
|
|
|
6560 |
|
|
signal inreg_D, outreg_D, oereg_D : std_logic;
|
6561 |
|
|
|
6562 |
|
|
signal tmp_datain, tmp_oe : std_logic;
|
6563 |
|
|
|
6564 |
|
|
signal iareset, isreset : std_logic;
|
6565 |
|
|
|
6566 |
|
|
signal inreg_mux_sel, outreg_mux_sel, oereg_mux_sel : std_logic;
|
6567 |
|
|
|
6568 |
|
|
signal input_dffe_aclr, input_dffe_apreset, output_dffe_aclr, output_dffe_apreset : std_logic;
|
6569 |
|
|
signal oe_dffe_aclr, oe_dffe_apreset : std_logic;
|
6570 |
|
|
|
6571 |
|
|
signal pad_or_differentialin : std_logic;
|
6572 |
|
|
|
6573 |
|
|
begin
|
6574 |
|
|
|
6575 |
|
|
is_bidir_or_output <= '1' WHEN (operation_mode = "bidir" OR operation_mode = "output") ELSE '0';
|
6576 |
|
|
|
6577 |
|
|
input_reg_pu_low <= '0' WHEN input_power_up = "low" ELSE '1';
|
6578 |
|
|
output_reg_pu_low <= '0' WHEN output_power_up = "low" ELSE '1';
|
6579 |
|
|
oe_reg_pu_low <= '0' WHEN oe_power_up = "low" ELSE '1';
|
6580 |
|
|
|
6581 |
|
|
out_reg_sel <= '1' WHEN output_register_mode = "register" ELSE '0';
|
6582 |
|
|
oe_reg_sel <= '1' WHEN oe_register_mode = "register" ELSE '0';
|
6583 |
|
|
|
6584 |
|
|
iareset <= (NOT areset) WHEN ( areset = '1' OR areset = '0') ELSE '1';
|
6585 |
|
|
isreset <= sreset WHEN ( areset = '1' OR areset = '0') ELSE '0';
|
6586 |
|
|
|
6587 |
|
|
|
6588 |
|
|
-- output registere signals
|
6589 |
|
|
out_reg_aclr <= iareset WHEN output_async_reset = "clear" ELSE '1';
|
6590 |
|
|
out_reg_apreset <= iareset WHEN output_async_reset = "preset" ELSE '1';
|
6591 |
|
|
outreg_sreset_is_used <= '0' WHEN output_sync_reset = "none" ELSE '1';
|
6592 |
|
|
outreg_sreset <= '0' WHEN output_sync_reset = "clear" ELSE '1';
|
6593 |
|
|
|
6594 |
|
|
-- oe register signals
|
6595 |
|
|
oe_reg_aclr <= iareset WHEN oe_async_reset = "clear" ELSE '1';
|
6596 |
|
|
oe_reg_apreset <= iareset WHEN oe_async_reset = "preset" ELSE '1';
|
6597 |
|
|
oereg_sreset_is_used <= '0' WHEN oe_sync_reset = "none" ELSE '1';
|
6598 |
|
|
oereg_sreset <= '0' WHEN oe_sync_reset = "clear" ELSE '1';
|
6599 |
|
|
|
6600 |
|
|
-- input register signals
|
6601 |
|
|
in_reg_aclr <= iareset WHEN input_async_reset = "clear" ELSE '1';
|
6602 |
|
|
in_reg_apreset <= iareset WHEN input_async_reset = "preset" ELSE '1';
|
6603 |
|
|
inreg_sreset_is_used <= '0' WHEN input_sync_reset = "none" ELSE '1';
|
6604 |
|
|
inreg_sreset <= '0' WHEN input_sync_reset = "clear" ELSE '1';
|
6605 |
|
|
|
6606 |
|
|
-- oe and output register clock enable signals
|
6607 |
|
|
out_reg_clk_ena <= '1' WHEN tie_off_output_clock_enable = "true" ELSE outclkena;
|
6608 |
|
|
oe_reg_clk_ena <= '1' WHEN tie_off_oe_clock_enable = "true" ELSE outclkena;
|
6609 |
|
|
|
6610 |
|
|
-- input register
|
6611 |
|
|
inreg_mux_sel <= isreset AND inreg_sreset_is_used;
|
6612 |
|
|
input_dffe_aclr <= in_reg_aclr AND devclrn AND (input_reg_pu_low OR devpor);
|
6613 |
|
|
input_dffe_apreset <= in_reg_apreset AND ( (NOT input_reg_pu_low) OR devpor);
|
6614 |
|
|
|
6615 |
|
|
-- differentialin
|
6616 |
|
|
pad_or_differentialin <= differentialin WHEN use_differential_input = "true" ELSE padio;
|
6617 |
|
|
|
6618 |
|
|
inreg_D_mux : cycloneii_mux21
|
6619 |
|
|
port map ( A => pad_or_differentialin,
|
6620 |
|
|
B => inreg_sreset,
|
6621 |
|
|
S => inreg_mux_sel,
|
6622 |
|
|
MO=> inreg_D);
|
6623 |
|
|
|
6624 |
|
|
input_reg : cycloneii_dffe
|
6625 |
|
|
port map (D => inreg_D,
|
6626 |
|
|
CLRN => input_dffe_aclr,
|
6627 |
|
|
PRN => input_dffe_apreset,
|
6628 |
|
|
CLK => inclk,
|
6629 |
|
|
ENA => inclkena,
|
6630 |
|
|
Q => tmp_input_reg_out);
|
6631 |
|
|
|
6632 |
|
|
-- output register
|
6633 |
|
|
outreg_mux_sel <= isreset AND outreg_sreset_is_used;
|
6634 |
|
|
output_dffe_aclr <= out_reg_aclr AND devclrn AND (output_reg_pu_low OR devpor);
|
6635 |
|
|
output_dffe_apreset <= out_reg_apreset AND ( (NOT output_reg_pu_low) OR devpor);
|
6636 |
|
|
outreg_D_mux : cycloneii_mux21
|
6637 |
|
|
port map ( A => datain,
|
6638 |
|
|
B => outreg_sreset,
|
6639 |
|
|
S => outreg_mux_sel,
|
6640 |
|
|
MO=> outreg_D);
|
6641 |
|
|
|
6642 |
|
|
output_reg : cycloneii_dffe
|
6643 |
|
|
port map (D => outreg_D,
|
6644 |
|
|
CLRN => output_dffe_aclr,
|
6645 |
|
|
PRN => output_dffe_apreset,
|
6646 |
|
|
CLK => outclk,
|
6647 |
|
|
ENA => out_reg_clk_ena,
|
6648 |
|
|
Q => tmp_output_reg_out);
|
6649 |
|
|
|
6650 |
|
|
-- oe register
|
6651 |
|
|
oereg_mux_sel <= isreset AND oereg_sreset_is_used;
|
6652 |
|
|
oe_dffe_aclr <= oe_reg_aclr AND devclrn AND (oe_reg_pu_low OR devpor);
|
6653 |
|
|
oe_dffe_apreset <= oe_reg_apreset AND ( (NOT oe_reg_pu_low) OR devpor);
|
6654 |
|
|
|
6655 |
|
|
oereg_D_mux : cycloneii_mux21
|
6656 |
|
|
port map ( A => oe,
|
6657 |
|
|
B => oereg_sreset,
|
6658 |
|
|
S => oereg_mux_sel,
|
6659 |
|
|
MO=> oereg_D);
|
6660 |
|
|
|
6661 |
|
|
oe_reg : cycloneii_dffe
|
6662 |
|
|
port map (D => oereg_D,
|
6663 |
|
|
CLRN => oe_dffe_aclr,
|
6664 |
|
|
PRN => oe_dffe_apreset,
|
6665 |
|
|
CLK => outclk,
|
6666 |
|
|
ENA => oe_reg_clk_ena,
|
6667 |
|
|
Q => tmp_oe_reg_out);
|
6668 |
|
|
|
6669 |
|
|
|
6670 |
|
|
-- asynchrous block
|
6671 |
|
|
tmp_oe <= tmp_oe_reg_out WHEN oe_reg_sel = '1' ELSE oe;
|
6672 |
|
|
tmp_datain <= tmp_output_reg_out WHEN (is_bidir_or_output = '1' AND out_reg_sel = '1') ELSE datain;
|
6673 |
|
|
|
6674 |
|
|
asynch_inst : cycloneii_asynch_io
|
6675 |
|
|
generic map (OPERATION_MODE => operation_mode,
|
6676 |
|
|
OPEN_DRAIN_OUTPUT => open_drain_output,
|
6677 |
|
|
USE_DIFFERENTIAL_INPUT => use_differential_input,
|
6678 |
|
|
BUS_HOLD => bus_hold)
|
6679 |
|
|
port map (datain => tmp_datain,
|
6680 |
|
|
oe => tmp_oe,
|
6681 |
|
|
regin => tmp_input_reg_out,
|
6682 |
|
|
differentialin => differentialin,
|
6683 |
|
|
differentialout => differentialout,
|
6684 |
|
|
padio => padio,
|
6685 |
|
|
combout => combout,
|
6686 |
|
|
regout => regout);
|
6687 |
|
|
|
6688 |
|
|
end structure;
|
6689 |
|
|
|
6690 |
|
|
|
6691 |
|
|
--/////////////////////////////////////////////////////////////////////////////
|
6692 |
|
|
--
|
6693 |
|
|
-- VHDL Simulation Model for Cyclone II CLK DELAY CTRL Atom
|
6694 |
|
|
--
|
6695 |
|
|
--/////////////////////////////////////////////////////////////////////////////
|
6696 |
|
|
|
6697 |
|
|
--
|
6698 |
|
|
--
|
6699 |
|
|
-- CYCLONEII_CLKCTRL Model
|
6700 |
|
|
--
|
6701 |
|
|
--
|
6702 |
|
|
|
6703 |
|
|
LIBRARY IEEE;
|
6704 |
|
|
use IEEE.std_logic_1164.all;
|
6705 |
|
|
use IEEE.std_logic_unsigned.all;
|
6706 |
|
|
use IEEE.VITAL_Timing.all;
|
6707 |
|
|
use IEEE.VITAL_Primitives.all;
|
6708 |
|
|
use work.cycloneii_atom_pack.all;
|
6709 |
|
|
|
6710 |
|
|
entity cycloneii_clk_delay_ctrl is
|
6711 |
|
|
generic (
|
6712 |
|
|
behavioral_sim_delay : integer := 0;
|
6713 |
|
|
delay_chain : STRING := "54";
|
6714 |
|
|
delay_chain_mode : STRING := "static";
|
6715 |
|
|
uses_calibration : STRING := "false";
|
6716 |
|
|
use_new_style_dq_detection : STRING := "false";
|
6717 |
|
|
tan_delay_under_delay_ctrl_signal : STRING := "unused";
|
6718 |
|
|
delay_ctrl_sim_delay_15_0 : STD_LOGIC_VECTOR(511 downto 0) := (OTHERS => '0');
|
6719 |
|
|
delay_ctrl_sim_delay_31_16 : STD_LOGIC_VECTOR(511 downto 0) := (OTHERS => '0');
|
6720 |
|
|
delay_ctrl_sim_delay_47_32 : STD_LOGIC_VECTOR(511 downto 0) := (OTHERS => '0');
|
6721 |
|
|
delay_ctrl_sim_delay_63_48 : STD_LOGIC_VECTOR(511 downto 0) := (OTHERS => '0');
|
6722 |
|
|
lpm_type : STRING := "cycloneii_clk_delay_ctrl";
|
6723 |
|
|
TimingChecksOn : Boolean := True;
|
6724 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
6725 |
|
|
XOn : Boolean := DefGlitchXOn;
|
6726 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
6727 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
6728 |
|
|
InstancePath : STRING := "*";
|
6729 |
|
|
tpd_clk_clkout : VitalDelayType01 := DefPropDelay01;
|
6730 |
|
|
tpd_disablecalibration_clkout : VitalDelayType01 := DefPropDelay01;
|
6731 |
|
|
tpd_pllcalibrateclkdelayedin_clkout : VitalDelayType01 := DefPropDelay01;
|
6732 |
|
|
tipd_clk : VitalDelayType01 := DefPropDelay01;
|
6733 |
|
|
tipd_delayctrlin : VitalDelayArrayType01(5 downto 0) := (OTHERS => DefPropDelay01);
|
6734 |
|
|
tipd_disablecalibration : VitalDelayType01 := DefPropDelay01;
|
6735 |
|
|
tipd_pllcalibrateclkdelayedin : VitalDelayType01 := DefPropDelay01
|
6736 |
|
|
);
|
6737 |
|
|
port (
|
6738 |
|
|
clk : in std_logic := '0';
|
6739 |
|
|
delayctrlin : in std_logic_vector(5 downto 0) := "000000";
|
6740 |
|
|
disablecalibration : in std_logic := '1';
|
6741 |
|
|
pllcalibrateclkdelayedin: in std_logic := '0';
|
6742 |
|
|
devclrn : in std_logic := '1';
|
6743 |
|
|
devpor : in std_logic := '1';
|
6744 |
|
|
clkout : out std_logic
|
6745 |
|
|
);
|
6746 |
|
|
attribute VITAL_LEVEL0 of cycloneii_clk_delay_ctrl : entity is TRUE;
|
6747 |
|
|
end cycloneii_clk_delay_ctrl;
|
6748 |
|
|
|
6749 |
|
|
architecture vital_clk_delay_ctrl of cycloneii_clk_delay_ctrl is
|
6750 |
|
|
attribute VITAL_LEVEL0 of vital_clk_delay_ctrl : architecture is TRUE;
|
6751 |
|
|
|
6752 |
|
|
type cycloneii_clkdlyctrl_int_vec is array (natural range <>) of integer;
|
6753 |
|
|
|
6754 |
|
|
signal clk_ipd : std_logic;
|
6755 |
|
|
signal delayctrlin_ipd : std_logic_vector(5 downto 0);
|
6756 |
|
|
signal disablecalibration_ipd : std_logic;
|
6757 |
|
|
signal pllcalibrateclkdelayedin_ipd : std_logic := '0';
|
6758 |
|
|
|
6759 |
|
|
signal dqs_dynamic_dly_si : integer := 0;
|
6760 |
|
|
begin
|
6761 |
|
|
|
6762 |
|
|
---------------------
|
6763 |
|
|
-- INPUT PATH DELAYs
|
6764 |
|
|
---------------------
|
6765 |
|
|
WireDelay : block
|
6766 |
|
|
begin
|
6767 |
|
|
VitalWireDelay (clk_ipd, clk, tipd_clk);
|
6768 |
|
|
VitalWireDelay (delayctrlin_ipd(0), delayctrlin(0), tipd_delayctrlin(0));
|
6769 |
|
|
VitalWireDelay (delayctrlin_ipd(1), delayctrlin(1), tipd_delayctrlin(1));
|
6770 |
|
|
VitalWireDelay (delayctrlin_ipd(2), delayctrlin(2), tipd_delayctrlin(2));
|
6771 |
|
|
VitalWireDelay (delayctrlin_ipd(3), delayctrlin(3), tipd_delayctrlin(3));
|
6772 |
|
|
VitalWireDelay (delayctrlin_ipd(4), delayctrlin(4), tipd_delayctrlin(4));
|
6773 |
|
|
VitalWireDelay (delayctrlin_ipd(5), delayctrlin(5), tipd_delayctrlin(5));
|
6774 |
|
|
VitalWireDelay (disablecalibration_ipd, disablecalibration, tipd_disablecalibration);
|
6775 |
|
|
VitalWireDelay (pllcalibrateclkdelayedin_ipd, pllcalibrateclkdelayedin, tipd_pllcalibrateclkdelayedin);
|
6776 |
|
|
end block;
|
6777 |
|
|
|
6778 |
|
|
-- generate dynamic delay table and dynamic delay
|
6779 |
|
|
process(delayctrlin_ipd)
|
6780 |
|
|
variable init : boolean := true;
|
6781 |
|
|
variable i : natural := 0;
|
6782 |
|
|
variable w_index_l : integer := 0;
|
6783 |
|
|
variable sim_dly_all : std_logic_vector(2047 downto 0) := (OTHERS => '0');
|
6784 |
|
|
variable dly_table : cycloneii_clkdlyctrl_int_vec(63 downto 0) := (OTHERS => 0);
|
6785 |
|
|
variable dly_index : integer := 0;
|
6786 |
|
|
begin
|
6787 |
|
|
if (init) then
|
6788 |
|
|
sim_dly_all := delay_ctrl_sim_delay_63_48 & delay_ctrl_sim_delay_47_32 & delay_ctrl_sim_delay_31_16 & delay_ctrl_sim_delay_15_0;
|
6789 |
|
|
while ( i < 64 ) loop
|
6790 |
|
|
w_index_l := 32*i;
|
6791 |
|
|
dly_table(i) := conv_integer(sim_dly_all((w_index_l + 31) downto w_index_l));
|
6792 |
|
|
i := i + 1;
|
6793 |
|
|
end loop;
|
6794 |
|
|
|
6795 |
|
|
init := false;
|
6796 |
|
|
end if;
|
6797 |
|
|
|
6798 |
|
|
dly_index := conv_integer(delayctrlin_ipd);
|
6799 |
|
|
if (dly_index >= 0 and dly_index < 64) then
|
6800 |
|
|
dqs_dynamic_dly_si <= dly_table(dly_index);
|
6801 |
|
|
end if;
|
6802 |
|
|
|
6803 |
|
|
end process;
|
6804 |
|
|
|
6805 |
|
|
VITAL: process(clk_ipd, pllcalibrateclkdelayedin_ipd, disablecalibration_ipd)
|
6806 |
|
|
variable clkout_VitalGlitchData : VitalGlitchDataType;
|
6807 |
|
|
variable clkout_delay : VitalDelayType01 := (0 ps, 0 ps);
|
6808 |
|
|
variable use_calib_clk : std_logic := '0';
|
6809 |
|
|
variable clkout_tmp : std_logic := '0';
|
6810 |
|
|
begin
|
6811 |
|
|
if ((uses_calibration = "true") and (disablecalibration_ipd = '0')) then
|
6812 |
|
|
use_calib_clk := '1';
|
6813 |
|
|
clkout_tmp := pllcalibrateclkdelayedin_ipd;
|
6814 |
|
|
clkout_delay := tpd_pllcalibrateclkdelayedin_clkout;
|
6815 |
|
|
else
|
6816 |
|
|
use_calib_clk := '0';
|
6817 |
|
|
clkout_tmp := clk_ipd;
|
6818 |
|
|
if (delay_chain_mode = "static") then
|
6819 |
|
|
clkout_delay := tpd_clk_clkout; -- contains behavioral_sim_delay in timing sim
|
6820 |
|
|
for i in clkout_delay'range loop
|
6821 |
|
|
clkout_delay(i) := clkout_delay(i) + (behavioral_sim_delay * 1 ps);
|
6822 |
|
|
end loop;
|
6823 |
|
|
elsif (delay_chain_mode = "dynamic") then
|
6824 |
|
|
clkout_delay := (0 ps, 0 ps);
|
6825 |
|
|
for i in clkout_delay'range loop
|
6826 |
|
|
clkout_delay(i) := clkout_delay(i) + (dqs_dynamic_dly_si * 1 ps);
|
6827 |
|
|
end loop;
|
6828 |
|
|
end if;
|
6829 |
|
|
end if;
|
6830 |
|
|
|
6831 |
|
|
----------------------
|
6832 |
|
|
-- Path Delay Section
|
6833 |
|
|
----------------------
|
6834 |
|
|
VitalPathDelay01 (
|
6835 |
|
|
OutSignal => clkout,
|
6836 |
|
|
OutSignalName => "clkout",
|
6837 |
|
|
OutTemp => clkout_tmp,
|
6838 |
|
|
Paths => (0 => (pllcalibrateclkdelayedin_ipd'last_event, clkout_delay, use_calib_clk = '1'),
|
6839 |
|
|
1 => (clk_ipd'last_event, clkout_delay, use_calib_clk = '0')),
|
6840 |
|
|
GlitchData => clkout_VitalGlitchData,
|
6841 |
|
|
Mode => DefGlitchMode,
|
6842 |
|
|
XOn => XOn,
|
6843 |
|
|
MsgOn => MsgOn );
|
6844 |
|
|
|
6845 |
|
|
end process;
|
6846 |
|
|
|
6847 |
|
|
end vital_clk_delay_ctrl;
|
6848 |
|
|
|
6849 |
|
|
|
6850 |
|
|
--/////////////////////////////////////////////////////////////////////////////
|
6851 |
|
|
--
|
6852 |
|
|
-- VHDL Simulation Model for Cyclone II CLK DELAY Calibration CTRL Atom
|
6853 |
|
|
--
|
6854 |
|
|
--/////////////////////////////////////////////////////////////////////////////
|
6855 |
|
|
|
6856 |
|
|
--
|
6857 |
|
|
--
|
6858 |
|
|
-- CYCLONEII_CLK_DELAY_CAL_CTRL ATOM Model
|
6859 |
|
|
--
|
6860 |
|
|
--
|
6861 |
|
|
|
6862 |
|
|
LIBRARY IEEE;
|
6863 |
|
|
use IEEE.std_logic_1164.all;
|
6864 |
|
|
use IEEE.std_logic_unsigned.all;
|
6865 |
|
|
use IEEE.VITAL_Timing.all;
|
6866 |
|
|
use IEEE.VITAL_Primitives.all;
|
6867 |
|
|
use work.cycloneii_atom_pack.all;
|
6868 |
|
|
|
6869 |
|
|
entity cycloneii_clk_delay_cal_ctrl is
|
6870 |
|
|
generic (
|
6871 |
|
|
delay_ctrl_sim_delay_15_0 : STD_LOGIC_VECTOR(511 downto 0) := (OTHERS => '0');
|
6872 |
|
|
delay_ctrl_sim_delay_31_16 : STD_LOGIC_VECTOR(511 downto 0) := (OTHERS => '0');
|
6873 |
|
|
delay_ctrl_sim_delay_47_32 : STD_LOGIC_VECTOR(511 downto 0) := (OTHERS => '0');
|
6874 |
|
|
delay_ctrl_sim_delay_63_48 : STD_LOGIC_VECTOR(511 downto 0) := (OTHERS => '0');
|
6875 |
|
|
lpm_type : STRING := "cycloneii_clk_delay_cal_ctrl";
|
6876 |
|
|
TimingChecksOn : Boolean := True;
|
6877 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
6878 |
|
|
XOn : Boolean := DefGlitchXOn;
|
6879 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
6880 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
6881 |
|
|
InstancePath : STRING := "*";
|
6882 |
|
|
tpd_plldataclk_calibratedata : VitalDelayType01 := DefPropDelay01;
|
6883 |
|
|
tpd_disablecalibration_calibratedata : VitalDelayType01 := DefPropDelay01;
|
6884 |
|
|
tpd_pllcalibrateclk_pllcalibrateclkdelayedout : VitalDelayType01 := DefPropDelay01;
|
6885 |
|
|
tpd_disablecalibration_pllcalibrateclkdelayedout : VitalDelayType01 := DefPropDelay01;
|
6886 |
|
|
tipd_plldataclk : VitalDelayType01 := DefPropDelay01;
|
6887 |
|
|
tipd_pllcalibrateclk : VitalDelayType01 := DefPropDelay01;
|
6888 |
|
|
tipd_delayctrlin : VitalDelayArrayType01(5 downto 0) := (OTHERS => DefPropDelay01);
|
6889 |
|
|
tipd_disablecalibration : VitalDelayType01 := DefPropDelay01
|
6890 |
|
|
);
|
6891 |
|
|
port (
|
6892 |
|
|
plldataclk : in std_logic := '0';
|
6893 |
|
|
pllcalibrateclk : in std_logic := '0';
|
6894 |
|
|
disablecalibration : in std_logic := '1';
|
6895 |
|
|
delayctrlin : in std_logic_vector(5 downto 0) := "000000";
|
6896 |
|
|
devclrn : in std_logic := '1';
|
6897 |
|
|
devpor : in std_logic := '1';
|
6898 |
|
|
calibratedata : out std_logic;
|
6899 |
|
|
pllcalibrateclkdelayedout : out std_logic
|
6900 |
|
|
);
|
6901 |
|
|
attribute VITAL_LEVEL0 of cycloneii_clk_delay_cal_ctrl : entity is TRUE;
|
6902 |
|
|
end cycloneii_clk_delay_cal_ctrl;
|
6903 |
|
|
|
6904 |
|
|
architecture vital_clk_delay_cal_ctrl of cycloneii_clk_delay_cal_ctrl is
|
6905 |
|
|
attribute VITAL_LEVEL0 of vital_clk_delay_cal_ctrl : architecture is TRUE;
|
6906 |
|
|
|
6907 |
|
|
type cycloneii_clkdlycal_int_vec is array (natural range <>) of integer;
|
6908 |
|
|
|
6909 |
|
|
signal plldataclk_ipd : std_logic := '0';
|
6910 |
|
|
signal pllcalibrateclk_ipd : std_logic := '0';
|
6911 |
|
|
signal delayctrlin_ipd : std_logic_vector(5 downto 0) := "000000";
|
6912 |
|
|
signal disablecalibration_ipd : std_logic := '0';
|
6913 |
|
|
|
6914 |
|
|
|
6915 |
|
|
signal cal_clk_prev : std_logic := 'X';
|
6916 |
|
|
signal cal_data_prev : std_logic := 'X';
|
6917 |
|
|
signal by2_areset : std_logic := '0';
|
6918 |
|
|
signal cal_clk_by2_s : std_logic := '0';
|
6919 |
|
|
signal cal_data_by2_s : std_logic := '0';
|
6920 |
|
|
signal dqs_dynamic_dly_si : integer := 0;
|
6921 |
|
|
begin
|
6922 |
|
|
|
6923 |
|
|
---------------------
|
6924 |
|
|
-- INPUT PATH DELAYs
|
6925 |
|
|
---------------------
|
6926 |
|
|
WireDelay : block
|
6927 |
|
|
begin
|
6928 |
|
|
VitalWireDelay (plldataclk_ipd, plldataclk, tipd_plldataclk);
|
6929 |
|
|
VitalWireDelay (pllcalibrateclk_ipd, pllcalibrateclk, tipd_pllcalibrateclk);
|
6930 |
|
|
VitalWireDelay (delayctrlin_ipd(0), delayctrlin(0), tipd_delayctrlin(0));
|
6931 |
|
|
VitalWireDelay (delayctrlin_ipd(1), delayctrlin(1), tipd_delayctrlin(1));
|
6932 |
|
|
VitalWireDelay (delayctrlin_ipd(2), delayctrlin(2), tipd_delayctrlin(2));
|
6933 |
|
|
VitalWireDelay (delayctrlin_ipd(3), delayctrlin(3), tipd_delayctrlin(3));
|
6934 |
|
|
VitalWireDelay (delayctrlin_ipd(4), delayctrlin(4), tipd_delayctrlin(4));
|
6935 |
|
|
VitalWireDelay (delayctrlin_ipd(5), delayctrlin(5), tipd_delayctrlin(5));
|
6936 |
|
|
VitalWireDelay (disablecalibration_ipd, disablecalibration, tipd_disablecalibration);
|
6937 |
|
|
end block;
|
6938 |
|
|
|
6939 |
|
|
-- generate dynamic delay table and dynamic delay
|
6940 |
|
|
process(delayctrlin_ipd)
|
6941 |
|
|
variable init : boolean := true;
|
6942 |
|
|
variable i : natural := 0;
|
6943 |
|
|
variable w_index_l : integer := 0;
|
6944 |
|
|
variable sim_dly_all : std_logic_vector(2047 downto 0) := (OTHERS => '0');
|
6945 |
|
|
variable dly_table : cycloneii_clkdlycal_int_vec(63 downto 0) := (OTHERS => 0);
|
6946 |
|
|
variable dly_index : integer := 0;
|
6947 |
|
|
begin
|
6948 |
|
|
if (init) then
|
6949 |
|
|
i := 0;
|
6950 |
|
|
sim_dly_all := delay_ctrl_sim_delay_63_48 & delay_ctrl_sim_delay_47_32 & delay_ctrl_sim_delay_31_16 & delay_ctrl_sim_delay_15_0;
|
6951 |
|
|
while ( i < 64 ) loop
|
6952 |
|
|
w_index_l := 32*i;
|
6953 |
|
|
dly_table(i) := conv_integer(sim_dly_all((w_index_l + 31) downto w_index_l));
|
6954 |
|
|
i := i + 1;
|
6955 |
|
|
end loop;
|
6956 |
|
|
|
6957 |
|
|
init := false;
|
6958 |
|
|
end if;
|
6959 |
|
|
|
6960 |
|
|
dly_index := conv_integer(delayctrlin_ipd);
|
6961 |
|
|
if (dly_index >= 0 and dly_index < 64) then
|
6962 |
|
|
dqs_dynamic_dly_si <= dly_table(dly_index);
|
6963 |
|
|
end if;
|
6964 |
|
|
|
6965 |
|
|
end process;
|
6966 |
|
|
|
6967 |
|
|
-- internal clocks
|
6968 |
|
|
by2_areset <= disablecalibration_ipd or (NOT devclrn) or (NOT devpor);
|
6969 |
|
|
|
6970 |
|
|
process(pllcalibrateclk_ipd, by2_areset)
|
6971 |
|
|
begin
|
6972 |
|
|
if (by2_areset = '1' and by2_areset'event) then
|
6973 |
|
|
cal_clk_prev <= 'X';
|
6974 |
|
|
cal_clk_by2_s <= '0';
|
6975 |
|
|
elsif (by2_areset /= '1' and pllcalibrateclk_ipd'event) then
|
6976 |
|
|
cal_clk_prev <= pllcalibrateclk_ipd;
|
6977 |
|
|
if (pllcalibrateclk_ipd = '1' and cal_clk_prev /= 'X') then
|
6978 |
|
|
cal_clk_by2_s <= not cal_clk_by2_s;
|
6979 |
|
|
end if;
|
6980 |
|
|
end if;
|
6981 |
|
|
end process;
|
6982 |
|
|
|
6983 |
|
|
process(plldataclk_ipd, by2_areset)
|
6984 |
|
|
begin
|
6985 |
|
|
if (by2_areset = '1' and by2_areset'event) then
|
6986 |
|
|
cal_data_by2_s <= '0';
|
6987 |
|
|
cal_data_prev <= 'X';
|
6988 |
|
|
elsif (by2_areset /= '1' and plldataclk_ipd'event) then
|
6989 |
|
|
cal_data_prev <= plldataclk_ipd;
|
6990 |
|
|
if (plldataclk_ipd = '1' and cal_data_prev /= 'X') then
|
6991 |
|
|
cal_data_by2_s <= not cal_data_by2_s;
|
6992 |
|
|
end if;
|
6993 |
|
|
end if;
|
6994 |
|
|
|
6995 |
|
|
end process;
|
6996 |
|
|
|
6997 |
|
|
-- timing and delay
|
6998 |
|
|
|
6999 |
|
|
VITAL: process(plldataclk_ipd, pllcalibrateclk_ipd, by2_areset, cal_data_by2_s, cal_clk_by2_s)
|
7000 |
|
|
variable calibratedata_VitalGlitchData : VitalGlitchDataType;
|
7001 |
|
|
variable pllcalibrateclkdelayedout_VitalGlitchData : VitalGlitchDataType;
|
7002 |
|
|
variable calclkout_delay : VitalDelayType01 := (0 ps, 0 ps);
|
7003 |
|
|
begin
|
7004 |
|
|
calclkout_delay := (0 ps, 0 ps); -- included in delay chain
|
7005 |
|
|
for i in calclkout_delay'range loop
|
7006 |
|
|
calclkout_delay(i) := calclkout_delay(i) + (dqs_dynamic_dly_si * 1 ps);
|
7007 |
|
|
end loop;
|
7008 |
|
|
|
7009 |
|
|
----------------------
|
7010 |
|
|
-- Path Delay Section
|
7011 |
|
|
----------------------
|
7012 |
|
|
VitalPathDelay01 (
|
7013 |
|
|
OutSignal => calibratedata,
|
7014 |
|
|
OutSignalName => "calibratedata",
|
7015 |
|
|
OutTemp => cal_data_by2_s,
|
7016 |
|
|
Paths => (0 => (by2_areset'last_event, tpd_disablecalibration_calibratedata, (by2_areset = '1')),
|
7017 |
|
|
1 => (plldataclk_ipd'last_event, tpd_plldataclk_calibratedata, (by2_areset = '0'))),
|
7018 |
|
|
GlitchData => calibratedata_VitalGlitchData,
|
7019 |
|
|
Mode => DefGlitchMode,
|
7020 |
|
|
XOn => XOn,
|
7021 |
|
|
MsgOn => MsgOn );
|
7022 |
|
|
|
7023 |
|
|
VitalPathDelay01 (
|
7024 |
|
|
OutSignal => pllcalibrateclkdelayedout,
|
7025 |
|
|
OutSignalName => "pllcalibrateclkdelayedout",
|
7026 |
|
|
OutTemp => cal_clk_by2_s,
|
7027 |
|
|
Paths => (0 => (by2_areset'last_event, calclkout_delay, (by2_areset = '1')),
|
7028 |
|
|
1 => (pllcalibrateclk_ipd'last_event, calclkout_delay, (by2_areset = '0'))),
|
7029 |
|
|
GlitchData => pllcalibrateclkdelayedout_VitalGlitchData,
|
7030 |
|
|
Mode => DefGlitchMode,
|
7031 |
|
|
XOn => XOn,
|
7032 |
|
|
MsgOn => MsgOn );
|
7033 |
|
|
|
7034 |
|
|
end process;
|
7035 |
|
|
|
7036 |
|
|
end vital_clk_delay_cal_ctrl;
|
7037 |
|
|
|
7038 |
|
|
-----------------------------------------------------------------------
|
7039 |
|
|
--
|
7040 |
|
|
-- Module Name : cycloneii_mac_data_reg
|
7041 |
|
|
--
|
7042 |
|
|
-- Description : Simulation model for the data input register of
|
7043 |
|
|
-- Cyclone II MAC_MULT
|
7044 |
|
|
--
|
7045 |
|
|
-----------------------------------------------------------------------
|
7046 |
|
|
|
7047 |
|
|
LIBRARY IEEE;
|
7048 |
|
|
USE IEEE.VITAL_Primitives.all;
|
7049 |
|
|
USE IEEE.VITAL_Timing.all;
|
7050 |
|
|
USE IEEE.std_logic_1164.all;
|
7051 |
|
|
USE work.cycloneii_atom_pack.all;
|
7052 |
|
|
|
7053 |
|
|
ENTITY cycloneii_mac_data_reg IS
|
7054 |
|
|
GENERIC (
|
7055 |
|
|
TimingChecksOn : Boolean := True;
|
7056 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
7057 |
|
|
XOn : Boolean := DefGlitchXOn;
|
7058 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
7059 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
7060 |
|
|
InstancePath : STRING := "*";
|
7061 |
|
|
tipd_data : VitalDelayArrayType01(17 downto 0) := (OTHERS => DefPropDelay01);
|
7062 |
|
|
tipd_clk : VitalDelayType01 := DefPropDelay01;
|
7063 |
|
|
tipd_ena : VitalDelayType01 := DefPropDelay01;
|
7064 |
|
|
tipd_aclr : VitalDelayType01 := DefPropDelay01;
|
7065 |
|
|
tsetup_data_clk_noedge_posedge : VitalDelayArrayType(17 downto 0) := (OTHERS => DefSetupHoldCnst);
|
7066 |
|
|
thold_data_clk_noedge_posedge : VitalDelayArrayType(17 downto 0) := (OTHERS => DefSetupHoldCnst);
|
7067 |
|
|
tsetup_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7068 |
|
|
thold_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7069 |
|
|
tpd_aclr_dataout_posedge : VitalDelayArrayType01(17 downto 0) := (OTHERS => DefPropDelay01);
|
7070 |
|
|
tpd_clk_dataout_posedge : VitalDelayArrayType01(17 downto 0) := (OTHERS => DefPropDelay01);
|
7071 |
|
|
data_width : integer := 18
|
7072 |
|
|
);
|
7073 |
|
|
PORT (
|
7074 |
|
|
-- INPUT PORTS
|
7075 |
|
|
clk : IN std_logic;
|
7076 |
|
|
data : IN std_logic_vector(17 DOWNTO 0);
|
7077 |
|
|
ena : IN std_logic;
|
7078 |
|
|
aclr : IN std_logic;
|
7079 |
|
|
-- OUTPUT PORTS
|
7080 |
|
|
dataout : OUT std_logic_vector(17 DOWNTO 0)
|
7081 |
|
|
);
|
7082 |
|
|
END cycloneii_mac_data_reg;
|
7083 |
|
|
|
7084 |
|
|
ARCHITECTURE vital_cycloneii_mac_data_reg OF cycloneii_mac_data_reg IS
|
7085 |
|
|
|
7086 |
|
|
SIGNAL data_ipd : std_logic_vector(17 DOWNTO 0);
|
7087 |
|
|
SIGNAL aclr_ipd : std_logic;
|
7088 |
|
|
SIGNAL clk_ipd : std_logic;
|
7089 |
|
|
SIGNAL ena_ipd : std_logic;
|
7090 |
|
|
SIGNAL dataout_tmp : std_logic_vector(17 DOWNTO 0) := (OTHERS => '0');
|
7091 |
|
|
|
7092 |
|
|
BEGIN
|
7093 |
|
|
|
7094 |
|
|
---------------------
|
7095 |
|
|
-- INPUT PATH DELAYs
|
7096 |
|
|
---------------------
|
7097 |
|
|
WireDelay : block
|
7098 |
|
|
begin
|
7099 |
|
|
g1 : for i in data'range generate
|
7100 |
|
|
VitalWireDelay (data_ipd(i), data(i), tipd_data(i));
|
7101 |
|
|
end generate;
|
7102 |
|
|
VitalWireDelay (clk_ipd, clk, tipd_clk);
|
7103 |
|
|
VitalWireDelay (aclr_ipd, aclr, tipd_aclr);
|
7104 |
|
|
VitalWireDelay (ena_ipd, ena, tipd_ena);
|
7105 |
|
|
end block;
|
7106 |
|
|
|
7107 |
|
|
|
7108 |
|
|
process (clk_ipd, aclr_ipd, data_ipd)
|
7109 |
|
|
begin
|
7110 |
|
|
if (aclr_ipd = '1') then
|
7111 |
|
|
dataout_tmp <= (OTHERS => '0');
|
7112 |
|
|
elsif (clk_ipd'event and clk_ipd = '1' and (ena_ipd = '1')) then
|
7113 |
|
|
dataout_tmp <= data_ipd;
|
7114 |
|
|
end if;
|
7115 |
|
|
|
7116 |
|
|
end process;
|
7117 |
|
|
|
7118 |
|
|
sh: block
|
7119 |
|
|
begin
|
7120 |
|
|
g0 : for i in data'range generate
|
7121 |
|
|
process (data_ipd(i),clk_ipd,ena_ipd)
|
7122 |
|
|
variable Tviol_data_clk : std_ulogic := '0';
|
7123 |
|
|
variable TimingData_data_clk : VitalTimingDataType := VitalTimingDataInit;
|
7124 |
|
|
variable Tviol_ena_clk : std_ulogic := '0';
|
7125 |
|
|
variable TimingData_ena_clk : VitalTimingDataType := VitalTimingDataInit;
|
7126 |
|
|
begin
|
7127 |
|
|
|
7128 |
|
|
------------------------
|
7129 |
|
|
-- Timing Check Section
|
7130 |
|
|
------------------------
|
7131 |
|
|
if (TimingChecksOn) then
|
7132 |
|
|
|
7133 |
|
|
VitalSetupHoldCheck (
|
7134 |
|
|
Violation => Tviol_data_clk,
|
7135 |
|
|
TimingData => TimingData_data_clk,
|
7136 |
|
|
TestSignal => data_ipd(i),
|
7137 |
|
|
TestSignalName => "DATA(i)",
|
7138 |
|
|
RefSignal => clk_ipd,
|
7139 |
|
|
RefSignalName => "CLK",
|
7140 |
|
|
SetupHigh => tsetup_data_clk_noedge_posedge(i),
|
7141 |
|
|
SetupLow => tsetup_data_clk_noedge_posedge(i),
|
7142 |
|
|
HoldHigh => thold_data_clk_noedge_posedge(i),
|
7143 |
|
|
HoldLow => thold_data_clk_noedge_posedge(i),
|
7144 |
|
|
CheckEnabled => TO_X01((aclr) OR
|
7145 |
|
|
(NOT ena)) /= '1',
|
7146 |
|
|
RefTransition => '/',
|
7147 |
|
|
HeaderMsg => InstancePath & "/MAC_DATA_REG",
|
7148 |
|
|
XOn => XOnChecks,
|
7149 |
|
|
MsgOn => MsgOnChecks );
|
7150 |
|
|
|
7151 |
|
|
VitalSetupHoldCheck (
|
7152 |
|
|
Violation => Tviol_ena_clk,
|
7153 |
|
|
TimingData => TimingData_ena_clk,
|
7154 |
|
|
TestSignal => ena_ipd,
|
7155 |
|
|
TestSignalName => "ENA",
|
7156 |
|
|
RefSignal => clk_ipd,
|
7157 |
|
|
RefSignalName => "CLK",
|
7158 |
|
|
SetupHigh => tsetup_ena_clk_noedge_posedge,
|
7159 |
|
|
SetupLow => tsetup_ena_clk_noedge_posedge,
|
7160 |
|
|
HoldHigh => thold_ena_clk_noedge_posedge,
|
7161 |
|
|
HoldLow => thold_ena_clk_noedge_posedge,
|
7162 |
|
|
CheckEnabled => TO_X01(aclr) /= '1',
|
7163 |
|
|
RefTransition => '/',
|
7164 |
|
|
HeaderMsg => InstancePath & "/MAC_DATA_REG",
|
7165 |
|
|
XOn => XOnChecks,
|
7166 |
|
|
MsgOn => MsgOnChecks );
|
7167 |
|
|
|
7168 |
|
|
end if;
|
7169 |
|
|
|
7170 |
|
|
END PROCESS;
|
7171 |
|
|
end generate g0;
|
7172 |
|
|
end block;
|
7173 |
|
|
|
7174 |
|
|
----------------------
|
7175 |
|
|
-- Path Delay Section
|
7176 |
|
|
----------------------
|
7177 |
|
|
PathDelay : block
|
7178 |
|
|
begin
|
7179 |
|
|
g1 : for i in dataout_tmp'range generate
|
7180 |
|
|
VITALtiming : process (dataout_tmp(i))
|
7181 |
|
|
variable dataout_VitalGlitchData : VitalGlitchDataType;
|
7182 |
|
|
begin
|
7183 |
|
|
VitalPathDelay01 (OutSignal => dataout(i),
|
7184 |
|
|
OutSignalName => "DATAOUT",
|
7185 |
|
|
OutTemp => dataout_tmp(i),
|
7186 |
|
|
Paths => (0 => (clk_ipd'last_event, tpd_clk_dataout_posedge(i), TRUE),
|
7187 |
|
|
1 => (aclr_ipd'last_event, tpd_aclr_dataout_posedge(i), TRUE)),
|
7188 |
|
|
GlitchData => dataout_VitalGlitchData,
|
7189 |
|
|
Mode => DefGlitchMode,
|
7190 |
|
|
XOn => XOn,
|
7191 |
|
|
MsgOn => MsgOn);
|
7192 |
|
|
end process;
|
7193 |
|
|
end generate;
|
7194 |
|
|
end block;
|
7195 |
|
|
|
7196 |
|
|
END vital_cycloneii_mac_data_reg;
|
7197 |
|
|
|
7198 |
|
|
--------------------------------------------------------------------
|
7199 |
|
|
--
|
7200 |
|
|
-- Module Name : cycloneii_mac_sign_reg
|
7201 |
|
|
--
|
7202 |
|
|
-- Description : Simulation model for the sign input register of
|
7203 |
|
|
-- Cyclone II MAC_MULT
|
7204 |
|
|
--
|
7205 |
|
|
--------------------------------------------------------------------
|
7206 |
|
|
|
7207 |
|
|
LIBRARY IEEE;
|
7208 |
|
|
USE IEEE.VITAL_Primitives.all;
|
7209 |
|
|
USE IEEE.VITAL_Timing.all;
|
7210 |
|
|
USE IEEE.std_logic_1164.all;
|
7211 |
|
|
USE work.cycloneii_atom_pack.all;
|
7212 |
|
|
|
7213 |
|
|
ENTITY cycloneii_mac_sign_reg IS
|
7214 |
|
|
GENERIC (
|
7215 |
|
|
TimingChecksOn : Boolean := True;
|
7216 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
7217 |
|
|
XOn : Boolean := DefGlitchXOn;
|
7218 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
7219 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
7220 |
|
|
InstancePath : STRING := "*";
|
7221 |
|
|
tsetup_d_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7222 |
|
|
thold_d_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7223 |
|
|
tsetup_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7224 |
|
|
thold_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7225 |
|
|
tpd_clk_q_posedge : VitalDelayType01 := DefPropDelay01;
|
7226 |
|
|
tpd_aclr_q_posedge : VitalDelayType01 := DefPropDelay01;
|
7227 |
|
|
tipd_d : VitalDelayType01 := DefPropDelay01;
|
7228 |
|
|
tipd_ena : VitalDelayType01 := DefPropDelay01;
|
7229 |
|
|
tipd_aclr : VitalDelayType01 := DefPropDelay01;
|
7230 |
|
|
tipd_clk : VitalDelayType01 := DefPropDelay01
|
7231 |
|
|
);
|
7232 |
|
|
PORT (
|
7233 |
|
|
-- INPUT PORTS
|
7234 |
|
|
clk : IN std_logic;
|
7235 |
|
|
d : IN std_logic;
|
7236 |
|
|
ena : IN std_logic;
|
7237 |
|
|
aclr : IN std_logic;
|
7238 |
|
|
|
7239 |
|
|
-- OUTPUT PORTS
|
7240 |
|
|
q : OUT std_logic
|
7241 |
|
|
);
|
7242 |
|
|
END cycloneii_mac_sign_reg;
|
7243 |
|
|
|
7244 |
|
|
ARCHITECTURE cycloneii_mac_sign_reg OF cycloneii_mac_sign_reg IS
|
7245 |
|
|
|
7246 |
|
|
signal d_ipd : std_logic;
|
7247 |
|
|
signal clk_ipd : std_logic;
|
7248 |
|
|
signal aclr_ipd : std_logic;
|
7249 |
|
|
signal ena_ipd : std_logic;
|
7250 |
|
|
begin
|
7251 |
|
|
|
7252 |
|
|
---------------------
|
7253 |
|
|
-- INPUT PATH DELAYs
|
7254 |
|
|
---------------------
|
7255 |
|
|
WireDelay : block
|
7256 |
|
|
begin
|
7257 |
|
|
VitalWireDelay (d_ipd, d, tipd_d);
|
7258 |
|
|
VitalWireDelay (clk_ipd, clk, tipd_clk);
|
7259 |
|
|
VitalWireDelay (aclr_ipd, aclr, tipd_aclr);
|
7260 |
|
|
VitalWireDelay (ena_ipd, ena, tipd_ena);
|
7261 |
|
|
end block;
|
7262 |
|
|
|
7263 |
|
|
VITALtiming : process (clk_ipd, aclr_ipd)
|
7264 |
|
|
variable Tviol_d_clk : std_ulogic := '0';
|
7265 |
|
|
variable TimingData_d_clk : VitalTimingDataType := VitalTimingDataInit;
|
7266 |
|
|
variable Tviol_ena_clk : std_ulogic := '0';
|
7267 |
|
|
variable TimingData_ena_clk : VitalTimingDataType := VitalTimingDataInit;
|
7268 |
|
|
variable q_VitalGlitchData : VitalGlitchDataType;
|
7269 |
|
|
variable q_reg : std_logic := '0';
|
7270 |
|
|
begin
|
7271 |
|
|
|
7272 |
|
|
------------------------
|
7273 |
|
|
-- Timing Check Section
|
7274 |
|
|
------------------------
|
7275 |
|
|
if (TimingChecksOn) then
|
7276 |
|
|
|
7277 |
|
|
VitalSetupHoldCheck (
|
7278 |
|
|
Violation => Tviol_d_clk,
|
7279 |
|
|
TimingData => TimingData_d_clk,
|
7280 |
|
|
TestSignal => d,
|
7281 |
|
|
TestSignalName => "D",
|
7282 |
|
|
RefSignal => clk_ipd,
|
7283 |
|
|
RefSignalName => "CLK",
|
7284 |
|
|
SetupHigh => tsetup_d_clk_noedge_posedge,
|
7285 |
|
|
SetupLow => tsetup_d_clk_noedge_posedge,
|
7286 |
|
|
HoldHigh => thold_d_clk_noedge_posedge,
|
7287 |
|
|
HoldLow => thold_d_clk_noedge_posedge,
|
7288 |
|
|
CheckEnabled => TO_X01((aclr) OR
|
7289 |
|
|
(NOT ena)) /= '1',
|
7290 |
|
|
RefTransition => '/',
|
7291 |
|
|
HeaderMsg => InstancePath & "/SIGN_REG",
|
7292 |
|
|
XOn => XOnChecks,
|
7293 |
|
|
MsgOn => MsgOnChecks );
|
7294 |
|
|
|
7295 |
|
|
VitalSetupHoldCheck (
|
7296 |
|
|
Violation => Tviol_ena_clk,
|
7297 |
|
|
TimingData => TimingData_ena_clk,
|
7298 |
|
|
TestSignal => ena,
|
7299 |
|
|
TestSignalName => "ENA",
|
7300 |
|
|
RefSignal => clk_ipd,
|
7301 |
|
|
RefSignalName => "CLK",
|
7302 |
|
|
SetupHigh => tsetup_ena_clk_noedge_posedge,
|
7303 |
|
|
SetupLow => tsetup_ena_clk_noedge_posedge,
|
7304 |
|
|
HoldHigh => thold_ena_clk_noedge_posedge,
|
7305 |
|
|
HoldLow => thold_ena_clk_noedge_posedge,
|
7306 |
|
|
CheckEnabled => TO_X01(aclr) /= '1',
|
7307 |
|
|
RefTransition => '/',
|
7308 |
|
|
HeaderMsg => InstancePath & "/SIGN_REG",
|
7309 |
|
|
XOn => XOnChecks,
|
7310 |
|
|
MsgOn => MsgOnChecks );
|
7311 |
|
|
|
7312 |
|
|
end if;
|
7313 |
|
|
|
7314 |
|
|
if (aclr_ipd = '1') then
|
7315 |
|
|
q_reg := '0';
|
7316 |
|
|
elsif (clk_ipd'event and clk_ipd = '1' and (ena_ipd = '1')) then
|
7317 |
|
|
q_reg := d_ipd;
|
7318 |
|
|
end if;
|
7319 |
|
|
|
7320 |
|
|
----------------------
|
7321 |
|
|
-- Path Delay Section
|
7322 |
|
|
----------------------
|
7323 |
|
|
VitalPathDelay01 (
|
7324 |
|
|
OutSignal => q,
|
7325 |
|
|
OutSignalName => "Q",
|
7326 |
|
|
OutTemp => q_reg,
|
7327 |
|
|
Paths => (0 => (clk_ipd'last_event, tpd_clk_q_posedge, TRUE),
|
7328 |
|
|
1 => (aclr_ipd'last_event, tpd_aclr_q_posedge, TRUE)),
|
7329 |
|
|
GlitchData => q_VitalGlitchData,
|
7330 |
|
|
Mode => DefGlitchMode,
|
7331 |
|
|
XOn => XOn,
|
7332 |
|
|
MsgOn => MsgOn );
|
7333 |
|
|
end process;
|
7334 |
|
|
END cycloneii_mac_sign_reg;
|
7335 |
|
|
|
7336 |
|
|
--------------------------------------------------------------------
|
7337 |
|
|
--
|
7338 |
|
|
-- Module Name : cycloneii_mac_mult_internal
|
7339 |
|
|
--
|
7340 |
|
|
-- Description : Cyclone II MAC_MULT_INTERNAL VHDL simulation model
|
7341 |
|
|
--
|
7342 |
|
|
--------------------------------------------------------------------
|
7343 |
|
|
|
7344 |
|
|
LIBRARY IEEE;
|
7345 |
|
|
USE IEEE.VITAL_Primitives.all;
|
7346 |
|
|
USE IEEE.VITAL_Timing.all;
|
7347 |
|
|
USE IEEE.std_logic_1164.all;
|
7348 |
|
|
USE IEEE.std_logic_arith.all;
|
7349 |
|
|
USE IEEE.std_logic_unsigned.all;
|
7350 |
|
|
USE work.cycloneii_atom_pack.all;
|
7351 |
|
|
|
7352 |
|
|
ENTITY cycloneii_mac_mult_internal IS
|
7353 |
|
|
GENERIC (
|
7354 |
|
|
TimingChecksOn : Boolean := True;
|
7355 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
7356 |
|
|
XOn : Boolean := DefGlitchXOn;
|
7357 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
7358 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
7359 |
|
|
InstancePath : STRING := "*";
|
7360 |
|
|
tipd_dataa : VitalDelayArrayType01(17 downto 0)
|
7361 |
|
|
:= (OTHERS => DefPropDelay01);
|
7362 |
|
|
tipd_datab : VitalDelayArrayType01(17 downto 0)
|
7363 |
|
|
:= (OTHERS => DefPropDelay01);
|
7364 |
|
|
tipd_signa : VitalDelayType01 := DefPropDelay01;
|
7365 |
|
|
tipd_signb : VitalDelayType01 := DefPropDelay01;
|
7366 |
|
|
tpd_dataa_dataout : VitalDelayArrayType01(18*36 -1 downto 0) :=(others => DefPropDelay01);
|
7367 |
|
|
tpd_datab_dataout : VitalDelayArrayType01(18*36 -1 downto 0) :=(others => DefPropDelay01);
|
7368 |
|
|
tpd_signa_dataout : VitalDelayArrayType01(35 downto 0) :=(others => DefPropDelay01);
|
7369 |
|
|
tpd_signb_dataout : VitalDelayArrayType01(35 downto 0) :=(others => DefPropDelay01);
|
7370 |
|
|
dataa_width : integer := 18;
|
7371 |
|
|
datab_width : integer := 18
|
7372 |
|
|
);
|
7373 |
|
|
PORT (
|
7374 |
|
|
dataa : IN std_logic_vector(17 DOWNTO 0) := (OTHERS => '0');
|
7375 |
|
|
datab : IN std_logic_vector(17 DOWNTO 0) := (OTHERS => '0');
|
7376 |
|
|
signa : IN std_logic := '1';
|
7377 |
|
|
signb : IN std_logic := '1';
|
7378 |
|
|
dataout : OUT std_logic_vector((dataa_width+datab_width)-1 DOWNTO 0)
|
7379 |
|
|
);
|
7380 |
|
|
END cycloneii_mac_mult_internal;
|
7381 |
|
|
|
7382 |
|
|
ARCHITECTURE vital_cycloneii_mac_mult_internal OF cycloneii_mac_mult_internal IS
|
7383 |
|
|
|
7384 |
|
|
-- Internal variables
|
7385 |
|
|
SIGNAL dataa_ipd : std_logic_vector(17 DOWNTO 0);
|
7386 |
|
|
SIGNAL datab_ipd : std_logic_vector(17 DOWNTO 0);
|
7387 |
|
|
SIGNAL signa_ipd : std_logic;
|
7388 |
|
|
SIGNAL signb_ipd : std_logic;
|
7389 |
|
|
|
7390 |
|
|
-- padding with 1's for input negation
|
7391 |
|
|
SIGNAL reg_aclr : std_logic;
|
7392 |
|
|
SIGNAL dataout_tmp : STD_LOGIC_VECTOR (dataa_width + datab_width downto 0) := (others => '0');
|
7393 |
|
|
|
7394 |
|
|
BEGIN
|
7395 |
|
|
|
7396 |
|
|
---------------------
|
7397 |
|
|
-- INPUT PATH DELAYs
|
7398 |
|
|
---------------------
|
7399 |
|
|
WireDelay : block
|
7400 |
|
|
begin
|
7401 |
|
|
g1 : for i in dataa'range generate
|
7402 |
|
|
VitalWireDelay (dataa_ipd(i), dataa(i), tipd_dataa(i));
|
7403 |
|
|
end generate;
|
7404 |
|
|
g2 : for i in datab'range generate
|
7405 |
|
|
VitalWireDelay (datab_ipd(i), datab(i), tipd_datab(i));
|
7406 |
|
|
end generate;
|
7407 |
|
|
|
7408 |
|
|
VitalWireDelay (signa_ipd, signa, tipd_signa);
|
7409 |
|
|
VitalWireDelay (signb_ipd, signb, tipd_signb);
|
7410 |
|
|
end block;
|
7411 |
|
|
|
7412 |
|
|
|
7413 |
|
|
VITALtiming : process(dataa_ipd, datab_ipd, signa_ipd, signb_ipd)
|
7414 |
|
|
begin
|
7415 |
|
|
if((signa_ipd = '0') and (signb_ipd = '1')) then
|
7416 |
|
|
dataout_tmp <=
|
7417 |
|
|
unsigned(dataa_ipd(dataa_width-1 downto 0)) *
|
7418 |
|
|
signed(datab_ipd(datab_width-1 downto 0));
|
7419 |
|
|
elsif((signa_ipd = '1') and (signb_ipd = '0')) then
|
7420 |
|
|
dataout_tmp <=
|
7421 |
|
|
signed(dataa_ipd(dataa_width-1 downto 0)) *
|
7422 |
|
|
unsigned(datab_ipd(datab_width-1 downto 0));
|
7423 |
|
|
elsif((signa_ipd = '1') and (signb_ipd = '1')) then
|
7424 |
|
|
dataout_tmp(dataout'range) <=
|
7425 |
|
|
signed(dataa_ipd(dataa_width-1 downto 0)) *
|
7426 |
|
|
signed(datab_ipd(datab_width-1 downto 0));
|
7427 |
|
|
else --((signa_ipd = '0') and (signb_ipd = '0')) then
|
7428 |
|
|
dataout_tmp(dataout'range) <=
|
7429 |
|
|
unsigned(dataa_ipd(dataa_width-1 downto 0)) *
|
7430 |
|
|
unsigned(datab_ipd(datab_width-1 downto 0));
|
7431 |
|
|
end if;
|
7432 |
|
|
end process;
|
7433 |
|
|
|
7434 |
|
|
----------------------
|
7435 |
|
|
-- Path Delay Section
|
7436 |
|
|
----------------------
|
7437 |
|
|
PathDelay : block
|
7438 |
|
|
begin
|
7439 |
|
|
g1 : for i in dataout'range generate
|
7440 |
|
|
VITALtiming : process (dataout_tmp(i))
|
7441 |
|
|
variable dataout_VitalGlitchData : VitalGlitchDataType;
|
7442 |
|
|
begin
|
7443 |
|
|
VitalPathDelay01 (OutSignal => dataout(i),
|
7444 |
|
|
OutSignalName => "dataout",
|
7445 |
|
|
OutTemp => dataout_tmp(i),
|
7446 |
|
|
Paths => (0 => (dataa_ipd'last_event, tpd_dataa_dataout(i), TRUE),
|
7447 |
|
|
1 => (datab_ipd'last_event, tpd_datab_dataout(i), TRUE),
|
7448 |
|
|
2 => (signa'last_event, tpd_signa_dataout(i), TRUE),
|
7449 |
|
|
3 => (signb'last_event, tpd_signb_dataout(i), TRUE)),
|
7450 |
|
|
GlitchData => dataout_VitalGlitchData,
|
7451 |
|
|
Mode => DefGlitchMode,
|
7452 |
|
|
MsgOn => FALSE,
|
7453 |
|
|
XOn => TRUE );
|
7454 |
|
|
end process;
|
7455 |
|
|
end generate;
|
7456 |
|
|
end block;
|
7457 |
|
|
|
7458 |
|
|
END vital_cycloneii_mac_mult_internal;
|
7459 |
|
|
|
7460 |
|
|
--------------------------------------------------------------------
|
7461 |
|
|
--
|
7462 |
|
|
-- Module Name : cycloneii_mac_mult
|
7463 |
|
|
--
|
7464 |
|
|
-- Description : Cyclone II MAC_MULT VHDL simulation model
|
7465 |
|
|
--
|
7466 |
|
|
--------------------------------------------------------------------
|
7467 |
|
|
|
7468 |
|
|
LIBRARY IEEE;
|
7469 |
|
|
USE IEEE.VITAL_Primitives.all;
|
7470 |
|
|
USE IEEE.VITAL_Timing.all;
|
7471 |
|
|
USE IEEE.std_logic_1164.all;
|
7472 |
|
|
USE IEEE.std_logic_arith.all;
|
7473 |
|
|
USE IEEE.std_logic_unsigned.all;
|
7474 |
|
|
USE work.cycloneii_atom_pack.all;
|
7475 |
|
|
USE work.cycloneii_mac_data_reg;
|
7476 |
|
|
USE work.cycloneii_mac_sign_reg;
|
7477 |
|
|
USE work.cycloneii_mac_mult_internal;
|
7478 |
|
|
|
7479 |
|
|
ENTITY cycloneii_mac_mult IS
|
7480 |
|
|
GENERIC (
|
7481 |
|
|
dataa_width : integer := 18;
|
7482 |
|
|
datab_width : integer := 18;
|
7483 |
|
|
dataa_clock : string := "none";
|
7484 |
|
|
datab_clock : string := "none";
|
7485 |
|
|
signa_clock : string := "none";
|
7486 |
|
|
signb_clock : string := "none";
|
7487 |
|
|
TimingChecksOn : Boolean := True;
|
7488 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
7489 |
|
|
XOn : Boolean := DefGlitchXOn;
|
7490 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
7491 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
7492 |
|
|
InstancePath : STRING := "*";
|
7493 |
|
|
lpm_hint : string := "true";
|
7494 |
|
|
lpm_type : string := "cycloneii_mac_mult"
|
7495 |
|
|
);
|
7496 |
|
|
PORT (
|
7497 |
|
|
dataa : IN std_logic_vector(dataa_width-1 DOWNTO 0) := (OTHERS => '0');
|
7498 |
|
|
datab : IN std_logic_vector(datab_width-1 DOWNTO 0) := (OTHERS => '0');
|
7499 |
|
|
signa : IN std_logic := '1';
|
7500 |
|
|
signb : IN std_logic := '1';
|
7501 |
|
|
clk : IN std_logic := '0';
|
7502 |
|
|
aclr : IN std_logic := '0';
|
7503 |
|
|
ena : IN std_logic := '0';
|
7504 |
|
|
dataout : OUT std_logic_vector((dataa_width+datab_width)-1 DOWNTO 0);
|
7505 |
|
|
devclrn : IN std_logic := '1';
|
7506 |
|
|
devpor : IN std_logic := '1'
|
7507 |
|
|
);
|
7508 |
|
|
END cycloneii_mac_mult;
|
7509 |
|
|
|
7510 |
|
|
ARCHITECTURE vital_cycloneii_mac_mult OF cycloneii_mac_mult IS
|
7511 |
|
|
|
7512 |
|
|
COMPONENT cycloneii_mac_data_reg
|
7513 |
|
|
GENERIC (
|
7514 |
|
|
TimingChecksOn : Boolean := True;
|
7515 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
7516 |
|
|
XOn : Boolean := DefGlitchXOn;
|
7517 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
7518 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
7519 |
|
|
InstancePath : STRING := "*";
|
7520 |
|
|
tipd_data : VitalDelayArrayType01(17 downto 0) := (OTHERS => DefPropDelay01);
|
7521 |
|
|
tipd_clk : VitalDelayType01 := DefPropDelay01;
|
7522 |
|
|
tipd_ena : VitalDelayType01 := DefPropDelay01;
|
7523 |
|
|
tipd_aclr : VitalDelayType01 := DefPropDelay01;
|
7524 |
|
|
tsetup_data_clk_noedge_posedge : VitalDelayArrayType(17 downto 0) := (OTHERS => DefSetupHoldCnst);
|
7525 |
|
|
thold_data_clk_noedge_posedge : VitalDelayArrayType(17 downto 0) := (OTHERS => DefSetupHoldCnst);
|
7526 |
|
|
tsetup_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7527 |
|
|
thold_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7528 |
|
|
tpd_aclr_dataout_posedge : VitalDelayArrayType01(17 downto 0) := (OTHERS => DefPropDelay01);
|
7529 |
|
|
tpd_clk_dataout_posedge : VitalDelayArrayType01(17 downto 0) := (OTHERS => DefPropDelay01);
|
7530 |
|
|
data_width : integer := 18
|
7531 |
|
|
);
|
7532 |
|
|
PORT (
|
7533 |
|
|
-- INPUT PORTS
|
7534 |
|
|
clk : IN std_logic;
|
7535 |
|
|
data : IN std_logic_vector(17 DOWNTO 0);
|
7536 |
|
|
ena : IN std_logic;
|
7537 |
|
|
aclr : IN std_logic;
|
7538 |
|
|
-- OUTPUT PORTS
|
7539 |
|
|
dataout : OUT std_logic_vector(17 DOWNTO 0)
|
7540 |
|
|
);
|
7541 |
|
|
END COMPONENT;
|
7542 |
|
|
|
7543 |
|
|
COMPONENT cycloneii_mac_sign_reg
|
7544 |
|
|
GENERIC (
|
7545 |
|
|
TimingChecksOn : Boolean := True;
|
7546 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
7547 |
|
|
XOn : Boolean := DefGlitchXOn;
|
7548 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
7549 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
7550 |
|
|
InstancePath : STRING := "*";
|
7551 |
|
|
tsetup_d_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7552 |
|
|
thold_d_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7553 |
|
|
tsetup_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7554 |
|
|
thold_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7555 |
|
|
tpd_clk_q_posedge : VitalDelayType01 := DefPropDelay01;
|
7556 |
|
|
tpd_aclr_q_posedge : VitalDelayType01 := DefPropDelay01;
|
7557 |
|
|
tipd_d : VitalDelayType01 := DefPropDelay01;
|
7558 |
|
|
tipd_ena : VitalDelayType01 := DefPropDelay01;
|
7559 |
|
|
tipd_aclr : VitalDelayType01 := DefPropDelay01;
|
7560 |
|
|
tipd_clk : VitalDelayType01 := DefPropDelay01
|
7561 |
|
|
);
|
7562 |
|
|
PORT (
|
7563 |
|
|
-- INPUT PORTS
|
7564 |
|
|
clk : IN std_logic;
|
7565 |
|
|
d : IN std_logic;
|
7566 |
|
|
ena : IN std_logic;
|
7567 |
|
|
aclr : IN std_logic;
|
7568 |
|
|
|
7569 |
|
|
-- OUTPUT PORTS
|
7570 |
|
|
q : OUT std_logic
|
7571 |
|
|
);
|
7572 |
|
|
END COMPONENT;
|
7573 |
|
|
|
7574 |
|
|
COMPONENT cycloneii_mac_mult_internal
|
7575 |
|
|
GENERIC (
|
7576 |
|
|
TimingChecksOn : Boolean := True;
|
7577 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
7578 |
|
|
XOn : Boolean := DefGlitchXOn;
|
7579 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
7580 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
7581 |
|
|
InstancePath : STRING := "*";
|
7582 |
|
|
tipd_dataa : VitalDelayArrayType01(17 downto 0)
|
7583 |
|
|
:= (OTHERS => DefPropDelay01);
|
7584 |
|
|
tipd_datab : VitalDelayArrayType01(17 downto 0)
|
7585 |
|
|
:= (OTHERS => DefPropDelay01);
|
7586 |
|
|
tipd_signa : VitalDelayType01 := DefPropDelay01;
|
7587 |
|
|
tipd_signb : VitalDelayType01 := DefPropDelay01;
|
7588 |
|
|
tpd_dataa_dataout : VitalDelayArrayType01(18*36 -1 downto 0) :=(others => DefPropDelay01);
|
7589 |
|
|
tpd_datab_dataout : VitalDelayArrayType01(18*36 -1 downto 0) :=(others => DefPropDelay01);
|
7590 |
|
|
tpd_signa_dataout : VitalDelayArrayType01(35 downto 0) :=(others => DefPropDelay01);
|
7591 |
|
|
tpd_signb_dataout : VitalDelayArrayType01(35 downto 0) :=(others => DefPropDelay01);
|
7592 |
|
|
dataa_width : integer := 18;
|
7593 |
|
|
datab_width : integer := 18
|
7594 |
|
|
);
|
7595 |
|
|
PORT (
|
7596 |
|
|
dataa : IN std_logic_vector(17 DOWNTO 0) := (OTHERS => '0');
|
7597 |
|
|
datab : IN std_logic_vector(17 DOWNTO 0) := (OTHERS => '0');
|
7598 |
|
|
signa : IN std_logic := '1';
|
7599 |
|
|
signb : IN std_logic := '1';
|
7600 |
|
|
dataout : OUT std_logic_vector((dataa_width+datab_width)-1 DOWNTO 0)
|
7601 |
|
|
);
|
7602 |
|
|
END COMPONENT;
|
7603 |
|
|
|
7604 |
|
|
-- Internal variables
|
7605 |
|
|
SIGNAL dataa_ipd : std_logic_vector(17 DOWNTO 0);
|
7606 |
|
|
SIGNAL datab_ipd : std_logic_vector(17 DOWNTO 0);
|
7607 |
|
|
SIGNAL idataa_reg : std_logic_vector(17 DOWNTO 0); -- optional register for dataa input
|
7608 |
|
|
SIGNAL idatab_reg : std_logic_vector(17 DOWNTO 0); -- optional register for datab input
|
7609 |
|
|
SIGNAL isigna_reg : std_logic; -- optional register for signa input
|
7610 |
|
|
SIGNAL isignb_reg : std_logic; -- optional register for signb input
|
7611 |
|
|
SIGNAL idataa_int : std_logic_vector(17 DOWNTO 0); -- dataa as seen by the multiplier input
|
7612 |
|
|
SIGNAL idatab_int : std_logic_vector(17 DOWNTO 0); -- datab as seen by the multiplier input
|
7613 |
|
|
SIGNAL isigna_int : std_logic; -- signa as seen by the multiplier input
|
7614 |
|
|
SIGNAL isignb_int : std_logic; -- signb as seen by the multiplier input
|
7615 |
|
|
-- padding with 1's for input negation
|
7616 |
|
|
SIGNAL reg_aclr : std_logic;
|
7617 |
|
|
SIGNAL dataout_tmp : STD_LOGIC_VECTOR (dataa_width + datab_width downto 0) := (others => '0');
|
7618 |
|
|
|
7619 |
|
|
BEGIN
|
7620 |
|
|
|
7621 |
|
|
---------------------
|
7622 |
|
|
-- INPUT PATH DELAYs
|
7623 |
|
|
---------------------
|
7624 |
|
|
|
7625 |
|
|
reg_aclr <= (NOT devpor) OR (NOT devclrn) OR (aclr) ;
|
7626 |
|
|
|
7627 |
|
|
-- padding input data to full bus width
|
7628 |
|
|
dataa_ipd(dataa_width-1 downto 0) <= dataa;
|
7629 |
|
|
datab_ipd(datab_width-1 downto 0) <= datab;
|
7630 |
|
|
|
7631 |
|
|
-- Optional input registers for dataa,b and signa,b
|
7632 |
|
|
dataa_reg : cycloneii_mac_data_reg
|
7633 |
|
|
GENERIC MAP (
|
7634 |
|
|
data_width => dataa_width)
|
7635 |
|
|
PORT MAP (
|
7636 |
|
|
clk => clk,
|
7637 |
|
|
data => dataa_ipd,
|
7638 |
|
|
ena => ena,
|
7639 |
|
|
aclr => reg_aclr,
|
7640 |
|
|
dataout => idataa_reg);
|
7641 |
|
|
|
7642 |
|
|
datab_reg : cycloneii_mac_data_reg
|
7643 |
|
|
GENERIC MAP (
|
7644 |
|
|
data_width => datab_width)
|
7645 |
|
|
PORT MAP (
|
7646 |
|
|
clk => clk,
|
7647 |
|
|
data => datab_ipd,
|
7648 |
|
|
ena => ena,
|
7649 |
|
|
aclr => reg_aclr,
|
7650 |
|
|
dataout => idatab_reg);
|
7651 |
|
|
|
7652 |
|
|
signa_reg : cycloneii_mac_sign_reg
|
7653 |
|
|
PORT MAP (
|
7654 |
|
|
clk => clk,
|
7655 |
|
|
d => signa,
|
7656 |
|
|
ena => ena,
|
7657 |
|
|
aclr => reg_aclr,
|
7658 |
|
|
q => isigna_reg);
|
7659 |
|
|
|
7660 |
|
|
signb_reg : cycloneii_mac_sign_reg
|
7661 |
|
|
PORT MAP (
|
7662 |
|
|
clk => clk,
|
7663 |
|
|
d => signb,
|
7664 |
|
|
ena => ena,
|
7665 |
|
|
aclr => reg_aclr,
|
7666 |
|
|
q => isignb_reg);
|
7667 |
|
|
|
7668 |
|
|
idataa_int <= dataa_ipd WHEN (dataa_clock = "none") ELSE idataa_reg;
|
7669 |
|
|
idatab_int <= datab_ipd WHEN (datab_clock = "none") ELSE idatab_reg;
|
7670 |
|
|
isigna_int <= signa WHEN (signa_clock = "none") ELSE isigna_reg;
|
7671 |
|
|
isignb_int <= signb WHEN (signb_clock = "none") ELSE isignb_reg;
|
7672 |
|
|
|
7673 |
|
|
mac_multiply : cycloneii_mac_mult_internal
|
7674 |
|
|
GENERIC MAP (
|
7675 |
|
|
dataa_width => dataa_width,
|
7676 |
|
|
datab_width => datab_width
|
7677 |
|
|
)
|
7678 |
|
|
PORT MAP (
|
7679 |
|
|
dataa => idataa_int,
|
7680 |
|
|
datab => idatab_int,
|
7681 |
|
|
signa => isigna_int,
|
7682 |
|
|
signb => isignb_int,
|
7683 |
|
|
dataout => dataout
|
7684 |
|
|
);
|
7685 |
|
|
END vital_cycloneii_mac_mult;
|
7686 |
|
|
|
7687 |
|
|
--------------------------------------------------------------------
|
7688 |
|
|
--
|
7689 |
|
|
-- Module Name : cycloneii_mac_out
|
7690 |
|
|
--
|
7691 |
|
|
-- Description : Cyclone II MAC_OUT VHDL simulation model
|
7692 |
|
|
--
|
7693 |
|
|
--------------------------------------------------------------------
|
7694 |
|
|
|
7695 |
|
|
LIBRARY IEEE;
|
7696 |
|
|
USE IEEE.VITAL_Primitives.all;
|
7697 |
|
|
USE IEEE.VITAL_Timing.all;
|
7698 |
|
|
USE IEEE.std_logic_1164.all;
|
7699 |
|
|
USE work.cycloneii_atom_pack.all;
|
7700 |
|
|
|
7701 |
|
|
ENTITY cycloneii_mac_out IS
|
7702 |
|
|
GENERIC (
|
7703 |
|
|
dataa_width : integer := 1;
|
7704 |
|
|
output_clock : string := "none";
|
7705 |
|
|
TimingChecksOn : Boolean := True;
|
7706 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
7707 |
|
|
XOn : Boolean := DefGlitchXOn;
|
7708 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
7709 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
7710 |
|
|
InstancePath : STRING := "*";
|
7711 |
|
|
tipd_dataa : VitalDelayArrayType01(35 downto 0)
|
7712 |
|
|
:= (OTHERS => DefPropDelay01);
|
7713 |
|
|
tipd_clk : VitalDelayType01 := DefPropDelay01;
|
7714 |
|
|
tipd_ena : VitalDelayType01 := DefPropDelay01;
|
7715 |
|
|
tipd_aclr : VitalDelayType01 := DefPropDelay01;
|
7716 |
|
|
tpd_dataa_dataout :VitalDelayArrayType01(36*36 -1 downto 0) :=(others => DefPropDelay01);
|
7717 |
|
|
tpd_aclr_dataout_posedge : VitalDelayArrayType01(35 downto 0) :=(others => DefPropDelay01);
|
7718 |
|
|
tpd_clk_dataout_posedge :VitalDelayArrayType01(35 downto 0) :=(others => DefPropDelay01);
|
7719 |
|
|
tsetup_dataa_clk_noedge_posedge : VitalDelayArrayType(35 downto 0) := (OTHERS => DefSetupHoldCnst);
|
7720 |
|
|
thold_dataa_clk_noedge_posedge : VitalDelayArrayType(35 downto 0) := (OTHERS => DefSetupHoldCnst);
|
7721 |
|
|
tsetup_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7722 |
|
|
thold_ena_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7723 |
|
|
lpm_hint : string := "true";
|
7724 |
|
|
lpm_type : string := "cycloneii_mac_out");
|
7725 |
|
|
PORT (
|
7726 |
|
|
dataa : IN std_logic_vector(dataa_width-1 DOWNTO 0) := (OTHERS => '0');
|
7727 |
|
|
clk : IN std_logic := '0';
|
7728 |
|
|
aclr : IN std_logic := '0';
|
7729 |
|
|
ena : IN std_logic := '1';
|
7730 |
|
|
dataout : OUT std_logic_vector(dataa_width-1 DOWNTO 0);
|
7731 |
|
|
devclrn : IN std_logic := '1';
|
7732 |
|
|
devpor : IN std_logic := '1'
|
7733 |
|
|
);
|
7734 |
|
|
END cycloneii_mac_out;
|
7735 |
|
|
|
7736 |
|
|
ARCHITECTURE vital_cycloneii_mac_out OF cycloneii_mac_out IS
|
7737 |
|
|
|
7738 |
|
|
-- internal variables
|
7739 |
|
|
SIGNAL dataa_ipd : std_logic_vector(dataa'range);
|
7740 |
|
|
SIGNAL clk_ipd : std_logic;
|
7741 |
|
|
SIGNAL aclr_ipd : std_logic;
|
7742 |
|
|
SIGNAL ena_ipd : std_logic;
|
7743 |
|
|
|
7744 |
|
|
-- optional register
|
7745 |
|
|
SIGNAL use_reg : std_logic;
|
7746 |
|
|
|
7747 |
|
|
SIGNAL dataout_tmp : std_logic_vector(dataout'range) := (OTHERS => '0');
|
7748 |
|
|
|
7749 |
|
|
BEGIN
|
7750 |
|
|
|
7751 |
|
|
---------------------
|
7752 |
|
|
-- PATH DELAYs
|
7753 |
|
|
---------------------
|
7754 |
|
|
WireDelay : block
|
7755 |
|
|
begin
|
7756 |
|
|
g1 : for i in dataa'range generate
|
7757 |
|
|
VitalWireDelay (dataa_ipd(i), dataa(i), tipd_dataa(i));
|
7758 |
|
|
VITALtiming : process (clk_ipd, aclr_ipd, dataout_tmp(i))
|
7759 |
|
|
variable dataout_VitalGlitchData : VitalGlitchDataType;
|
7760 |
|
|
begin
|
7761 |
|
|
VitalPathDelay01 (
|
7762 |
|
|
OutSignal => dataout(i),
|
7763 |
|
|
OutSignalName => "DATAOUT",
|
7764 |
|
|
OutTemp => dataout_tmp(i),
|
7765 |
|
|
Paths => (0 => (clk_ipd'last_event, tpd_clk_dataout_posedge(i), use_reg = '1'),
|
7766 |
|
|
1 => (aclr_ipd'last_event, tpd_aclr_dataout_posedge(i), use_reg = '1'),
|
7767 |
|
|
2 => (dataa_ipd(i)'last_event, tpd_dataa_dataout(i), use_reg = '0')),
|
7768 |
|
|
GlitchData => dataout_VitalGlitchData,
|
7769 |
|
|
Mode => DefGlitchMode,
|
7770 |
|
|
XOn => XOn,
|
7771 |
|
|
MsgOn => MsgOn );
|
7772 |
|
|
end process;
|
7773 |
|
|
end generate;
|
7774 |
|
|
|
7775 |
|
|
VitalWireDelay (clk_ipd, clk, tipd_clk);
|
7776 |
|
|
VitalWireDelay (aclr_ipd, aclr, tipd_aclr);
|
7777 |
|
|
VitalWireDelay (ena_ipd, ena, tipd_ena);
|
7778 |
|
|
|
7779 |
|
|
end block;
|
7780 |
|
|
|
7781 |
|
|
use_reg <= '1' WHEN (output_clock /= "none") ELSE '0';
|
7782 |
|
|
|
7783 |
|
|
sh: block
|
7784 |
|
|
begin
|
7785 |
|
|
g0 : for i in dataa'range generate
|
7786 |
|
|
VITALtiming : process (clk_ipd, ena_ipd, dataa_ipd(i))
|
7787 |
|
|
variable Tviol_dataa_clk : std_ulogic := '0';
|
7788 |
|
|
variable TimingData_dataa_clk : VitalTimingDataType := VitalTimingDataInit;
|
7789 |
|
|
variable Tviol_ena_clk : std_ulogic := '0';
|
7790 |
|
|
variable TimingData_ena_clk : VitalTimingDataType := VitalTimingDataInit;
|
7791 |
|
|
begin
|
7792 |
|
|
|
7793 |
|
|
------------------------
|
7794 |
|
|
-- Timing Check Section
|
7795 |
|
|
------------------------
|
7796 |
|
|
if (TimingChecksOn) then
|
7797 |
|
|
|
7798 |
|
|
VitalSetupHoldCheck (
|
7799 |
|
|
Violation => Tviol_dataa_clk,
|
7800 |
|
|
TimingData => TimingData_dataa_clk,
|
7801 |
|
|
TestSignal => dataa(i),
|
7802 |
|
|
TestSignalName => "D",
|
7803 |
|
|
RefSignal => clk_ipd,
|
7804 |
|
|
RefSignalName => "CLK",
|
7805 |
|
|
SetupHigh => tsetup_dataa_clk_noedge_posedge(i),
|
7806 |
|
|
SetupLow => tsetup_dataa_clk_noedge_posedge(i),
|
7807 |
|
|
HoldHigh => thold_dataa_clk_noedge_posedge(i),
|
7808 |
|
|
HoldLow => thold_dataa_clk_noedge_posedge(i),
|
7809 |
|
|
CheckEnabled => TO_X01((aclr) OR (NOT use_reg) OR
|
7810 |
|
|
(NOT ena)) /= '1',
|
7811 |
|
|
RefTransition => '/',
|
7812 |
|
|
HeaderMsg => InstancePath & "/MAC_DATA_REG",
|
7813 |
|
|
XOn => XOnChecks,
|
7814 |
|
|
MsgOn => MsgOnChecks );
|
7815 |
|
|
|
7816 |
|
|
VitalSetupHoldCheck (
|
7817 |
|
|
Violation => Tviol_ena_clk,
|
7818 |
|
|
TimingData => TimingData_ena_clk,
|
7819 |
|
|
TestSignal => ena,
|
7820 |
|
|
TestSignalName => "ENA",
|
7821 |
|
|
RefSignal => clk_ipd,
|
7822 |
|
|
RefSignalName => "CLK",
|
7823 |
|
|
SetupHigh => tsetup_ena_clk_noedge_posedge,
|
7824 |
|
|
SetupLow => tsetup_ena_clk_noedge_posedge,
|
7825 |
|
|
HoldHigh => thold_ena_clk_noedge_posedge,
|
7826 |
|
|
HoldLow => thold_ena_clk_noedge_posedge,
|
7827 |
|
|
CheckEnabled => TO_X01((aclr) OR
|
7828 |
|
|
(NOT use_reg)) /= '1',
|
7829 |
|
|
RefTransition => '/',
|
7830 |
|
|
HeaderMsg => InstancePath & "/MAC_DATA_REG",
|
7831 |
|
|
XOn => XOnChecks,
|
7832 |
|
|
MsgOn => MsgOnChecks );
|
7833 |
|
|
|
7834 |
|
|
end if;
|
7835 |
|
|
END PROCESS;
|
7836 |
|
|
end generate g0;
|
7837 |
|
|
end block;
|
7838 |
|
|
|
7839 |
|
|
process (clk_ipd, aclr_ipd,ena_ipd, dataa_ipd)
|
7840 |
|
|
begin
|
7841 |
|
|
if (use_reg = '0') then
|
7842 |
|
|
dataout_tmp <= dataa_ipd;
|
7843 |
|
|
else
|
7844 |
|
|
if (aclr_ipd = '1') then
|
7845 |
|
|
dataout_tmp <= (OTHERS => '0');
|
7846 |
|
|
elsif (clk_ipd'event and clk_ipd = '1' and (ena_ipd = '1')) then
|
7847 |
|
|
dataout_tmp <= dataa_ipd;
|
7848 |
|
|
end if;
|
7849 |
|
|
end if;
|
7850 |
|
|
|
7851 |
|
|
end process;
|
7852 |
|
|
|
7853 |
|
|
END vital_cycloneii_mac_out;
|
7854 |
|
|
|
7855 |
|
|
|
7856 |
|
|
--/////////////////////////////////////////////////////////////////////////////
|
7857 |
|
|
--
|
7858 |
|
|
-- Entity Name : cycloneii_ena_reg
|
7859 |
|
|
--
|
7860 |
|
|
-- Description : Simulation model for a simple DFF.
|
7861 |
|
|
-- This is used for the gated clock generation
|
7862 |
|
|
-- Powers upto 1.
|
7863 |
|
|
--
|
7864 |
|
|
--/////////////////////////////////////////////////////////////////////////////
|
7865 |
|
|
|
7866 |
|
|
LIBRARY IEEE;
|
7867 |
|
|
USE IEEE.std_logic_1164.all;
|
7868 |
|
|
use IEEE.VITAL_Timing.all;
|
7869 |
|
|
use IEEE.VITAL_Primitives.all;
|
7870 |
|
|
use work.cycloneii_atom_pack.all;
|
7871 |
|
|
|
7872 |
|
|
ENTITY cycloneii_ena_reg is
|
7873 |
|
|
generic (
|
7874 |
|
|
TimingChecksOn : Boolean := True;
|
7875 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
7876 |
|
|
XOn : Boolean := DefGlitchXOn;
|
7877 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
7878 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
7879 |
|
|
InstancePath : STRING := "*";
|
7880 |
|
|
tsetup_d_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7881 |
|
|
thold_d_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
7882 |
|
|
tpd_clk_q_posedge : VitalDelayType01 := DefPropDelay01;
|
7883 |
|
|
tipd_d : VitalDelayType01 := DefPropDelay01;
|
7884 |
|
|
tipd_clk : VitalDelayType01 := DefPropDelay01
|
7885 |
|
|
);
|
7886 |
|
|
PORT (
|
7887 |
|
|
clk : in std_logic;
|
7888 |
|
|
ena : in std_logic := '1';
|
7889 |
|
|
d : in std_logic;
|
7890 |
|
|
clrn : in std_logic := '1';
|
7891 |
|
|
prn : in std_logic := '1';
|
7892 |
|
|
q : out std_logic
|
7893 |
|
|
);
|
7894 |
|
|
attribute VITAL_LEVEL0 of cycloneii_ena_reg : entity is TRUE;
|
7895 |
|
|
end cycloneii_ena_reg;
|
7896 |
|
|
|
7897 |
|
|
ARCHITECTURE behave of cycloneii_ena_reg is
|
7898 |
|
|
attribute VITAL_LEVEL0 of behave : architecture is TRUE;
|
7899 |
|
|
signal d_ipd : std_logic;
|
7900 |
|
|
signal clk_ipd : std_logic;
|
7901 |
|
|
begin
|
7902 |
|
|
|
7903 |
|
|
---------------------
|
7904 |
|
|
-- INPUT PATH DELAYs
|
7905 |
|
|
---------------------
|
7906 |
|
|
WireDelay : block
|
7907 |
|
|
begin
|
7908 |
|
|
VitalWireDelay (d_ipd, d, tipd_d);
|
7909 |
|
|
VitalWireDelay (clk_ipd, clk, tipd_clk);
|
7910 |
|
|
end block;
|
7911 |
|
|
|
7912 |
|
|
VITALtiming : process (clk_ipd, prn, clrn)
|
7913 |
|
|
variable Tviol_d_clk : std_ulogic := '0';
|
7914 |
|
|
variable TimingData_d_clk : VitalTimingDataType := VitalTimingDataInit;
|
7915 |
|
|
variable q_VitalGlitchData : VitalGlitchDataType;
|
7916 |
|
|
variable q_reg : std_logic := '1';
|
7917 |
|
|
begin
|
7918 |
|
|
|
7919 |
|
|
------------------------
|
7920 |
|
|
-- Timing Check Section
|
7921 |
|
|
------------------------
|
7922 |
|
|
if (TimingChecksOn) then
|
7923 |
|
|
|
7924 |
|
|
VitalSetupHoldCheck (
|
7925 |
|
|
Violation => Tviol_d_clk,
|
7926 |
|
|
TimingData => TimingData_d_clk,
|
7927 |
|
|
TestSignal => d,
|
7928 |
|
|
TestSignalName => "D",
|
7929 |
|
|
RefSignal => clk_ipd,
|
7930 |
|
|
RefSignalName => "CLK",
|
7931 |
|
|
SetupHigh => tsetup_d_clk_noedge_posedge,
|
7932 |
|
|
SetupLow => tsetup_d_clk_noedge_posedge,
|
7933 |
|
|
HoldHigh => thold_d_clk_noedge_posedge,
|
7934 |
|
|
HoldLow => thold_d_clk_noedge_posedge,
|
7935 |
|
|
CheckEnabled => TO_X01((clrn) OR
|
7936 |
|
|
(NOT ena)) /= '1',
|
7937 |
|
|
RefTransition => '/',
|
7938 |
|
|
HeaderMsg => InstancePath & "/cycloneii_ena_reg",
|
7939 |
|
|
XOn => XOnChecks,
|
7940 |
|
|
MsgOn => MsgOnChecks );
|
7941 |
|
|
|
7942 |
|
|
end if;
|
7943 |
|
|
|
7944 |
|
|
if (prn = '0') then
|
7945 |
|
|
q_reg := '1';
|
7946 |
|
|
elsif (clrn = '0') then
|
7947 |
|
|
q_reg := '0';
|
7948 |
|
|
elsif (clk_ipd'event and clk_ipd = '1' and clk_ipd'last_value = '0' and (ena = '1')) then
|
7949 |
|
|
q_reg := d_ipd;
|
7950 |
|
|
end if;
|
7951 |
|
|
|
7952 |
|
|
----------------------
|
7953 |
|
|
-- Path Delay Section
|
7954 |
|
|
----------------------
|
7955 |
|
|
VitalPathDelay01 (
|
7956 |
|
|
OutSignal => q,
|
7957 |
|
|
OutSignalName => "Q",
|
7958 |
|
|
OutTemp => q_reg,
|
7959 |
|
|
Paths => (0 => (clk_ipd'last_event, tpd_clk_q_posedge, TRUE)),
|
7960 |
|
|
GlitchData => q_VitalGlitchData,
|
7961 |
|
|
Mode => DefGlitchMode,
|
7962 |
|
|
XOn => XOn,
|
7963 |
|
|
MsgOn => MsgOn );
|
7964 |
|
|
|
7965 |
|
|
end process;
|
7966 |
|
|
|
7967 |
|
|
end behave;
|
7968 |
|
|
|
7969 |
|
|
--/////////////////////////////////////////////////////////////////////////////
|
7970 |
|
|
--
|
7971 |
|
|
-- VHDL Simulation Model for Cyclone II CLKCTRL Atom
|
7972 |
|
|
--
|
7973 |
|
|
--/////////////////////////////////////////////////////////////////////////////
|
7974 |
|
|
|
7975 |
|
|
--
|
7976 |
|
|
--
|
7977 |
|
|
-- CYCLONEII_CLKCTRL Model
|
7978 |
|
|
--
|
7979 |
|
|
--
|
7980 |
|
|
LIBRARY IEEE;
|
7981 |
|
|
use IEEE.std_logic_1164.all;
|
7982 |
|
|
use IEEE.VITAL_Timing.all;
|
7983 |
|
|
use IEEE.VITAL_Primitives.all;
|
7984 |
|
|
use work.cycloneii_atom_pack.all;
|
7985 |
|
|
use work.cycloneii_ena_reg;
|
7986 |
|
|
|
7987 |
|
|
entity cycloneii_clkctrl is
|
7988 |
|
|
generic (
|
7989 |
|
|
clock_type : STRING := "Auto";
|
7990 |
|
|
lpm_type : STRING := "cycloneii_clkctrl";
|
7991 |
|
|
ena_register_mode : STRING := "Falling Edge";
|
7992 |
|
|
TimingChecksOn : Boolean := True;
|
7993 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
7994 |
|
|
XOn : Boolean := DefGlitchXOn;
|
7995 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
7996 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
7997 |
|
|
InstancePath : STRING := "*";
|
7998 |
|
|
tipd_inclk : VitalDelayArrayType01(3 downto 0) := (OTHERS => DefPropDelay01);
|
7999 |
|
|
tipd_clkselect : VitalDelayArrayType01(1 downto 0) := (OTHERS => DefPropDelay01);
|
8000 |
|
|
tipd_ena : VitalDelayType01 := DefPropDelay01
|
8001 |
|
|
);
|
8002 |
|
|
port (
|
8003 |
|
|
inclk : in std_logic_vector(3 downto 0) := "0000";
|
8004 |
|
|
clkselect : in std_logic_vector(1 downto 0) := "00";
|
8005 |
|
|
ena : in std_logic := '1';
|
8006 |
|
|
devclrn : in std_logic := '1';
|
8007 |
|
|
devpor : in std_logic := '1';
|
8008 |
|
|
outclk : out std_logic
|
8009 |
|
|
);
|
8010 |
|
|
attribute VITAL_LEVEL0 of cycloneii_clkctrl : entity is TRUE;
|
8011 |
|
|
end cycloneii_clkctrl;
|
8012 |
|
|
|
8013 |
|
|
architecture vital_clkctrl of cycloneii_clkctrl is
|
8014 |
|
|
attribute VITAL_LEVEL0 of vital_clkctrl : architecture is TRUE;
|
8015 |
|
|
|
8016 |
|
|
component cycloneii_ena_reg
|
8017 |
|
|
generic (
|
8018 |
|
|
TimingChecksOn : Boolean := True;
|
8019 |
|
|
MsgOn : Boolean := DefGlitchMsgOn;
|
8020 |
|
|
XOn : Boolean := DefGlitchXOn;
|
8021 |
|
|
MsgOnChecks : Boolean := DefMsgOnChecks;
|
8022 |
|
|
XOnChecks : Boolean := DefXOnChecks;
|
8023 |
|
|
InstancePath : STRING := "*";
|
8024 |
|
|
tsetup_d_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
8025 |
|
|
thold_d_clk_noedge_posedge : VitalDelayType := DefSetupHoldCnst;
|
8026 |
|
|
tpd_clk_q_posedge : VitalDelayType01 := DefPropDelay01;
|
8027 |
|
|
tipd_d : VitalDelayType01 := DefPropDelay01;
|
8028 |
|
|
tipd_clk : VitalDelayType01 := DefPropDelay01
|
8029 |
|
|
);
|
8030 |
|
|
PORT (
|
8031 |
|
|
clk : in std_logic;
|
8032 |
|
|
ena : in std_logic := '1';
|
8033 |
|
|
d : in std_logic;
|
8034 |
|
|
clrn : in std_logic := '1';
|
8035 |
|
|
prn : in std_logic := '1';
|
8036 |
|
|
q : out std_logic
|
8037 |
|
|
);
|
8038 |
|
|
end component;
|
8039 |
|
|
|
8040 |
|
|
signal inclk_ipd : std_logic_vector(3 downto 0);
|
8041 |
|
|
signal clkselect_ipd : std_logic_vector(1 downto 0);
|
8042 |
|
|
signal ena_ipd : std_logic;
|
8043 |
|
|
signal clkmux_out : std_logic;
|
8044 |
|
|
signal clkmux_out_inv : std_logic;
|
8045 |
|
|
signal cereg_clr : std_logic;
|
8046 |
|
|
signal cereg_out : std_logic;
|
8047 |
|
|
signal ena_out : std_logic;
|
8048 |
|
|
signal vcc : std_logic := '1';
|
8049 |
|
|
begin
|
8050 |
|
|
|
8051 |
|
|
---------------------
|
8052 |
|
|
-- INPUT PATH DELAYs
|
8053 |
|
|
---------------------
|
8054 |
|
|
WireDelay : block
|
8055 |
|
|
begin
|
8056 |
|
|
VitalWireDelay (ena_ipd, ena, tipd_ena);
|
8057 |
|
|
VitalWireDelay (inclk_ipd(0), inclk(0), tipd_inclk(0));
|
8058 |
|
|
VitalWireDelay (inclk_ipd(1), inclk(1), tipd_inclk(1));
|
8059 |
|
|
VitalWireDelay (inclk_ipd(2), inclk(2), tipd_inclk(2));
|
8060 |
|
|
VitalWireDelay (inclk_ipd(3), inclk(3), tipd_inclk(3));
|
8061 |
|
|
VitalWireDelay (clkselect_ipd(0), clkselect(0), tipd_clkselect(0));
|
8062 |
|
|
VitalWireDelay (clkselect_ipd(1), clkselect(1), tipd_clkselect(1));
|
8063 |
|
|
end block;
|
8064 |
|
|
|
8065 |
|
|
process(inclk_ipd, clkselect_ipd)
|
8066 |
|
|
variable tmp : std_logic;
|
8067 |
|
|
begin
|
8068 |
|
|
if (clkselect_ipd = "11") then
|
8069 |
|
|
tmp := inclk_ipd(3);
|
8070 |
|
|
elsif (clkselect_ipd = "10") then
|
8071 |
|
|
tmp := inclk_ipd(2);
|
8072 |
|
|
elsif (clkselect_ipd = "01") then
|
8073 |
|
|
tmp := inclk_ipd(1);
|
8074 |
|
|
else
|
8075 |
|
|
tmp := inclk_ipd(0);
|
8076 |
|
|
end if;
|
8077 |
|
|
clkmux_out <= tmp;
|
8078 |
|
|
clkmux_out_inv <= NOT tmp;
|
8079 |
|
|
end process;
|
8080 |
|
|
|
8081 |
|
|
extena0_reg : cycloneii_ena_reg
|
8082 |
|
|
port map (
|
8083 |
|
|
clk => clkmux_out_inv,
|
8084 |
|
|
ena => vcc,
|
8085 |
|
|
d => ena_ipd,
|
8086 |
|
|
clrn => vcc,
|
8087 |
|
|
prn => devpor,
|
8088 |
|
|
q => cereg_out
|
8089 |
|
|
);
|
8090 |
|
|
|
8091 |
|
|
ena_out <= cereg_out WHEN (ena_register_mode = "falling edge") ELSE ena_ipd;
|
8092 |
|
|
|
8093 |
|
|
outclk <= ena_out AND clkmux_out;
|
8094 |
|
|
|
8095 |
|
|
end vital_clkctrl;
|
8096 |
|
|
|