OpenCores
URL https://opencores.org/ocsvn/avr_hp/avr_hp/trunk

Subversion Repositories avr_hp

[/] [avr_hp/] [trunk/] [rtl/] [rtl_orig/] [avr_core.vhd] - Blame information for rev 2

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 2 tobil 
--************************************************************************************************
2 
--  Top entity for AVR core
3 
--  Version 1.82? (Special version for the JTAG OCD)
4 
--  Designed by Ruslan Lepetenok
5 
--  Modified 31.08.2006
6 
--  SLEEP and CLRWDT instructions support was added
7 
--  BREAK instructions support was added
8 
--  PM clock enable was added
9 
--************************************************************************************************
10 
 
11 
library IEEE;
12 
use IEEE.std_logic_1164.all;
13 
 
14 
 
15 
entity AVR_Core is port(
16 
                        --Clock and reset
17 
                            cp2         : in  std_logic;
18 
                                                cp2en       : in  std_logic;
19 
                        ireset      : in  std_logic;
20 
                                            -- JTAG OCD support
21 
                                            valid_instr : out std_logic;
22 
                                                insert_nop  : in  std_logic;
23 
                                                block_irq   : in  std_logic;
24 
                                                change_flow : out std_logic;
25 
                        -- Program Memory
26 
                        pc          : out std_logic_vector(15 downto 0);
27 
                        inst        : in  std_logic_vector(15 downto 0);
28 
                        -- I/O control
29 
                        adr         : out std_logic_vector(5 downto 0);
30 
                        iore        : out std_logic;
31 
                        iowe        : out std_logic;
32 
                        -- Data memory control
33 
                        ramadr      : out std_logic_vector(15 downto 0);
34 
                        ramre       : out std_logic;
35 
                        ramwe       : out std_logic;
36 
                                                cpuwait     : in  std_logic;
37 
                                                -- Data paths
38 
                        dbusin      : in  std_logic_vector(7 downto 0);
39 
                        dbusout     : out std_logic_vector(7 downto 0);
40 
                        -- Interrupt
41 
                        irqlines    : in  std_logic_vector(22 downto 0);
42 
                        irqack      : out std_logic;
43 
                        irqackad    : out std_logic_vector(4 downto 0);
44 
                        --Sleep Control
45 
                        sleepi      : out std_logic;
46 
                        irqok       : out std_logic;
47 
                        globint     : out std_logic;
48 
                        --Watchdog
49 
                        wdri        : out std_logic
50 
                                                );
51 
end AVR_Core;
52 
 
53 
 
54 
architecture Struct of avr_core is
55 
 
56 
component pm_fetch_dec is port(
57 
                              -- Clock and reset
58 
                              cp2              : in  std_logic;
59 
                                                          cp2en            : in  std_logic;
60 
                              ireset           : in  std_logic;
61 
                                                          -- JTAG OCD support
62 
                                                  valid_instr      : out  std_logic;
63 
                                                      insert_nop       : in std_logic;
64 
                                                      block_irq        : in std_logic;
65 
                                                      change_flow      : out  std_logic;
66 
                              -- Program memory
67 
                              pc               : out std_logic_vector (15 downto 0);
68 
                              inst             : in  std_logic_vector (15 downto 0);
69 
                              -- I/O control
70 
                              adr              : out std_logic_vector (5 downto 0);
71 
                              iore             : out std_logic;
72 
                              iowe             : out std_logic;
73 
                              -- Data memory control
74 
                              ramadr           : out std_logic_vector (15 downto 0);
75 
                              ramre            : out std_logic;
76 
                              ramwe            : out std_logic;
77 
                              cpuwait          : in  std_logic;
78 
                                                          -- Data paths
79 
                              dbusin           : in  std_logic_vector (7 downto 0);
80 
                              dbusout          : out std_logic_vector (7 downto 0);
81 
                              dbusout_int_route : out std_logic_vector (7 downto 0);
82 
                              -- Interrupt
83 
                              irqlines         : in  std_logic_vector (22 downto 0);
84 
                              irqack           : out std_logic;
85 
                              irqackad         : out std_logic_vector(4 downto 0);
86 
                                                      --Sleep
87 
                              sleepi           : out std_logic;
88 
                              irqok                : out std_logic;
89 
                              --Watchdog
90 
                              wdri                 : out std_logic;
91 
                                                          -- ALU interface(Data inputs)
92 
                              alu_data_r_in    : out std_logic_vector(7 downto 0);
93 
                                                          -- ALU interface(Instruction inputs)
94 
                                                          idc_add_out      : out std_logic;
95 
                              idc_adc_out      : out std_logic;
96 
                              idc_adiw_out     : out std_logic;
97 
                              idc_sub_out      : out std_logic;
98 
                              idc_subi_out     : out std_logic;
99 
                              idc_sbc_out      : out std_logic;
100 
                              idc_sbci_out     : out std_logic;
101 
                              idc_sbiw_out     : out std_logic;
102 
 
103 
                              adiw_st_out      : out std_logic;
104 
                              sbiw_st_out      : out std_logic;
105 
 
106 
                              idc_and_out      : out std_logic;
107 
                              idc_andi_out     : out std_logic;
108 
                              idc_or_out       : out std_logic;
109 
                              idc_ori_out      : out std_logic;
110 
                              idc_eor_out      : out std_logic;
111 
                              idc_com_out      : out std_logic;
112 
                              idc_neg_out      : out std_logic;
113 
 
114 
                              idc_inc_out      : out std_logic;
115 
                              idc_dec_out      : out std_logic;
116 
 
117 
                              idc_cp_out       : out std_logic;
118 
                              idc_cpc_out      : out std_logic;
119 
                              idc_cpi_out      : out std_logic;
120 
                              idc_cpse_out     : out std_logic;
121 
 
122 
                              idc_lsr_out      : out std_logic;
123 
                              idc_ror_out      : out std_logic;
124 
                              idc_asr_out      : out std_logic;
125 
                              idc_swap_out     : out std_logic;
126 
 
127 
                               -- ALU interface(Data output)
128 
                               alu_data_out    : in std_logic_vector(7 downto 0);
129 
 
130 
                               -- ALU interface(Flag outputs)
131 
                               alu_c_flag_out  : in std_logic;
132 
                               alu_z_flag_out  : in std_logic;
133 
                               alu_n_flag_out  : in std_logic;
134 
                               alu_v_flag_out  : in std_logic;
135 
                               alu_s_flag_out  : in std_logic;
136 
                               alu_h_flag_out  : in std_logic;
137 
 
138 
                                                           -- General purpose register file interface
139 
                               reg_rd_in       : out std_logic_vector  (7 downto 0);
140 
                               reg_rd_out      : in  std_logic_vector  (7 downto 0);
141 
                               reg_rd_out_int  : in std_logic_vector(7 downto 0);
142 
                               reg_rd_adr      : out std_logic_vector  (4 downto 0);
143 
                               reg_rd_adr_int      : out std_logic_vector  (4 downto 0);
144 
                               reg_rr_out      : in  std_logic_vector  (7 downto 0);
145 
                               reg_rr_adr      : out std_logic_vector  (4 downto 0);
146 
                               reg_rd_wr       : out std_logic;
147 
 
148 
                               post_inc        : out std_logic;                       -- POST INCREMENT FOR LD/ST INSTRUCTIONS
149 
                               pre_dec         : out std_logic;                        -- PRE DECREMENT FOR LD/ST INSTRUCTIONS
150 
                               reg_h_wr        : out std_logic;
151 
                               reg_h_out       : in  std_logic_vector (15 downto 0);
152 
                               reg_h_adr       : out std_logic_vector (2 downto 0);    -- x,y,z
153 
                                       reg_z_out       : in  std_logic_vector (15 downto 0);  -- OUTPUT OF R31:R30 FOR LPM/ELPM/IJMP INSTRUCTIONS
154 
 
155 
                               -- I/O register file interface
156 
                               sreg_fl_in      : out std_logic_vector(7 downto 0);
157 
                               globint         : in  std_logic; -- SREG I flag
158 
 
159 
                               sreg_fl_wr_en   : out std_logic_vector(7 downto 0);   --FLAGS WRITE ENABLE SIGNALS
160 
 
161 
                               spl_out         : in  std_logic_vector(7 downto 0);
162 
                               sph_out         : in  std_logic_vector(7 downto 0);
163 
                               sp_ndown_up     : out std_logic; -- DIRECTION OF CHANGING OF STACK POINTER SPH:SPL 0->UP(+) 1->DOWN(-)
164 
                               sp_en           : out std_logic; -- WRITE ENABLE(COUNT ENABLE) FOR SPH AND SPL REGISTERS
165 
 
166 
                               rampz_out       : in  std_logic_vector(7 downto 0);
167 
 
168 
                                                           -- Bit processor interface
169 
                               bit_num_r_io    : out std_logic_vector(2 downto 0); -- BIT NUMBER FOR CBI/SBI/BLD/BST/SBRS/SBRC/SBIC/SBIS INSTRUCTIONS
170 
                               bitpr_io_out    : in  std_logic_vector(7 downto 0); -- SBI/CBI OUT
171 
                               branch          : out std_logic_vector(2 downto 0); -- NUMBER (0..7) OF BRANCH CONDITION FOR BRBS/BRBC INSTRUCTION
172 
                               bit_pr_sreg_out : in  std_logic_vector(7 downto 0); -- BCLR/BSET/BST(T-FLAG ONLY)
173 
                               bld_op_out      : in  std_logic_vector(7 downto 0); -- BLD OUT (T FLAG)
174 
                               bit_test_op_out : in  std_logic;                    -- OUTPUT OF SBIC/SBIS/SBRS/SBRC
175 
 
176 
                               sbi_st_out      : out std_logic;
177 
                               cbi_st_out      : out std_logic;
178 
 
179 
                               idc_bst_out     : out std_logic;
180 
                               idc_bset_out    : out std_logic;
181 
                               idc_bclr_out    : out std_logic;
182 
 
183 
                               idc_sbic_out    : out std_logic;
184 
                               idc_sbis_out    : out std_logic;
185 
 
186 
                               idc_sbrs_out    : out std_logic;
187 
                               idc_sbrc_out    : out std_logic;
188 
 
189 
                               idc_brbs_out    : out std_logic;
190 
                               idc_brbc_out    : out std_logic;
191 
 
192 
                               idc_reti_out    : out std_logic);
193 
 
194 
end component;
195 
 
196 
 
197 
component alu_avr is port(
198 
 
199 
              alu_data_r_in   : in std_logic_vector(7 downto 0);
200 
              alu_data_d_in   : in std_logic_vector(7 downto 0);
201 
 
202 
              alu_c_flag_in   : in std_logic;
203 
              alu_z_flag_in   : in std_logic;
204 
 
205 
 
206 
-- OPERATION SIGNALS INPUTS
207 
              idc_add         :in std_logic;
208 
              idc_adc         :in std_logic;
209 
              idc_adiw        :in std_logic;
210 
              idc_sub         :in std_logic;
211 
              idc_subi        :in std_logic;
212 
              idc_sbc         :in std_logic;
213 
              idc_sbci        :in std_logic;
214 
              idc_sbiw        :in std_logic;
215 
 
216 
              adiw_st         : in std_logic;
217 
              sbiw_st         : in std_logic;
218 
 
219 
              idc_and         :in std_logic;
220 
              idc_andi        :in std_logic;
221 
              idc_or          :in std_logic;
222 
              idc_ori         :in std_logic;
223 
              idc_eor         :in std_logic;
224 
              idc_com         :in std_logic;
225 
              idc_neg         :in std_logic;
226 
 
227 
              idc_inc         :in std_logic;
228 
              idc_dec         :in std_logic;
229 
 
230 
              idc_cp          :in std_logic;
231 
              idc_cpc         :in std_logic;
232 
              idc_cpi         :in std_logic;
233 
              idc_cpse        :in std_logic;
234 
 
235 
              idc_lsr         :in std_logic;
236 
              idc_ror         :in std_logic;
237 
              idc_asr         :in std_logic;
238 
              idc_swap        :in std_logic;
239 
 
240 
 
241 
-- DATA OUTPUT
242 
              alu_data_out    : out std_logic_vector(7 downto 0);
243 
 
244 
-- FLAGS OUTPUT
245 
              alu_c_flag_out  : out std_logic;
246 
              alu_z_flag_out  : out std_logic;
247 
              alu_n_flag_out  : out std_logic;
248 
              alu_v_flag_out  : out std_logic;
249 
              alu_s_flag_out  : out std_logic;
250 
              alu_h_flag_out  : out std_logic
251 
);
252 
 
253 
end component;
254 
 
255 
 
256 
component reg_file is port (
257 
                                                        --Clock and reset
258 
                                                cp2         : in  std_logic;
259 
                                                        cp2en       : in  std_logic;
260 
                            ireset      : in  std_logic;
261 
 
262 
                            reg_rd_in   : in std_logic_vector  (7 downto 0);
263 
                            reg_rd_out  : out std_logic_vector (7 downto 0);
264 
                            reg_rd_out_int  : out std_logic_vector(7 downto 0);
265 
                            reg_rd_adr  : in std_logic_vector  (4 downto 0);
266 
                            reg_rd_adr_int      : in std_logic_vector  (4 downto 0);
267 
                            reg_rr_out  : out std_logic_vector (7 downto 0);
268 
                            reg_rr_adr  : in std_logic_vector  (4 downto 0);
269 
                            reg_rd_wr   : in std_logic;
270 
 
271 
                            post_inc    : in std_logic;                       -- POST INCREMENT FOR LD/ST INSTRUCTIONS
272 
                            pre_dec     : in std_logic;                        -- PRE DECREMENT FOR LD/ST INSTRUCTIONS
273 
                            reg_h_wr    : in std_logic;
274 
                            reg_h_out   : out std_logic_vector (15 downto 0);
275 
                            reg_h_adr   : in std_logic_vector (2 downto 0);    -- x,y,z
276 
                                    reg_z_out   : out std_logic_vector (15 downto 0)  -- OUTPUT OF R31:R30 FOR LPM/ELPM/IJMP INSTRUCTIONS
277 
                            );
278 
end component;
279 
 
280 
component io_reg_file is port (
281 
                                       --Clock and reset
282 
                                   cp2           : in  std_logic;
283 
                                                           cp2en         : in  std_logic;
284 
                               ireset        : in  std_logic;
285 
 
286 
                               adr           : in  std_logic_vector(5 downto 0);
287 
                               iowe          : in  std_logic;
288 
                               dbusout       : in  std_logic_vector(7 downto 0);
289 
 
290 
                               sreg_fl_in    : in  std_logic_vector(7 downto 0);
291 
                               sreg_out      : out std_logic_vector(7 downto 0);
292 
 
293 
                               sreg_fl_wr_en : in std_logic_vector (7 downto 0);   --FLAGS WRITE ENABLE SIGNALS
294 
 
295 
                               spl_out       : out std_logic_vector(7 downto 0);
296 
                               sph_out       : out std_logic_vector(7 downto 0);
297 
                               sp_ndown_up   : in  std_logic; -- DIRECTION OF CHANGING OF STACK POINTER SPH:SPL 0->UP(+) 1->DOWN(-)
298 
                               sp_en         : in  std_logic; -- WRITE ENABLE(COUNT ENABLE) FOR SPH AND SPL REGISTERS
299 
 
300 
                               rampz_out     : out std_logic_vector(7 downto 0));
301 
end component;
302 
 
303 
 
304 
component bit_processor is port(
305 
                                                          --Clock and reset
306 
                              cp2             : in  std_logic;
307 
                                                          cp2en           : in  std_logic;
308 
                              ireset          : in  std_logic;
309 
 
310 
                              bit_num_r_io    : in  std_logic_vector(2 downto 0); -- BIT NUMBER FOR CBI/SBI/BLD/BST/SBRS/SBRC/SBIC/SBIS INSTRUCTIONS
311 
                              dbusin          : in  std_logic_vector(7 downto 0); -- SBI/CBI/SBIS/SBIC  IN
312 
                              bitpr_io_out    : out std_logic_vector(7 downto 0); -- SBI/CBI OUT
313 
                              sreg_out        : in  std_logic_vector(7 downto 0); -- BRBS/BRBC/BLD IN
314 
                              branch          : in  std_logic_vector(2 downto 0); -- NUMBER (0..7) OF BRANCH CONDITION FOR BRBS/BRBC INSTRUCTION
315 
                              bit_pr_sreg_out : out std_logic_vector(7 downto 0); -- BCLR/BSET/BST(T-FLAG ONLY)
316 
                              bld_op_out      : out std_logic_vector(7 downto 0); -- BLD OUT (T FLAG)
317 
                              reg_rd_out      : in  std_logic_vector(7 downto 0); -- BST/SBRS/SBRC IN
318 
                              bit_test_op_out : out std_logic;                    -- OUTPUT OF SBIC/SBIS/SBRS/SBRC/BRBC/BRBS
319 
                              -- Instructions and states
320 
                              sbi_st          : in  std_logic;
321 
                              cbi_st          : in  std_logic;
322 
                              idc_bst         : in  std_logic;
323 
                              idc_bset        : in  std_logic;
324 
                              idc_bclr        : in  std_logic;
325 
                              idc_sbic        : in  std_logic;
326 
                              idc_sbis        : in  std_logic;
327 
                              idc_sbrs        : in  std_logic;
328 
                              idc_sbrc        : in  std_logic;
329 
                              idc_brbs        : in  std_logic;
330 
                              idc_brbc        : in  std_logic;
331 
                              idc_reti        : in  std_logic
332 
                                                          );
333 
 
334 
end component;
335 
 
336 
component io_adr_dec is port (
337 
          adr          : in std_logic_vector(5 downto 0);
338 
          iore         : in std_logic;
339 
          dbusin_ext   : in std_logic_vector(7 downto 0);
340 
          dbusin_int   : out std_logic_vector(7 downto 0);
341 
 
342 
          spl_out      : in std_logic_vector(7 downto 0);
343 
          sph_out      : in std_logic_vector(7 downto 0);
344 
          sreg_out     : in std_logic_vector(7 downto 0);
345 
          rampz_out    : in std_logic_vector(7 downto 0));
346 
end component;
347 
 
348 
signal dbusin_int  : std_logic_vector(7 downto 0);
349 
signal dbusout_int : std_logic_vector(7 downto 0);
350 
 
351 
signal adr_int     : std_logic_vector(5 downto 0);
352 
 
353 
signal iowe_int    : std_logic;
354 
signal iore_int    : std_logic;
355 
 
356 
-- SIGNALS FOR INSTRUCTION AND STATES
357 
signal idc_add  : std_logic;
358 
signal idc_adc  : std_logic;
359 
signal idc_adiw : std_logic;
360 
signal idc_sub  : std_logic;
361 
signal idc_subi : std_logic;
362 
signal idc_sbc  : std_logic;
363 
signal idc_sbci : std_logic;
364 
signal idc_sbiw : std_logic;
365 
signal adiw_st  : std_logic;
366 
signal sbiw_st  : std_logic;
367 
signal idc_and  : std_logic;
368 
signal idc_andi : std_logic;
369 
signal idc_or   : std_logic;
370 
signal idc_ori  : std_logic;
371 
signal idc_eor  : std_logic;
372 
signal idc_com  : std_logic;
373 
signal idc_neg  : std_logic;
374 
signal idc_inc  : std_logic;
375 
signal idc_dec  : std_logic;
376 
signal idc_cp   : std_logic;
377 
signal idc_cpc  : std_logic;
378 
signal idc_cpi  : std_logic;
379 
signal idc_cpse : std_logic;
380 
signal idc_lsr  : std_logic;
381 
signal idc_ror  : std_logic;
382 
signal idc_asr  : std_logic;
383 
signal idc_swap : std_logic;
384 
signal sbi_st   : std_logic;
385 
signal cbi_st   : std_logic;
386 
signal idc_bst  : std_logic;
387 
signal idc_bset : std_logic;
388 
signal idc_bclr : std_logic;
389 
signal idc_sbic : std_logic;
390 
signal idc_sbis : std_logic;
391 
signal idc_sbrs : std_logic;
392 
signal idc_sbrc : std_logic;
393 
signal idc_brbs : std_logic;
394 
signal idc_brbc : std_logic;
395 
signal idc_reti : std_logic;
396 
 
397 
signal alu_data_r_in : std_logic_vector(7 downto 0);
398 
signal alu_data_out  : std_logic_vector(7 downto 0);
399 
 
400 
signal reg_rd_in     : std_logic_vector(7 downto 0);
401 
signal reg_rd_out    : std_logic_vector(7 downto 0);
402 
signal reg_rd_out_int : std_logic_vector(7 downto 0);
403 
signal reg_rr_out    : std_logic_vector(7 downto 0);
404 
 
405 
signal reg_rd_adr    : std_logic_vector(4 downto 0);
406 
signal reg_rd_adr_int    : std_logic_vector(4 downto 0);
407 
signal reg_rr_adr    : std_logic_vector(4 downto 0);
408 
 
409 
signal reg_h_out     : std_logic_vector(15 downto 0);
410 
signal reg_z_out     : std_logic_vector(15 downto 0);
411 
 
412 
signal reg_h_adr     : std_logic_vector(2 downto 0);
413 
 
414 
signal reg_rd_wr     : std_logic;
415 
signal post_inc      : std_logic;
416 
signal pre_dec       : std_logic;
417 
signal reg_h_wr      : std_logic;
418 
 
419 
signal sreg_fl_in    : std_logic_vector(7 downto 0);
420 
signal sreg_out      : std_logic_vector(7 downto 0);
421 
 
422 
signal sreg_out_0      : std_logic;
423 
signal sreg_out_1      : std_logic;
424 
signal sreg_out_7      : std_logic;
425 
 
426 
signal sreg_fl_wr_en : std_logic_vector(7 downto 0);
427 
signal spl_out       : std_logic_vector(7 downto 0);
428 
signal sph_out       : std_logic_vector(7 downto 0);
429 
signal rampz_out     : std_logic_vector(7 downto 0);
430 
 
431 
signal sp_ndown_up   : std_logic;
432 
signal sp_en         : std_logic;
433 
 
434 
signal bit_num_r_io  : std_logic_vector(2 downto 0);
435 
signal branch        : std_logic_vector(2 downto 0);
436 
 
437 
signal bitpr_io_out    : std_logic_vector(7 downto 0);
438 
signal bit_pr_sreg_out : std_logic_vector(7 downto 0);
439 
signal sreg_flags      : std_logic_vector(7 downto 0);
440 
signal bld_op_out      : std_logic_vector(7 downto 0);
441 
signal reg_file_rd_in  : std_logic_vector(7 downto 0);
442 
 
443 
signal bit_test_op_out : std_logic;
444 
 
445 
signal alu_c_flag_out  : std_logic;
446 
signal alu_z_flag_out  : std_logic;
447 
signal alu_n_flag_out  : std_logic;
448 
signal alu_v_flag_out  : std_logic;
449 
signal alu_s_flag_out  : std_logic;
450 
signal alu_h_flag_out  : std_logic;
451 
 
452 
begin
453 
 
454 
pm_fetch_dec_Inst:component pm_fetch_dec port map (
455 
                                      -- Clock and reset
456 
                                      cp2      => cp2,
457 
                                                                          cp2en    => cp2en,
458 
                                      ireset   => ireset,
459 
                                                                          -- JTAG OCD support
460 
                                                                  valid_instr => valid_instr,
461 
                                                              insert_nop  => insert_nop,
462 
                                                              block_irq   => block_irq,
463 
                                                              change_flow => change_flow,
464 
                                      -- Program memory
465 
                                      pc       => pc,
466 
                                      inst     => inst,
467 
                                      -- I/O control
468 
                                      adr      => adr_int,
469 
                                      iore     => iore_int,
470 
                                      iowe     => iowe_int,
471 
                                      -- Data memory control
472 
                                      ramadr   => ramadr,
473 
                                      ramre    => ramre,
474 
                                      ramwe    => ramwe,
475 
                                      cpuwait  => cpuwait,
476 
                                      -- Data paths
477 
                                      dbusin   => dbusin_int,
478 
                                      dbusout  => dbusout,
479 
                                          dbusout_int_route => dbusout_int,
480 
                                      -- Interrupt
481 
                                      irqlines => irqlines,
482 
                                      irqack   => irqack,
483 
                                      irqackad => irqackad,
484 
                                      --Sleep
485 
                                      sleepi     => sleepi,
486 
                                      irqok      => irqok,
487 
                                      --Watchdog
488 
                                      wdri       => wdri,
489 
                                                                         -- ALU interface(Data inputs)
490 
                                     alu_data_r_in   => alu_data_r_in,
491 
                                                                         -- ALU interface(Instruction inputs)
492 
                                     idc_add_out  => idc_add,
493 
                                     idc_adc_out  => idc_adc,
494 
                                     idc_adiw_out => idc_adiw,
495 
                                     idc_sub_out  => idc_sub,
496 
                                     idc_subi_out => idc_subi,
497 
                                     idc_sbc_out  => idc_sbc,
498 
                                     idc_sbci_out => idc_sbci,
499 
                                     idc_sbiw_out => idc_sbiw,
500 
 
501 
                                     adiw_st_out  => adiw_st,
502 
                                     sbiw_st_out  => sbiw_st,
503 
 
504 
                                     idc_and_out  => idc_and,
505 
                                     idc_andi_out => idc_andi,
506 
                                     idc_or_out   => idc_or,
507 
                                     idc_ori_out  => idc_ori,
508 
                                     idc_eor_out  => idc_eor,
509 
                                     idc_com_out  => idc_com,
510 
                                     idc_neg_out  => idc_neg,
511 
 
512 
                                     idc_inc_out  => idc_inc,
513 
                                     idc_dec_out  => idc_dec,
514 
 
515 
                                     idc_cp_out   => idc_cp,
516 
                                     idc_cpc_out  => idc_cpc,
517 
                                     idc_cpi_out  => idc_cpi,
518 
                                     idc_cpse_out => idc_cpse,
519 
 
520 
                                     idc_lsr_out  => idc_lsr,
521 
                                     idc_ror_out  => idc_ror,
522 
                                     idc_asr_out  => idc_asr,
523 
                                     idc_swap_out => idc_swap,
524 
                                     -- ALU interface(Data output)
525 
                                     alu_data_out => alu_data_out,
526 
                                     -- ALU interface(Flag outputs)
527 
                                     alu_c_flag_out => alu_c_flag_out,
528 
                                     alu_z_flag_out => alu_z_flag_out,
529 
                                     alu_n_flag_out => alu_n_flag_out,
530 
                                     alu_v_flag_out => alu_v_flag_out,
531 
                                     alu_s_flag_out => alu_s_flag_out,
532 
                                     alu_h_flag_out => alu_h_flag_out,
533 
                                     -- General purpose register file interface
534 
                                     reg_rd_in   => reg_rd_in,
535 
                                     reg_rd_out  => reg_rd_out,
536 
                                         reg_rd_out_int => reg_rd_out_int,
537 
                                     reg_rd_adr  => reg_rd_adr,
538 
                                     reg_rd_adr_int  => reg_rd_adr_int,
539 
                                     reg_rr_out  => reg_rr_out,
540 
                                     reg_rr_adr  => reg_rr_adr,
541 
                                     reg_rd_wr   => reg_rd_wr,
542 
 
543 
                                     post_inc    => post_inc,
544 
                                     pre_dec     => pre_dec,
545 
                                     reg_h_wr    => reg_h_wr,
546 
                                     reg_h_out   => reg_h_out,
547 
                                     reg_h_adr   => reg_h_adr,
548 
                                             reg_z_out   => reg_z_out,
549 
                                     -- I/O register file interface
550 
                                     sreg_fl_in    => sreg_fl_in, --??
551 
                                     globint       => sreg_out_7, -- SREG I flag
552 
 
553 
                                     sreg_fl_wr_en => sreg_fl_wr_en,
554 
 
555 
                                     spl_out       => spl_out,
556 
                                     sph_out       => sph_out,
557 
                                     sp_ndown_up   => sp_ndown_up,
558 
                                     sp_en         => sp_en,
559 
 
560 
                                     rampz_out     => rampz_out,
561 
                                     -- Bit processor interface
562 
                                     bit_num_r_io    => bit_num_r_io,
563 
                                     bitpr_io_out    => bitpr_io_out,
564 
                                     branch          => branch,
565 
                                                         bit_pr_sreg_out => bit_pr_sreg_out,
566 
                                                         bld_op_out      => bld_op_out,
567 
                                                         bit_test_op_out => bit_test_op_out,
568 
 
569 
                                     sbi_st_out   => sbi_st,
570 
                                     cbi_st_out   => cbi_st,
571 
 
572 
                                     idc_bst_out  => idc_bst,
573 
                                     idc_bset_out => idc_bset,
574 
                                     idc_bclr_out => idc_bclr,
575 
 
576 
                                     idc_sbic_out => idc_sbic,
577 
                                     idc_sbis_out => idc_sbis,
578 
 
579 
                                     idc_sbrs_out => idc_sbrs,
580 
                                     idc_sbrc_out => idc_sbrc,
581 
 
582 
                                     idc_brbs_out => idc_brbs,
583 
                                     idc_brbc_out => idc_brbc,
584 
 
585 
                                     idc_reti_out => idc_reti);
586 
 
587 
 
588 
GPRF_Inst:component reg_file port map (
589 
                                                   --Clock and reset
590 
                                                           cp2         => cp2,
591 
                                                                           cp2en       => cp2en,
592 
                                       ireset      => ireset,
593 
 
594 
                                       reg_rd_in   => reg_rd_in,
595 
                                       reg_rd_out  => reg_rd_out,
596 
                                           reg_rd_out_int => reg_rd_out_int,
597 
                                       reg_rd_adr  => reg_rd_adr,
598 
                                       reg_rd_adr_int  => reg_rd_adr_int,
599 
                                       reg_rr_out  => reg_rr_out,
600 
                                       reg_rr_adr  => reg_rr_adr,
601 
                                       reg_rd_wr   => reg_rd_wr,
602 
 
603 
                                       post_inc    => post_inc,
604 
                                       pre_dec     => pre_dec,
605 
                                       reg_h_wr    => reg_h_wr,
606 
                                       reg_h_out   => reg_h_out,
607 
                                       reg_h_adr   => reg_h_adr,
608 
                                               reg_z_out   => reg_z_out);
609 
 
610 
 
611 
BP_Inst:component bit_processor port map (
612 
                                                     --Clock and reset
613 
                                                             cp2         => cp2,
614 
                                                                                 cp2en    => cp2en,
615 
                                         ireset      => ireset,
616 
 
617 
                                         bit_num_r_io  => bit_num_r_io,
618 
                                         dbusin        => dbusin_int,
619 
                                         bitpr_io_out  => bitpr_io_out,
620 
 
621 
                                         sreg_out      => sreg_out,
622 
                                         branch   => branch,
623 
 
624 
                                         bit_pr_sreg_out => bit_pr_sreg_out,
625 
 
626 
                                         bld_op_out      => bld_op_out,
627 
                                         reg_rd_out      => reg_rd_out,
628 
 
629 
                                         bit_test_op_out => bit_test_op_out,
630 
 
631 
                                         -- Instructions and states
632 
                                         sbi_st   => sbi_st,
633 
                                         cbi_st   => cbi_st,
634 
 
635 
                                         idc_bst  => idc_bst,
636 
                                         idc_bset => idc_bset,
637 
                                         idc_bclr => idc_bclr,
638 
 
639 
                                         idc_sbic => idc_sbic,
640 
                                         idc_sbis => idc_sbis,
641 
 
642 
                                         idc_sbrs => idc_sbrs,
643 
                                         idc_sbrc => idc_sbrc,
644 
 
645 
                                         idc_brbs => idc_brbs,
646 
                                         idc_brbc => idc_brbc,
647 
 
648 
                                         idc_reti => idc_reti);
649 
 
650 
 
651 
io_dec_Inst:component io_adr_dec port map (
652 
          adr          => adr_int,
653 
          iore         => iore_int,
654 
          dbusin_int   => dbusin_int,                   -- LOCAL DATA BUS OUTPUT
655 
          dbusin_ext   => dbusin,               -- EXTERNAL DATA BUS INPUT
656 
 
657 
          spl_out      => spl_out,
658 
          sph_out      => sph_out,
659 
          sreg_out     => sreg_out,
660 
          rampz_out    => rampz_out
661 
);
662 
 
663 
IORegs_Inst: component io_reg_file port map (
664 
                                                        --Clock and reset
665 
                                                cp2        => cp2,
666 
                                                                                        cp2en    => cp2en,
667 
                                            ireset     => ireset,
668 
 
669 
                                                                                        adr        => adr_int,
670 
                                            iowe       => iowe_int,
671 
                                            dbusout    => dbusout_int,
672 
 
673 
                                            sreg_fl_in => sreg_fl_in,
674 
                                            sreg_out   => sreg_out,
675 
 
676 
                                            sreg_fl_wr_en => sreg_fl_wr_en,
677 
 
678 
                                            spl_out    => spl_out,
679 
                                            sph_out    => sph_out,
680 
                                            sp_ndown_up => sp_ndown_up,
681 
                                            sp_en      => sp_en,
682 
 
683 
                                            rampz_out  => rampz_out);
684 
 
685 
 
686 
 
687 
ALU_Inst:component alu_avr port map (
688 
                          -- Data inputs
689 
              alu_data_r_in => alu_data_r_in,
690 
              alu_data_d_in => reg_rd_out,
691 
 
692 
              alu_c_flag_in => sreg_out_0,
693 
              alu_z_flag_in => sreg_out_1,
694 
              -- Instructions and states
695 
              idc_add  => idc_add,
696 
              idc_adc  => idc_adc,
697 
              idc_adiw => idc_adiw,
698 
              idc_sub  => idc_sub,
699 
              idc_subi => idc_subi,
700 
              idc_sbc  => idc_sbc,
701 
              idc_sbci => idc_sbci,
702 
              idc_sbiw => idc_sbiw,
703 
 
704 
              adiw_st  => adiw_st,
705 
              sbiw_st  => sbiw_st,
706 
 
707 
              idc_and  => idc_and,
708 
              idc_andi => idc_andi,
709 
              idc_or   => idc_or,
710 
              idc_ori  => idc_ori,
711 
              idc_eor  => idc_eor,
712 
              idc_com  => idc_com,
713 
              idc_neg  => idc_neg,
714 
 
715 
              idc_inc  => idc_inc,
716 
              idc_dec  => idc_dec,
717 
 
718 
              idc_cp   => idc_cp,
719 
              idc_cpc  => idc_cpc,
720 
              idc_cpi  => idc_cpi,
721 
              idc_cpse => idc_cpse,
722 
 
723 
              idc_lsr  => idc_lsr,
724 
              idc_ror  => idc_ror,
725 
              idc_asr  => idc_asr,
726 
              idc_swap => idc_swap,
727 
              -- Data outputs
728 
              alu_data_out => alu_data_out,
729 
                          -- Flag outputs
730 
              alu_c_flag_out => alu_c_flag_out,
731 
              alu_z_flag_out => alu_z_flag_out,
732 
              alu_n_flag_out => alu_n_flag_out,
733 
              alu_v_flag_out => alu_v_flag_out,
734 
              alu_s_flag_out => alu_s_flag_out,
735 
              alu_h_flag_out => alu_h_flag_out);
736 
 
737 
 
738 
-- Outputs
739 
adr      <= adr_int;
740 
iowe     <= iowe_int;
741 
iore     <= iore_int;
742 
 
743 
-- Sleep support
744 
globint <= sreg_out(7); -- I flag
745 
sreg_out_0 <= sreg_out(0);
746 
sreg_out_1 <= sreg_out(1);
747 
sreg_out_7 <= sreg_out(7);
748 
 
749 
end Struct;

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.