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[/] [or1k/] [tags/] [rel_26/] [or1200/] [rtl/] [verilog/] [or1200_ic_tag.v] - Blame information for rev 1765

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//////////////////////////////////////////////////////////////////////
////                                                              ////
////  OR1200's IC TAGs                                            ////
////                                                              ////
////  This file is part of the OpenRISC 1200 project              ////
////  http://www.opencores.org/cores/or1k/                        ////
////                                                              ////
////  Description                                                 ////
////  Instatiation of instruction cache tag rams                  ////
////                                                              ////
////  To Do:                                                      ////
////   - make it smaller and faster                               ////
////                                                              ////
////  Author(s):                                                  ////
////      - Damjan Lampret, lampret@opencores.org                 ////
////                                                              ////
//////////////////////////////////////////////////////////////////////
////                                                              ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG                 ////
////                                                              ////
//// This source file may be used and distributed without         ////
//// restriction provided that this copyright statement is not    ////
//// removed from the file and that any derivative work contains  ////
//// the original copyright notice and the associated disclaimer. ////
////                                                              ////
//// This source file is free software; you can redistribute it   ////
//// and/or modify it under the terms of the GNU Lesser General   ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any   ////
//// later version.                                               ////
////                                                              ////
//// This source is distributed in the hope that it will be       ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied   ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      ////
//// PURPOSE.  See the GNU Lesser General Public License for more ////
//// details.                                                     ////
////                                                              ////
//// You should have received a copy of the GNU Lesser General    ////
//// Public License along with this source; if not, download it   ////
//// from http://www.opencores.org/lgpl.shtml                     ////
////                                                              ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.3  2002/10/24 22:19:04  mohor
// Signal scanb_eni renamed to scanb_en
//
// Revision 1.2  2002/10/17 20:04:40  lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1  2002/01/03 08:16:15  lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.8  2001/10/21 17:57:16  lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7  2001/10/14 13:12:09  lampret
// MP3 version.
//
// Revision 1.1.1.1  2001/10/06 10:18:36  igorm
// no message
//
// Revision 1.2  2001/08/09 13:39:33  lampret
// Major clean-up.
//
// Revision 1.1  2001/07/20 00:46:03  lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_ic_tag(
        // Clock and reset
        clk, rst,
 
`ifdef OR1200_BIST
        // RAM BIST
        mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
 
        // Internal i/f
        addr, en, we, datain, tag_v, tag
);
 
parameter dw = `OR1200_ICTAG_W;
parameter aw = `OR1200_ICTAG;
 
//
// I/O
//
 
//
// Clock and reset
//
input                           clk;
input                           rst;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// Internal i/f
//
input   [aw-1:0]         addr;
input                           en;
input                           we;
input   [dw-1:0]         datain;
output                          tag_v;
output  [dw-2:0]         tag;
 
`ifdef OR1200_NO_IC
 
//
// Insn cache not implemented
//
assign tag = {dw-1{1'b0}};
assign tag_v = 1'b0;
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
 
`else
 
//
// Instantiation of TAG RAM block
//
`ifdef OR1200_IC_1W_4KB
or1200_spram_256x21 ic_tag0(
`endif
`ifdef OR1200_IC_1W_8KB
or1200_spram_512x20 ic_tag0(
`endif
`ifdef OR1200_BIST
        // RAM BIST
        .mbist_si_i(mbist_si_i),
        .mbist_so_o(mbist_so_o),
        .mbist_ctrl_i(mbist_ctrl_i),
`endif
        .clk(clk),
        .rst(rst),
        .ce(en),
        .we(we),
        .oe(1'b1),
        .addr(addr),
        .di(datain),
        .do({tag, tag_v})
);
 
`endif
 
endmodule

Line No.	Rev	Author	Line
1	504	lampret	`//////////////////////////////////////////////////////////////////////`
2			`//// ////`
3			`//// OR1200's IC TAGs ////`
4			`//// ////`
5			`//// This file is part of the OpenRISC 1200 project ////`
6			`//// http://www.opencores.org/cores/or1k/ ////`
7			`//// ////`
8			`//// Description ////`
9			`//// Instatiation of instruction cache tag rams ////`
10			`//// ////`
11			`//// To Do: ////`
12			`//// - make it smaller and faster ////`
13			`//// ////`
14			`//// Author(s): ////`
15			`//// - Damjan Lampret, lampret@opencores.org ////`
16			`//// ////`
17			`//////////////////////////////////////////////////////////////////////`
18			`//// ////`
19			`//// Copyright (C) 2000 Authors and OPENCORES.ORG ////`
20			`//// ////`
21			`//// This source file may be used and distributed without ////`
22			`//// restriction provided that this copyright statement is not ////`
23			`//// removed from the file and that any derivative work contains ////`
24			`//// the original copyright notice and the associated disclaimer. ////`
25			`//// ////`
26			`//// This source file is free software; you can redistribute it ////`
27			`//// and/or modify it under the terms of the GNU Lesser General ////`
28			`//// Public License as published by the Free Software Foundation; ////`
29			`//// either version 2.1 of the License, or (at your option) any ////`
30			`//// later version. ////`
31			`//// ////`
32			`//// This source is distributed in the hope that it will be ////`
33			`//// useful, but WITHOUT ANY WARRANTY; without even the implied ////`
34			`//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////`
35			`//// PURPOSE. See the GNU Lesser General Public License for more ////`
36			`//// details. ////`
37			`//// ////`
38			`//// You should have received a copy of the GNU Lesser General ////`
39			`//// Public License along with this source; if not, download it ////`
40			`//// from http://www.opencores.org/lgpl.shtml ////`
41			`//// ////`
42			`//////////////////////////////////////////////////////////////////////`
43			`//`
44			`// CVS Revision History`
45			`//`
46			`// $Log: not supported by cvs2svn $`
47	1214	simons	`// Revision 1.3 2002/10/24 22:19:04 mohor`
48			`// Signal scanb_eni renamed to scanb_en`
49			`//`
50	1069	mohor	`// Revision 1.2 2002/10/17 20:04:40 lampret`
51			`// Added BIST scan. Special VS RAMs need to be used to implement BIST.`
52			`//`
53	1063	lampret	`// Revision 1.1 2002/01/03 08:16:15 lampret`
54			`// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.`
55			`//`
56	504	lampret	`// Revision 1.8 2001/10/21 17:57:16 lampret`
57			`// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.`
58			`//`
59			`// Revision 1.7 2001/10/14 13:12:09 lampret`
60			`// MP3 version.`
61			`//`
62			`// Revision 1.1.1.1 2001/10/06 10:18:36 igorm`
63			`// no message`
64			`//`
65			`// Revision 1.2 2001/08/09 13:39:33 lampret`
66			`// Major clean-up.`
67			`//`
68			`// Revision 1.1 2001/07/20 00:46:03 lampret`
69			`// Development version of RTL. Libraries are missing.`
70			`//`
71			`//`
72
73			`// synopsys translate_off`
74			`include "timescale.v"
75			`// synopsys translate_on`
76			`include "or1200_defines.v"
77
78			`module or1200_ic_tag(`
79			`// Clock and reset`
80			`clk, rst,`
81
82	1063	lampret	`ifdef OR1200_BIST
83			`// RAM BIST`
84	1214	simons	`mbist_si_i, mbist_so_o, mbist_ctrl_i,`
85	1063	lampret	`endif
86
87	504	lampret	`// Internal i/f`
88			`addr, en, we, datain, tag_v, tag`
89			`);`
90
91			parameter dw = `OR1200_ICTAG_W;
92			parameter aw = `OR1200_ICTAG;
93
94			`//`
95			`// I/O`
96			`//`
97
98			`//`
99			`// Clock and reset`
100			`//`
101			`input clk;`
102			`input rst;`
103
104	1063	lampret	`ifdef OR1200_BIST
105	504	lampret	`//`
106	1063	lampret	`// RAM BIST`
107			`//`
108	1214	simons	`input mbist_si_i;`
109			input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
110			`output mbist_so_o;`
111	1063	lampret	`endif
112
113			`//`
114	504	lampret	`// Internal i/f`
115			`//`
116			`input [aw-1:0] addr;`
117			`input en;`
118			`input we;`
119			`input [dw-1:0] datain;`
120			`output tag_v;`
121			`output [dw-2:0] tag;`
122
123			`ifdef OR1200_NO_IC
124
125			`//`
126			`// Insn cache not implemented`
127			`//`
128			`assign tag = {dw-1{1'b0}};`
129			`assign tag_v = 1'b0;`
130	1063	lampret	`ifdef OR1200_BIST
131	1214	simons	`assign mbist_so_o = mbist_si_i;`
132	1063	lampret	`endif
133
134	504	lampret	`else
135
136			`//`
137			`// Instantiation of TAG RAM block`
138			`//`
139			`ifdef OR1200_IC_1W_4KB
140			`or1200_spram_256x21 ic_tag0(`
141			`endif
142			`ifdef OR1200_IC_1W_8KB
143			`or1200_spram_512x20 ic_tag0(`
144			`endif
145	1063	lampret	`ifdef OR1200_BIST
146			`// RAM BIST`
147	1214	simons	`.mbist_si_i(mbist_si_i),`
148			`.mbist_so_o(mbist_so_o),`
149			`.mbist_ctrl_i(mbist_ctrl_i),`
150	1063	lampret	`endif
151	504	lampret	`.clk(clk),`
152			`.rst(rst),`
153			`.ce(en),`
154			`.we(we),`
155			`.oe(1'b1),`
156			`.addr(addr),`
157			`.di(datain),`
158			`.do({tag, tag_v})`
159			`);`
160
161			`endif
162
163			`endmodule`

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[/] [or1k/] [tags/] [rel_26/] [or1200/] [rtl/] [verilog/] [or1200_ic_tag.v] - Blame information for rev 1765