URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
Subversion Repositories openrisc
[/] [openrisc/] [trunk/] [or1200/] [rtl/] [verilog/] [or1200_ic_tag.v] - Rev 64
Go to most recent revision | Compare with Previous | Blame | View Log
////////////////////////////////////////////////////////////////////// //// //// //// 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 1.6 2004/04/08 11:00:46 simont // Add support for 512B instruction cache. // // Revision 1.5 2004/04/05 08:29:57 lampret // Merged branch_qmem into main tree. // // Revision 1.3.4.1 2003/12/09 11:46:48 simons // Mbist nameing changed, Artisan ram instance signal names fixed, some synthesis waning fixed. // // 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_512B or1200_spram_32x24 ic_tag0( `endif `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), .doq({tag, tag_v}) ); `endif endmodule
Go to most recent revision | Compare with Previous | Blame | View Log