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[/] [aemb/] [trunk/] [rtl/] [verilog/] [aeMB2_dparam.v] - Rev 195
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/* $Id: aeMB2_dparam.v,v 1.1 2008-04-26 17:57:43 sybreon Exp $ ** ** AEMB2 EDK 6.2 COMPATIBLE CORE ** Copyright (C) 2004-2008 Shawn Tan <shawn.tan@aeste.net> ** ** This file is part of AEMB. ** ** AEMB 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 3 of the ** License, or (at your option) any later version. ** ** AEMB 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 AEMB. If not, see <http:**www.gnu.org/licenses/>. */ /** * @file aeMB2_dparam.v * @brief On-chip dual-port asynchronous SRAM. * This will be implemented as distributed RAM with one read/write port and one read-only port. */ // 32x64 = 77 // 64x32 = 146 module aeMB2_dparam (/*AUTOARG*/ // Outputs dat_o, xdat_o, // Inputs adr_i, dat_i, wre_i, xadr_i, xdat_i, xwre_i, clk_i, ena_i ) ; parameter AW = 5; // 32 parameter DW = 2; // x2 // PORT A - READ/WRITE output [DW-1:0] dat_o; input [AW-1:0] adr_i; input [DW-1:0] dat_i; input wre_i; // PORT X - READ ONLY output [DW-1:0] xdat_o; input [AW-1:0] xadr_i; input [DW-1:0] xdat_i; input xwre_i; // SYSCON input clk_i, ena_i; /*AUTOREG*/ reg [DW-1:0] rRAM [(1<<AW)-1:0]; always @(posedge clk_i) if (wre_i) rRAM[adr_i] <= #1 dat_i; assign dat_o = rRAM[adr_i]; assign xdat_o = rRAM[xadr_i]; // --- SIMULATION ONLY ------------------------------------ // synopsys translate_off integer i; initial begin for (i=0; i<(1<<AW); i=i+1) begin rRAM[i] <= {(DW){1'b0}}; end end // synopsys translate_on endmodule // aeMB2_dparam /* $Log: not supported by cvs2svn $ Revision 1.1 2008/04/20 16:33:39 sybreon Initial import. */
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