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[/] [openrisc/] [trunk/] [or1200/] [rtl/] [verilog/] [or1200_dc_ram.v] - Blame information for rev 481

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//////////////////////////////////////////////////////////////////////
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////                                                              ////
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////  OR1200's DC RAMs                                            ////
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////                                                              ////
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////  This file is part of the OpenRISC 1200 project              ////
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////  http://opencores.org/project,or1k                           ////
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////                                                              ////
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////  Description                                                 ////
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////  Instatiation of DC RAM blocks.                              ////
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////                                                              ////
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////  To Do:                                                      ////
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////   - make it smaller and faster                               ////
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////                                                              ////
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////  Author(s):                                                  ////
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////      - Damjan Lampret, lampret@opencores.org                 ////
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////                                                              ////
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//////////////////////////////////////////////////////////////////////
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////                                                              ////
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//// Copyright (C) 2000 Authors and OPENCORES.ORG                 ////
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////                                                              ////
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//// This source file may be used and distributed without         ////
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//// restriction provided that this copyright statement is not    ////
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//// removed from the file and that any derivative work contains  ////
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//// the original copyright notice and the associated disclaimer. ////
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////                                                              ////
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//// This source file is free software; you can redistribute it   ////
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//// and/or modify it under the terms of the GNU Lesser General   ////
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//// Public License as published by the Free Software Foundation; ////
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//// either version 2.1 of the License, or (at your option) any   ////
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//// later version.                                               ////
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////                                                              ////
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//// This source is distributed in the hope that it will be       ////
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//// useful, but WITHOUT ANY WARRANTY; without even the implied   ////
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//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      ////
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//// PURPOSE.  See the GNU Lesser General Public License for more ////
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//// details.                                                     ////
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////                                                              ////
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//// You should have received a copy of the GNU Lesser General    ////
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//// Public License along with this source; if not, download it   ////
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//// from http://www.opencores.org/lgpl.shtml                     ////
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////                                                              ////
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//////////////////////////////////////////////////////////////////////
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//
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//
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// $Log: or1200_dc_ram.v,v $
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// Revision 2.0  2010/06/30 11:00:00  ORSoC
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// Minor update: 
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// Coding style changed.
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//
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// synopsys translate_off
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`include "timescale.v"
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// synopsys translate_on
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`include "or1200_defines.v"
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module or1200_dc_ram(
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        // Reset and clock
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        clk, rst,
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`ifdef OR1200_BIST
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        // RAM BIST
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        mbist_si_i, mbist_so_o, mbist_ctrl_i,
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`endif
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        // Internal i/f
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        addr, en, we, datain, dataout
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);
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parameter dw = `OR1200_OPERAND_WIDTH;
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parameter aw = `OR1200_DCINDX;
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//
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// I/O
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//
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input                           clk;
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input                           rst;
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input   [aw-1:0]         addr;
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input                           en;
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input   [3:0]                    we;
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input   [dw-1:0]         datain;
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output  [dw-1:0]         dataout;
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`ifdef OR1200_BIST
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//
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// RAM BIST
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//
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input                           mbist_si_i;
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input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;       // bist chain shift control
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output                          mbist_so_o;
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`endif
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`ifdef OR1200_NO_DC
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//
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// Data cache not implemented
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//
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assign dataout = {dw{1'b0}};
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`ifdef OR1200_BIST
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assign mbist_so_o = mbist_si_i;
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`endif
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`else
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//
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// Instantiation of RAM block
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//
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   or1200_spram_32_bw #
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     (
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      .aw(`OR1200_DCINDX),
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      .dw(dw)
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      )
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   dc_ram
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     (
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`ifdef OR1200_BIST
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      // RAM BIST
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      .mbist_si_i(mbist_si_i),
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      .mbist_so_o(mbist_so_o),
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      .mbist_ctrl_i(mbist_ctrl_i),
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`endif
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      .clk(clk),
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      .ce(en),
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      .we(we),
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      .addr(addr),
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      .di(datain),
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      .doq(dataout)
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      );
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`endif
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endmodule // or1200_dc_ram

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