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[/] [or1k/] [tags/] [rel_26/] [or1200/] [rtl/] [verilog/] [or1200_dc_ram.v] - Diff between revs 504 and 1063

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Rev 504 Rev 1063
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//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
////                                                              ////
////                                                              ////
////  OR1200's DC RAMs                                            ////
////  OR1200's DC RAMs                                            ////
////                                                              ////
////                                                              ////
////  This file is part of the OpenRISC 1200 project              ////
////  This file is part of the OpenRISC 1200 project              ////
Line 42... Line 43...
//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
//
//
// CVS Revision History
// CVS Revision History
//
//
// $Log: not supported by cvs2svn $
// $Log: not supported by cvs2svn $
 
// 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
// 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.
// 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
// Revision 1.7  2001/10/14 13:12:09  lampret
// MP3 version.
// MP3 version.
Line 68... Line 72...
 
 
module or1200_dc_ram(
module or1200_dc_ram(
        // Reset and clock
        // Reset and clock
        clk, rst,
        clk, rst,
 
 
 
`ifdef OR1200_BIST
 
        // RAM BIST
 
        scanb_rst, scanb_si, scanb_so, scanb_en, scanb_clk,
 
`endif
 
 
        // Internal i/f
        // Internal i/f
        addr, en, we, datain, dataout
        addr, en, we, datain, dataout
);
);
 
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter dw = `OR1200_OPERAND_WIDTH;
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input                           en;
input                           en;
input   [3:0]                    we;
input   [3:0]                    we;
input   [dw-1:0]         datain;
input   [dw-1:0]         datain;
output  [dw-1:0]         dataout;
output  [dw-1:0]         dataout;
 
 
 
`ifdef OR1200_BIST
 
//
 
// RAM BIST
 
//
 
input                           scanb_rst,
 
                                scanb_si,
 
                                scanb_en,
 
                                scanb_clk;
 
output                          scanb_so;
 
`endif
 
 
`ifdef OR1200_NO_DC
`ifdef OR1200_NO_DC
 
 
//
//
// Data cache not implemented
// Data cache not implemented
//
//
 
 
assign dataout = {dw{1'b0}};
assign dataout = {dw{1'b0}};
 
`ifdef OR1200_BIST
 
assign scanb_so = scanb_si;
 
`endif
 
 
`else
`else
 
 
 
`ifdef OR1200_BIST
 
//
 
// RAM BIST
 
//
 
wire                            scanb_ram0_so;
 
wire                            scanb_ram1_so;
 
wire                            scanb_ram2_so;
 
wire                            scanb_ram3_so;
 
wire                            scanb_ram0_si = scanb_si;
 
wire                            scanb_ram1_si = scanb_ram0_so;
 
wire                            scanb_ram2_si = scanb_ram1_so;
 
wire                            scanb_ram3_si = scanb_ram2_so;
 
assign                          scanb_so = scanb_ram3_so;
 
`endif
 
 
//
//
// Instantiation of RAM block 0
// Instantiation of RAM block 0
//
//
`ifdef OR1200_DC_1W_4KB
`ifdef OR1200_DC_1W_4KB
or1200_spram_1024x8 dc_ram0(
or1200_spram_1024x8 dc_ram0(
`endif
`endif
`ifdef OR1200_DC_1W_8KB
`ifdef OR1200_DC_1W_8KB
or1200_spram_2048x8 dc_ram0(
or1200_spram_2048x8 dc_ram0(
`endif
`endif
 
`ifdef OR1200_BIST
 
        // RAM BIST
 
        .scanb_rst(scanb_rst),
 
        .scanb_si(scanb_ram0_si),
 
        .scanb_so(scanb_ram0_so),
 
        .scanb_en(scanb_en),
 
        .scanb_clk(scanb_clk),
 
`endif
        .clk(clk),
        .clk(clk),
        .rst(rst),
        .rst(rst),
        .ce(en),
        .ce(en),
        .we(we[0]),
        .we(we[0]),
        .oe(1'b1),
        .oe(1'b1),
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or1200_spram_1024x8 dc_ram1(
or1200_spram_1024x8 dc_ram1(
`endif
`endif
`ifdef OR1200_DC_1W_8KB
`ifdef OR1200_DC_1W_8KB
or1200_spram_2048x8 dc_ram1(
or1200_spram_2048x8 dc_ram1(
`endif
`endif
 
`ifdef OR1200_BIST
 
        // RAM BIST
 
        .scanb_rst(scanb_rst),
 
        .scanb_si(scanb_ram1_si),
 
        .scanb_so(scanb_ram1_so),
 
        .scanb_en(scanb_en),
 
        .scanb_clk(scanb_clk),
 
`endif
        .clk(clk),
        .clk(clk),
        .rst(rst),
        .rst(rst),
        .ce(en),
        .ce(en),
        .we(we[1]),
        .we(we[1]),
        .oe(1'b1),
        .oe(1'b1),
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or1200_spram_1024x8 dc_ram2(
or1200_spram_1024x8 dc_ram2(
`endif
`endif
`ifdef OR1200_DC_1W_8KB
`ifdef OR1200_DC_1W_8KB
or1200_spram_2048x8 dc_ram2(
or1200_spram_2048x8 dc_ram2(
`endif
`endif
 
`ifdef OR1200_BIST
 
        // RAM BIST
 
        .scanb_rst(scanb_rst),
 
        .scanb_si(scanb_ram2_si),
 
        .scanb_so(scanb_ram2_so),
 
        .scanb_en(scanb_en),
 
        .scanb_clk(scanb_clk),
 
`endif
        .clk(clk),
        .clk(clk),
        .rst(rst),
        .rst(rst),
        .ce(en),
        .ce(en),
        .we(we[2]),
        .we(we[2]),
        .oe(1'b1),
        .oe(1'b1),
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or1200_spram_1024x8 dc_ram3(
or1200_spram_1024x8 dc_ram3(
`endif
`endif
`ifdef OR1200_DC_1W_8KB
`ifdef OR1200_DC_1W_8KB
or1200_spram_2048x8 dc_ram3(
or1200_spram_2048x8 dc_ram3(
`endif
`endif
 
`ifdef OR1200_BIST
 
        // RAM BIST
 
        .scanb_rst(scanb_rst),
 
        .scanb_si(scanb_ram3_si),
 
        .scanb_so(scanb_ram3_so),
 
        .scanb_en(scanb_en),
 
        .scanb_clk(scanb_clk),
 
`endif
        .clk(clk),
        .clk(clk),
        .rst(rst),
        .rst(rst),
        .ce(en),
        .ce(en),
        .we(we[3]),
        .we(we[3]),
        .oe(1'b1),
        .oe(1'b1),

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