Subversion Repositories versatile_mem_ctrl

`timescale 1ns/1ns

module versatile_mem_ctrl_tb

  (

   output OK

   );

   reg    sdram_clk, wb_clk, wb_rst;

   wire [31:0] wb0_dat_i;

   wire [3:0]  wb0_sel_i;

   wire [31:0] wb0_adr_i;

   wire [2:0]  wb0_cti_i;

   wire [1:0]  wb0_bte_i;

   wire        wb0_cyc_i;

   wire        wb0_stb_i;

   wire [31:0] wb0_dat_o;

   wire        wb0_ack_o;

   wire [31:0] wb1_dat_i;

   wire [3:0]  wb1_sel_i;

   wire [31:0] wb1_adr_i;

   wire [2:0]  wb1_cti_i;

   wire [1:0]  wb1_bte_i;

   wire        wb1_cyc_i;

   wire        wb1_stb_i;

   wire [31:0] wb1_dat_o;

   wire        wb1_ack_o;

   wire [31:0] wb4_dat_i;

   wire [3:0]  wb4_sel_i;

   wire [31:0] wb4_adr_i;

   wire [2:0]  wb4_cti_i;

   wire [1:0]  wb4_bte_i;

   wire        wb4_cyc_i;

   wire        wb4_stb_i;

   wire [31:0] wb4_dat_o;

   wire        wb4_ack_o;

   wire [1:0]  ba, bad;

   wire [12:0] a, ad;

   wire [15:0] dq_i;

   wire [15:0] dq_o;

   wire [15:0] dq_io;

   wire [1:0]  dqm, dqmd;

   wire        dq_oe;

   wire        cs_n, cs_nd, ras, rasd, cas, casd, we, wed, cke, cked;

   wb0 wb0i

     (

      .adr(wb0_adr_i),

      .bte(wb0_bte_i),

      .cti(wb0_cti_i),

      .cyc(wb0_cyc_i),

      .dat(wb0_dat_i),

      .sel(wb0_sel_i),

      .stb(wb0_stb_i),

      .we (wb0_we_i),

      .ack(wb0_ack_o),

      .clk(wb_clk),

      .dat_i(wb0_dat_o),

      .reset(wb_rst)

      );

   wb1 wb1i

     (

      .adr(wb1_adr_i),

      .bte(wb1_bte_i),

      .cti(wb1_cti_i),

      .cyc(wb1_cyc_i),

      .dat(wb1_dat_i),

      .sel(wb1_sel_i),

      .stb(wb1_stb_i),

      .we (wb1_we_i),

      .ack(wb1_ack_o),

      .clk(wb_clk),

      .dat_i(wb1_dat_o),

      .reset(wb_rst)

      );

   wb4 wb4i

     (

      .adr(wb4_adr_i),

      .bte(wb4_bte_i),

      .cti(wb4_cti_i),

      .cyc(wb4_cyc_i),

      .dat(wb4_dat_i),

      .sel(wb4_sel_i),

      .stb(wb4_stb_i),

      .we (wb4_we_i),

      .ack(wb4_ack_o),

      .clk(wb_clk),

      .dat_i(wb4_dat_o),

      .reset(wb_rst)

      );

   wb_sdram_ctrl_top dut

  (

   .wbs0_dat_i(wb0_dat_i),

   .wbs0_dat_o(wb0_dat_o),

   .wbs0_adr_i(wb0_adr_i[31:2]),

   .wbs0_sel_i(wb0_sel_i),

   .wbs0_cti_i(wb0_cti_i),

   .wbs0_bte_i(wb0_bte_i),

   .wbs0_we_i (wb0_we_i),

   .wbs0_cyc_i(wb0_cyc_i),

   .wbs0_stb_i(wb0_stb_i),

   .wbs0_ack_o(wb0_ack_o),

   .wbs1_dat_i(wb1_dat_i),

   .wbs1_dat_o(wb1_dat_o),

   .wbs1_adr_i(wb1_adr_i[31:2]),

   .wbs1_sel_i(wb1_sel_i),

   .wbs1_cti_i(wb1_cti_i),

   .wbs1_bte_i(wb1_bte_i),

   .wbs1_we_i (wb1_we_i),

   .wbs1_cyc_i(wb1_cyc_i),

   .wbs1_stb_i(wb1_stb_i),

   .wbs1_ack_o(wb1_ack_o),

   .wbs4_dat_i(wb4_dat_i),

   .wbs4_dat_o(wb4_dat_o),

   .wbs4_adr_i(wb4_adr_i[31:2]),

   .wbs4_sel_i(wb4_sel_i),

   .wbs4_cti_i(wb4_cti_i),

   .wbs4_bte_i(wb4_bte_i),

   .wbs4_we_i (wb4_we_i),

   .wbs4_cyc_i(wb4_cyc_i),

   .wbs4_stb_i(wb4_stb_i),

   .wbs4_ack_o(wb4_ack_o),

   // SDR SDRAM 16

   .ba_pad_o(ba),

   .a_pad_o(a),

   .cs_n_pad_o(cs_n),

   .ras_pad_o(ras),

   .cas_pad_o(cas),

   .we_pad_o(we),

   .dq_o(dq_o),

   .dqm_pad_o(dqm),

   .dq_i(dq_i),

   .dq_oe(dq_oe),

   .cke_pad_o(cke),

   // misc     

   .wb_clk(wb_clk),

   .wb_rst(wb_rst),

   .sdram_clk(sdram_clk)

   );

   assign #1 dq_io = dq_oe ? dq_o : {16{1'bz}};

   assign #1 dq_i  = dq_io;

   assign #1 dqmd = dqm;

   assign #1 ad = a;

   assign #1 bad = ba;

   assign #1 cked = cke;

   assign #1 cs_nd = cs_n;

   assign #1 rasd = ras;

   assign #1 casd = cas;

   assign #1 wed = we;

mt48lc16m16a2 sdram

  (

   .Dq(dq_io),

   .Addr(ad),

   .Ba(bad),

   .Clk(sdram_clk),

   .Cke(cked),

   .Cs_n(cs_nd),

   .Ras_n(rasd),

   .Cas_n(casd),

   .We_n(wed),

   .Dqm(dqmd)

   );

   initial

     begin

        #0 wb_rst = 1'b1;

        #200 wb_rst = 1'b1;

        #400 wb_rst = 1'b0;

     end

   initial

     begin

        #0 wb_clk = 1'b0;

        forever

          #20 wb_clk = !wb_clk;   // 25MHz

     end

   initial

     begin

        #0 sdram_clk = 1'b0;

        forever

          #4 sdram_clk = !sdram_clk;   // 125MHz

     end

endmodule // versatile_mem_ctrl_tb