bypass_bram.v

FPGA之间的LVDS传输

/******************************************************************************

File name:    initiator_bram.v
Rev:          4.1
Description:  This is the Initiator BRAM (IRAM) module of the
              User Design. It stores preloaded field information
              with different data patterns. This data is used to 
              populate the DATA field of outgoing Initiator Request 
              packets from the IREQ Generator module. The IRAM is 
              also used by the IRESP Handler to verify the DATA 
              field of incoming Initiator Response packets against 
              the expected contents.

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*******************************************************************************/
`timescale 1 ps / 1 ps

module bypass_bram (

  // System
  input           lnk_clk,      // Link clock
  input           lnk_reset_n,  // Active low reset

  // IREQ Generator
  input   [0:9]   g_iram_addra, // Address from IREQ Generator into IRAM
  output  [0:63]  iram_doa,     // Read data from IRAM to IREQ Generator

  // IRESP Handler
  input   [0:9]   h_iram_addrb, // Address from IRESP Handler into IRAM
  output  [0:63]  iram_dob      // Read data from IRAM to IRESP Handler
  );

  // Construct Initiator BRAM from two 1kx36 RAMB36 primitives cascaded in 
  // width resulting in a 1kx64 memory. The IRAM wil be put into WRITE_FIRST
  // mode to allow for a write path to be added from the Bypass Port. 
  //
  // The IRAM will be initialized with the following data patterns:
  //
  // Address Range  |   Data Type 
  // -------------------------------------------------------
  // 0x000 - 0x01F  |   All 0抯
  // 0x020 - 0x03F  |   All 1抯
  // 0x040 - 0x05F  |   Alternating 0抯 and 1抯
  // 0x060 - 0x07F  |   Alternating 1抯 and 0抯
  // 0x080 - 0x09F  |   Alternating bytes of 0抯 and 1抯
  // 0x0A0 - 0x0BF  |   Alternating bytes of 1抯 and 0抯
  // 0x0C0 - 0x0DF  |   Alternating dwords of 0抯 and 1抯
  // 0x0E0 - 0x0FF  |   Alternating dwords of 1抯 and 0抯
  // 0x100 - 0x11F  |   Incrementing bytes
  // 0x120 - 0x13F  |   Incrementing dwords
  // 0x140 - 0x15F  |   Decrementing bytes
  // 0x160 - 0x17F  |   Decrementing dwords
  // 0x180 - 0x19F  |   Random data #1
  // 0x1A0 - 0x1BF  |   Random data #2
  // 0x1C0 - 0x7FF  |   More incrementing dwords
  
  RAMB36 #(
    .READ_WIDTH_A(36),
    .READ_WIDTH_B(36),
    .WRITE_MODE_A("WRITE_FIRST"),
    .WRITE_MODE_B("WRITE_FIRST"),
    .WRITE_WIDTH_A(36),
    .WRITE_WIDTH_B(36),
    // The following INIT_xx declarations specify the initial contents of the RAM.
    // These INITs specify the lower 32 bits of the pattern. The INITs of the other
    // BRAM initialize the upper 32 bits of the pattern.
    // All 0's
    .INIT_00(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_01(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_02(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_03(256'h0000000000000000000000000000000000000000000000000000000000000000),
    // All 1's
    .INIT_04(256'hFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF),
    .INIT_05(256'hFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF),
    .INIT_06(256'hFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF),
    .INIT_07(256'hFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF),
    // Alternating 0's and 1's
    .INIT_08(256'h5555555555555555555555555555555555555555555555555555555555555555),
    .INIT_09(256'h5555555555555555555555555555555555555555555555555555555555555555),
    .INIT_0A(256'h5555555555555555555555555555555555555555555555555555555555555555),
    .INIT_0B(256'h5555555555555555555555555555555555555555555555555555555555555555),
    // Alternating 1's and 0's
    .INIT_0C(256'hAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA),
    .INIT_0D(256'hAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA),
    .INIT_0E(256'hAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA),
    .INIT_0F(256'hAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA),
    // Alternating bytes of 0's and 1's
    .INIT_10(256'h00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF),
    .INIT_11(256'h00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF),
    .INIT_12(256'h00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF),
    .INIT_13(256'h00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF),
    // Alternating bytes of 1's and 0's
    .INIT_14(256'hFF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00),
    .INIT_15(256'hFF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00),
    .INIT_16(256'hFF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00),
    .INIT_17(256'hFF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00),
    // Alternating dwords of 0's and 1's
    .INIT_18(256'h00000000FFFFFFFF00000000FFFFFFFF00000000FFFFFFFF00000000FFFFFFFF),
    .INIT_19(256'h00000000FFFFFFFF00000000FFFFFFFF00000000FFFFFFFF00000000FFFFFFFF),
    .INIT_1A(256'h00000000FFFFFFFF00000000FFFFFFFF00000000FFFFFFFF00000000FFFFFFFF),
    .INIT_1B(256'h00000000FFFFFFFF00000000FFFFFFFF00000000FFFFFFFF00000000FFFFFFFF),
    // Alternating dwords of 1's and 0's
    .INIT_1C(256'hFFFFFFFF00000000FFFFFFFF00000000FFFFFFFF00000000FFFFFFFF00000000),
    .INIT_1D(256'hFFFFFFFF00000000FFFFFFFF00000000FFFFFFFF00000000FFFFFFFF00000000),
    .INIT_1E(256'hFFFFFFFF00000000FFFFFFFF00000000FFFFFFFF00000000FFFFFFFF00000000),
    .INIT_1F(256'hFFFFFFFF00000000FFFFFFFF00000000FFFFFFFF00000000FFFFFFFF00000000),
    // Incrementing bytes
    .INIT_20(256'h0001020308090A0B1011121318191A1B2021222328292A2B3031323338393A3B),
    .INIT_21(256'h4041424348494A4B5051525358595A5B6061626368696A6B7071727378797A7B),
    .INIT_22(256'h8081828388898A8B9091929398999A9BA0A1A2A3A8A9AAABB0B1B2B3B8B9BABB),
    .INIT_23(256'hC0C1C2C3C8C9CACBD0D1D2D3D8D9DADBE0E1E2E3E8E9EAEBF0F1F2F3F8F9FAFB),
    // Incrementing dwords
    .INIT_24(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_25(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_26(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_27(256'h0000000000000000000000000000000000000000000000000000000000000000),
    // Decrementing bytes
    .INIT_28(256'hFFFEFDFCF7F6F5F4EFEEEDECE7E6E5E4DFDEDDDCD7D6D5D4CFCECDCCC7C6C5C4),
    .INIT_29(256'hBFBEBDBCB7B6B5B4AFAEADACA7A6A5A49F9E9D9C979695948F8E8D8C87868584),
    .INIT_2A(256'h7F7E7D7C777675746F6E6D6C676665645F5E5D5C575655544F4E4D4C47464544),
    .INIT_2B(256'h3F3E3D3C373635342F2E2D2C272625241F1E1D1C171615140F0E0D0C07060504),
    // Decrementing dwords
    .INIT_2C(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_2D(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_2E(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_2F(256'h0000000000000000000000000000000000000000000000000000000000000000),
    // Random Data #1
    .INIT_30(256'h40888BA10E82FB03102131AA6A65B7048B2927D64F4B4A3102131AA6A645ACFD),
    .INIT_31(256'h7AD9B0660014D920876D1A3C3864C04A63FD41FF1BB79B4A310F7B7BB8F5D24A),
    .INIT_32(256'h2B6A923ED08B8920E5CFEC97EB7015209C9EEE8D14C70480F69A24C1916C4880),
    .INIT_33(256'hF9F973DFA353BC80AC3EBE1D53BA14801A355FDFED38C3004482EF8D40A54300),
    // Random Data #2
    .INIT_34(256'hFC28767E796E3800C93D200EAE38D0007CE423368056D00094935192586A1321),
    .INIT_35(256'hE44049B62503D656E60909F7F2073031640611E4D37B8F3B2DCA845E70AF3171),
    .INIT_36(256'hC0E5C09F37CE6792E479B612E12A10A548D99E92943DFE47F3989BF6972EAA49),
    .INIT_37(256'h72497F5F50DCA3A8C03F35E38192F028680F84CDE62FB1B0576AB47AED8622B0),
    // More incrementing dwords
    .INIT_38(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_39(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_3A(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_3B(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_3C(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_3D(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_3E(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_3F(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_40(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_41(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_42(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_43(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_44(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_45(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_46(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_47(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_48(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_49(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_4A(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_4B(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_4C(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_4D(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_4E(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_4F(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_50(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_51(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_52(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_53(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_54(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_55(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_56(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_57(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_58(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_59(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_5A(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_5B(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_5C(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_5D(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_5E(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_5F(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_60(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_61(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_62(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_63(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_64(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_65(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_66(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_67(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_68(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_69(256'h0000000000000000000000000000000000000000000000000000000000000000),
    .INIT_6A(256'h0000000000000000000000000000000000000000000000000000000000000000),