receive_tb.v

基于802.3以太网的mac源码

/*-------------------------------------------------------------------------------
-- $Revision: 1.5 $ $Date: 2008-04-10 00:44:36 $
-- Title      : Demo testbench
-- Project    : 10 Gigabit Ethernet MAC
-------------------------------------------------------------------------------
-- File       : demo_tb.v
-------------------------------------------------------------------------------
-- Description: This testbench will exercise the ports of the MAC core to
--              demonstrate the functionality.
-------------------------------------------------------------------------------
-- Copyright (c) 2001 Xilinx Inc.
-------------------------------------------------------------------------------
--
-- This testbench performs the following operations on the MAC core:
--  - The clock divide register is set for MIIM operation.   */
/*  - The clientXGMII port is wired as a loopback, so that transmitted frames
--    are then injected into the receiver.
--  - Four frames are pushed into the receiver. The first is a minimum
--    length frame, the second is slightly longer, the third has an error
--    asserted and the fourth is less than minimum length and is padded
--    up to the minimum.
--  - These frames are then looped back and sent out by the transmitter.
--  */

`timescale 1ps / 1ps

module frame_typ;
   // This module abstracts the frame data for simpler manipulation
   reg [31:0] data [0:31];
   reg [ 3:0] ctrl [0:31];
   reg [31:0] crc;
   reg               underrun;

`define FRAME_TYP [32*32+32*4+32+1:1]

   reg `FRAME_TYP bits;

   function `FRAME_TYP tobits;
      input dummy;
      begin
         bits = {data[ 0], data[ 1], data[ 2], data[ 3], data[ 4],
                 data[ 5], data[ 6], data[ 7], data[ 8], data[ 9],
                 data[10], data[11], data[12], data[13], data[14],
                 data[15], data[16], data[17], data[18], data[19],
                 data[20], data[21], data[22], data[23], data[24],
                 data[25], data[26], data[27], data[28], data[29],
                 data[30], data[31], ctrl[ 0], ctrl[ 1], ctrl[ 2],
                 ctrl[ 3], ctrl[ 4], ctrl[ 5], ctrl[ 6], ctrl[ 7],
                 ctrl[ 8], ctrl[ 9], ctrl[10], ctrl[11], ctrl[12],
                 ctrl[13], ctrl[14], ctrl[15], ctrl[16], ctrl[17],
                 ctrl[18], ctrl[19], ctrl[20], ctrl[21], ctrl[22],
                 ctrl[23], ctrl[24], ctrl[25], ctrl[26], ctrl[27],
                 ctrl[28], ctrl[29], ctrl[30], ctrl[31], crc, underrun};
         tobits = bits;
      end
   endfunction // tobits

   task frombits;
      input `FRAME_TYP frame;
      begin
         bits = frame;
         {data[ 0], data[ 1], data[ 2], data[ 3], data[ 4], data[ 5],
          data[ 6], data[ 7], data[ 8], data[ 9], data[10], data[11],
          data[12], data[13], data[14], data[15], data[16], data[17],
          data[18], data[19], data[20], data[21], data[22], data[23],
          data[24], data[25], data[26], data[27], data[28], data[29],
          data[30], data[31], ctrl[ 0], ctrl[ 1], ctrl[ 2], ctrl[ 3],
          ctrl[ 4], ctrl[ 5], ctrl[ 6], ctrl[ 7], ctrl[ 8], ctrl[ 9],
          ctrl[10], ctrl[11], ctrl[12], ctrl[13], ctrl[14], ctrl[15],
          ctrl[16], ctrl[17], ctrl[18], ctrl[19], ctrl[20], ctrl[21],
          ctrl[22], ctrl[23], ctrl[24], ctrl[25], ctrl[26], ctrl[27],
          ctrl[28], ctrl[29], ctrl[30], ctrl[31], crc, underrun} = bits;
      end
   endtask // frombits
   
endmodule // frame_typ


// Address of management configuration register
`define CONFIG_MANAGEMENT 9'b101000000
// Address of flow control configuration register
`define CONFIG_FLOW_CTRL  9'b011000000
// addresses of statistics registers
`define STATS_TX_OK       9'b000100000
`define STATS_TX_UNDERRUN 9'b000100011
`define STATS_RX_OK       9'b000000000
`define STATS_RX_FCS_ERR  9'b000000001
`define MIN_FRAME_DATA_BYTES 60


module testbench;

   // Frame data....
   frame_typ frame0();
   frame_typ frame1();
   frame_typ frame2();
   frame_typ frame3();

   frame_typ tx_stimulus_working_frame();
   frame_typ tx_monitor_working_frame();
   frame_typ rx_stimulus_working_frame();
   frame_typ rx_monitor_working_frame();

  // Store the frame data etc....
   initial
     begin
        // Frame 0...
        frame0.data[0]  = 32'h04030201;  
        frame0.data[1]  = 32'h02020605;        
        frame0.data[2]  = 32'h06050403;
        frame0.data[3]  = 32'h55AA2E00;
        frame0.data[4]  = 32'hAA55AA55;  
        frame0.data[5]  = 32'h55AA55AA;
        frame0.data[6]  = 32'hAA55AA55;  
        frame0.data[7]  = 32'h55AA55AA;
        frame0.data[8]  = 32'hAA55AA55;  
        frame0.data[9]  = 32'h55AA55AA;
        frame0.data[10] = 32'hAA55AA55;  
        frame0.data[11] = 32'h55AA55AA;
        frame0.data[12] = 32'hAA55AA55;  
        frame0.data[13] = 32'h55AA55AA;
        frame0.data[14] = 32'hAA55AA55;  
        frame0.data[15] = 32'h00000000;
        frame0.data[16] = 32'h00000000;
        frame0.data[17] = 32'h00000000;
        frame0.data[18] = 32'h00000000;
        frame0.data[19] = 32'h00000000;
        frame0.data[20] = 32'h00000000;
        frame0.data[21] = 32'h00000000;
        frame0.data[22] = 32'h00000000;
        frame0.data[23] = 32'h00000000;
        frame0.data[24] = 32'h00000000;
        frame0.data[25] = 32'h00000000;
        frame0.data[26] = 32'h00000000;
        frame0.data[27] = 32'h00000000;
        frame0.data[28] = 32'h00000000;
        frame0.data[29] = 32'h00000000;
        frame0.data[30] = 32'h00000000;
        frame0.data[31] = 32'h00000000;
        frame0.ctrl[0]  = 4'b1111;
        frame0.ctrl[1]  = 4'b1111;
        frame0.ctrl[2]  = 4'b1111;
        frame0.ctrl[3]  = 4'b1111;
        frame0.ctrl[4]  = 4'b1111;
        frame0.ctrl[5]  = 4'b1111;
        frame0.ctrl[6]  = 4'b1111;
        frame0.ctrl[7]  = 4'b1111;
        frame0.ctrl[8]  = 4'b1111;
        frame0.ctrl[9]  = 4'b1111;
        frame0.ctrl[10] = 4'b1111;
        frame0.ctrl[11] = 4'b1111;
        frame0.ctrl[12] = 4'b1111;
        frame0.ctrl[13] = 4'b1111;
        frame0.ctrl[14] = 4'b1111;
        frame0.ctrl[15] = 4'b0000;
        frame0.ctrl[16] = 4'b0000;
        frame0.ctrl[17] = 4'b0000;
        frame0.ctrl[18] = 4'b0000;
        frame0.ctrl[19] = 4'b0000;
        frame0.ctrl[20] = 4'b0000;
        frame0.ctrl[21] = 4'b0000;
        frame0.ctrl[22] = 4'b0000;
        frame0.ctrl[23] = 4'b0000;
        frame0.ctrl[24] = 4'b0000;
        frame0.ctrl[25] = 4'b0000;
        frame0.ctrl[26] = 4'b0000;
        frame0.ctrl[27] = 4'b0000;
        frame0.ctrl[28] = 4'b0000;
        frame0.ctrl[29] = 4'b0000;
        frame0.ctrl[30] = 4'b0000;
        frame0.ctrl[31] = 4'b0000;
        
        frame0.crc = 32'h0D4820F6;
        
        frame0.underrun = 1'b0;
        
        // Frame 1
        frame1.data[0]  = 32'h03040506;
        frame1.data[1]  = 32'h05060102;
        frame1.data[2]  = 32'h02020304;  
        frame1.data[3]  = 32'hEE110080;
        frame1.data[4]  = 32'h11EE11EE;
        frame1.data[5]  = 32'hEE11EE11;
        frame1.data[6]  = 32'h11EE11EE;
        frame1.data[7]  = 32'hEE11EE11;
        frame1.data[8]  = 32'h11EE11EE;
        frame1.data[9]  = 32'hEE11EE11;
        frame1.data[10] = 32'h11EE11EE;  
        frame1.data[11] = 32'hEE11EE11;
        frame1.data[12] = 32'h11EE11EE;
        frame1.data[13] = 32'hEE11EE11;
        frame1.data[14] = 32'h11EE11EE;  
        frame1.data[15] = 32'hEE11EE11;
        frame1.data[16] = 32'h11EE11EE;
        frame1.data[17] = 32'hEE11EE11;
        frame1.data[18] = 32'h11EE11EE;
        frame1.data[19] = 32'hEE11EE11;
        frame1.data[20] = 32'h11EE11EE;  
        frame1.data[21] = 32'h0000EE11;
        frame1.data[22] = 32'h00000000;
        frame1.data[23] = 32'h00000000;
        frame1.data[24] = 32'h00000000;
        frame1.data[25] = 32'h00000000;
        frame1.data[26] = 32'h00000000;
        frame1.data[27] = 32'h00000000;
        frame1.data[28] = 32'h00000000;
        frame1.data[29] = 32'h00000000;
        frame1.data[30] = 32'h00000000;
        frame1.data[31] = 32'h00000000;

        frame1.ctrl[0]  = 4'b1111;
        frame1.ctrl[1]  = 4'b1111;
        frame1.ctrl[2]  = 4'b1111;
        frame1.ctrl[3]  = 4'b1111;
        frame1.ctrl[4]  = 4'b1111;
        frame1.ctrl[5]  = 4'b1111;
        frame1.ctrl[6]  = 4'b1111;
        frame1.ctrl[7]  = 4'b1111;
        frame1.ctrl[8]  = 4'b1111;
        frame1.ctrl[9]  = 4'b1111;
        frame1.ctrl[10] = 4'b1111;
        frame1.ctrl[11] = 4'b1111;
        frame1.ctrl[12] = 4'b1111;
        frame1.ctrl[13] = 4'b1111;
        frame1.ctrl[14] = 4'b1111;
        frame1.ctrl[15] = 4'b1111;
        frame1.ctrl[16] = 4'b1111;
        frame1.ctrl[17] = 4'b1111;
        frame1.ctrl[18] = 4'b1111;
        frame1.ctrl[19] = 4'b1111;
        frame1.ctrl[20] = 4'b1111;
        frame1.ctrl[21] = 4'b0011;
        frame1.ctrl[22] = 4'b0000;
        frame1.ctrl[23] = 4'b0000;
        frame1.ctrl[24] = 4'b0000;
        frame1.ctrl[25] = 4'b0000;
        frame1.ctrl[26] = 4'b0000;
        frame1.ctrl[27] = 4'b0000;
        frame1.ctrl[28] = 4'b0000;
        frame1.ctrl[29] = 4'b0000;
        frame1.ctrl[30] = 4'b0000;
        frame1.ctrl[31] = 4'b0000;
        
        frame1.crc = 32'hDE13388C;
        
        frame1.underrun = 1'b0;
    
        // Frame 2
        frame2.data[0]  = 32'h04030201;
        frame2.data[1]  = 32'h02020605;
        frame2.data[2]  = 32'h06050403;
        frame2.data[3]  = 32'h55AA2E80;
        frame2.data[4]  = 32'hAA55AA55;
        frame2.data[5]  = 32'h55AA55AA;
        frame2.data[6]  = 32'hAA55AA55;
        frame2.data[7]  = 32'h55AA55AA;
        frame2.data[8]  = 32'hAA55AA55;  
        frame2.data[9]  = 32'h55AA55AA;
        frame2.data[10] = 32'hAA55AA55;
        frame2.data[11] = 32'h55AA55AA;
        frame2.data[12] = 32'hAA55AA55;
        frame2.data[13] = 32'h55AA55AA;
        frame2.data[14] = 32'hAA55AA55;
        frame2.data[15] = 32'h55AA55AA;
        frame2.data[16] = 32'hAA55AA55;
        frame2.data[17] = 32'h55AA55AA;
        frame2.data[18] = 32'hAA55AA55;
        frame2.data[19] = 32'h55AA55AA;
        frame2.data[20] = 32'h00000000;  
        frame2.data[21] = 32'h00000000;
        frame2.data[22] = 32'h00000000;  
        frame2.data[23] = 32'h00000000;
        frame2.data[24] = 32'h00000000;
        frame2.data[25] = 32'h00000000;
        frame2.data[26] = 32'h00000000;
        frame2.data[27] = 32'h00000000;
        frame2.data[28] = 32'h00000000;
        frame2.data[29] = 32'h00000000;
        frame2.data[30] = 32'h00000000;
        frame2.data[31] = 32'h00000000;

        frame2.ctrl[0] = 4'b1111;
        frame2.ctrl[1] = 4'b1111;
        frame2.ctrl[2] = 4'b1111;
        frame2.ctrl[3] = 4'b1111;
        frame2.ctrl[4] = 4'b1111;
        frame2.ctrl[5] = 4'b1111;
        frame2.ctrl[6] = 4'b1111;
        frame2.ctrl[7] = 4'b1111;
        frame2.ctrl[8] = 4'b1111;
        frame2.ctrl[9] = 4'b1111;
        frame2.ctrl[10] = 4'b1111;
        frame2.ctrl[11] = 4'b1111;
        frame2.ctrl[12] = 4'b1111;
        frame2.ctrl[13] = 4'b1111;
        frame2.ctrl[14] = 4'b1111;
        frame2.ctrl[15] = 4'b1111;
        frame2.ctrl[16] = 4'b1111;
        frame2.ctrl[17] = 4'b1111;
        frame2.ctrl[18] = 4'b1111;
        frame2.ctrl[19] = 4'b1111;
        frame2.ctrl[20] = 4'b0000;
        frame2.ctrl[21] = 4'b0000;
        frame2.ctrl[22] = 4'b0000;
        frame2.ctrl[23] = 4'b0000;
        frame2.ctrl[24] = 4'b0000;
        frame2.ctrl[25] = 4'b0000;
        frame2.ctrl[26] = 4'b0000;
        frame2.ctrl[27] = 4'b0000;
        frame2.ctrl[28] = 4'b0000;
        frame2.ctrl[29] = 4'b0000;
        frame2.ctrl[30] = 4'b0000;
        frame2.ctrl[31] = 4'b0000;
        
        frame2.crc = 32'h20C6B69D;
    
        frame2.underrun = 1'b1;
    
        // Frame 3
        frame3.data[0]  = 32'h03040506;
        frame3.data[1]  = 32'h05060102;
        frame3.data[2]  = 32'h02020304;  
        frame3.data[3]  = 32'hEE111500;
        frame3.data[4]  = 32'h11EE11EE;  
        frame3.data[5]  = 32'hEE11EE11;
        frame3.data[6]  = 64'h11EE11EE;  
        frame3.data[7]  = 32'hEE11EE11;
        frame3.data[8]  = 32'h00EE11EE;
        frame3.data[9]  = 32'h00000000;
        frame3.data[10] = 32'h00000000;
        frame3.data[11] = 32'h00000000;
        frame3.data[12] = 32'h00000000;
        frame3.data[13] = 32'h00000000;
        frame3.data[14] = 32'h00000000;
        frame3.data[15] = 32'h00000000;
        frame3.data[16] = 32'h00000000;
        frame3.data[17] = 32'h00000000;
        frame3.data[18] = 32'h00000000;
        frame3.data[19] = 32'h00000000;
        frame3.data[20] = 32'h00000000;
        frame3.data[21] = 32'h00000000;
        frame3.data[22] = 32'h00000000;
        frame3.data[23] = 32'h00000000;
        frame3.data[24] = 32'h00000000;
        frame3.data[25] = 32'h00000000;
        frame3.data[26] = 32'h00000000;
        frame3.data[27] = 32'h00000000;
        frame3.data[28] = 32'h00000000;
        frame3.data[29] = 32'h00000000;
        frame3.data[30] = 32'h00000000;
        frame3.data[31] = 32'h00000000;

        frame3.ctrl[0]  = 4'b1111;
        frame3.ctrl[1]  = 4'b1111;
        frame3.ctrl[2]  = 4'b1111;
        frame3.ctrl[3]  = 4'b1111;
        frame3.ctrl[4]  = 4'b1111;
        frame3.ctrl[5]  = 4'b1111;
        frame3.ctrl[6]  = 4'b1111;
        frame3.ctrl[7]  = 4'b1111;
        frame3.ctrl[8]  = 4'b0111;
        frame3.ctrl[9]  = 4'b0000;
        frame3.ctrl[10] = 4'b0000;
        frame3.ctrl[11] = 4'b0000;
        frame3.ctrl[12] = 4'b0000;
        frame3.ctrl[13] = 4'b0000;
        frame3.ctrl[14] = 4'b0000;
        frame3.ctrl[15] = 4'b0000;
        frame3.ctrl[16] = 4'b0000;
        frame3.ctrl[17] = 4'b0000;