top.vf

来自FPGA开发板的PS2开发源代码

////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 1995-2003 Xilinx, Inc.
// All Right Reserved.
////////////////////////////////////////////////////////////////////////////////
//   ____  ____ 
//  /   /\/   / 
// /___/  \  /    Vendor: Xilinx 
// \   \   \/     Version : 7.1i
//  \   \         Application : sch2verilog
//  /   /         Filename : top.vf
// /___/   /\     Timestamp : 05/29/2008 23:58:00
// \   \  /  \ 
//  \___\/\___\ 
//
//Command: C:/Xilinx/bin/nt/sch2verilog.exe -intstyle ise -family spartan3 -w top.sch top.vf
//Design Name: top
//Device: spartan3
//Purpose:
//    This verilog netlist is translated from an ECS schematic.It can be 
//    synthesized and simulated, but it should not be modified. 
//
`timescale 1ns / 1ps

module top(clk, 
           rst, 
           data, 
           lcd_e, 
           lcd_rs, 
           lcd_rw, 
           led, 
           ps2ck, 
           ps2dk);

    input clk;
    input rst;
   output [7:0] data;
   output lcd_e;
   output lcd_rs;
   output lcd_rw;
   output [7:0] led;
    inout ps2ck;
    inout ps2dk;
   
   wire XLXN_4;
   wire XLXN_5;
   wire XLXN_6;
   
   div_256 XLXI_1 (.mclk(clk), 
                   .reset(rst), 
                   .clk(XLXN_6));
   div16 XLXI_2 (.clk(clk), 
                 .rst(rst), 
                 .clk_16(XLXN_5));
   lcd XLXI_3 (.clk(XLXN_5), 
               .data_in(led[7:0]), 
               .rst(XLXN_4), 
               .data(data[7:0]), 
               .lcd_e(lcd_e), 
               .lcd_rs(lcd_rs), 
               .lcd_rw(lcd_rw));
   ps2_keyboard_interface XLXI_4 (.clk(XLXN_6), 
                                  .reset(rst), 
                                  .rx_read(), 
                                  .tx_data(), 
                                  .tx_write(), 
                                  .rx_ascii(led[7:0]), 
                                  .rx_data_ready(), 
                                  .rx_extended(), 
                                  .rx_released(XLXN_4), 
                                  .rx_scan_code(), 
                                  .rx_shift_key_on(), 
                                  .tx_error_no_keyboard_ack(), 
                                  .tx_write_ack_o(), 
                                  .ps2_clk(ps2ck), 
                                  .ps2_data(ps2dk));
endmodule