lcd_16207_0.v

来自「DE2开发板上的资料,主要是他的例子,含有各种接口程序,如VGA,USB,LCD」· Verilog 代码 · 共 66 行

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//use of Altera Corporation's design tools, logic functions and other
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//output files any of the foregoing (including device programming or
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//of programming logic devices manufactured by Altera and sold by Altera
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//agreement for further details.

// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on

// turn off superfluous verilog processor warnings 
// altera message_level Level1 
// altera message_off 10034 10035 10036 10037 10230 10240 10030 

module lcd_16207_0 (
                     // inputs:
                      address,
                      begintransfer,
                      read,
                      write,
                      writedata,

                     // outputs:
                      LCD_E,
                      LCD_RS,
                      LCD_RW,
                      LCD_data,
                      irq,
                      readdata
                   )
;

  output           LCD_E;
  output           LCD_RS;
  output           LCD_RW;
  inout   [  7: 0] LCD_data;
  output           irq;
  output  [  7: 0] readdata;
  input   [  1: 0] address;
  input            begintransfer;
  input            read;
  input            write;
  input   [  7: 0] writedata;

  wire             LCD_E;
  wire             LCD_RS;
  wire             LCD_RW;
  wire    [  7: 0] LCD_data;
  wire             irq;
  wire    [  7: 0] readdata;
  assign LCD_RW = address[0];
  assign LCD_RS = address[1];
  assign LCD_E = read | write;
  assign LCD_data = (address[0]) ? 8'bz : writedata;
  assign readdata = LCD_data;
  //control_slave, which is an e_avalon_slave

endmodule