Subversion Repositories djpeg

//---------------------------------------------------------------------------

// File Name    : jpeg_dqt.v

// Module Name  : jpeg_dqt

// Description  : DQT spcae

// Project      : JPEG Decoder

// Belong to    : 

// Author       : H.Ishihara

// E-Mail       : hidemi@sweetcafe.jp

// HomePage     : http://www.sweetcafe.jp/

// Date         : 2006/10/01

// Rev.         : 1.1

//---------------------------------------------------------------------------

// Rev. Date         Description

//---------------------------------------------------------------------------

// 1.01 2006/10/01 1st Release

//---------------------------------------------------------------------------

`timescale 1ps / 1ps

module jpeg_dqt(

    rst,

    clk,

    DataInEnable,

    DataInColor,

    DataInCount,

    DataIn,

    TableColor,

    TableNumber,

    TableData

);

    input           rst;

    input           clk;

    input           DataInEnable;

    input           DataInColor;

    input [5:0]     DataInCount;

    input [7:0]     DataIn;

    input           TableColor;

    input  [5:0]    TableNumber;

    output [7:0]    TableData;

    // RAM

    reg [7:0]       DQT_Y [0:63];

    reg [7:0]       DQT_C [0:63];

    // RAM

    always @(posedge clk) begin

        if(DataInEnable ==1'b1 && DataInColor ==1'b0) begin

            DQT_Y[DataInCount] <= DataIn;

        end

        if(DataInEnable ==1'b1 && DataInColor ==1'b1) begin

            DQT_C[DataInCount] <= DataIn;

        end

    end

    reg [7:0] TableDataY;

    reg [7:0] TableDataC;

    // RAM out

    always @(posedge clk) begin

        TableDataY <= DQT_Y[TableNumber];

        TableDataC <= DQT_C[TableNumber];

    end

    // Selector

    assign TableData = (TableColor)?TableDataC:TableDataY;

endmodule