Subversion Repositories spi_core_dsp_s3ean_kits

module dac(spi_clk, reset, cs, din, dout, command, dacN, dacDATA);

        parameter Tp = 1;

        input spi_clk, reset, cs, din;

        output [3:0]     command;

        output [3:0]     dacN;

        output [11:0]    dacDATA;

        output dout;

        reg [0:31] data;

        reg dout;

        reg temp;

        assign command = data [0:3];

        assign dacN = data [4:7];

        assign dacDATA = data [8:19];

        always @(posedge spi_clk or posedge reset)

        begin

                if(reset)

                begin

                        temp <= 1'b0;

                        data <= 'b0;

                end

                else if(!cs)

                begin

                        data <= #Tp  {din,data[0:30]};

                        temp <= #Tp  data[31];

                end

        end

        always @(negedge spi_clk)

                dout <= #Tp data[31];

endmodule