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[/] [nysa_sata/] [trunk/] [sim/] [hd_data_reader.v] - Rev 5
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module hd_data_reader ( input clk, input rst, input enable, output reg error, input hd_read_from_host, input [31:0] hd_data_from_host ); //Registers/Wires reg prev_enable; wire posedge_enable; reg [31:0] test_data; //Submodules //Asynchronous Logic assign posedge_enable = (!prev_enable && enable); //Synchronous Logic always @ (posedge clk) begin if (rst) begin prev_enable <= 0; error <= 0; test_data <= 0; end else begin prev_enable <= enable; if (posedge_enable) begin error <= 0; test_data <= 0; end else begin if (hd_read_from_host) begin if (hd_data_from_host != test_data) begin error <= 1; end test_data <= test_data + 1; end end end end endmodule
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