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- `timescale 1ns / 1ps
-
- module FifoController
- (
- input Clk_i,
- input ClkPpiOut_i,
- input Rst_i,
- input PpiBusy_i,
- input MeasDataVal_i,
- input FullFlag_i,
- input EmptyFlag_i,
-
- output MeasDataVal_o,
-
- output reg WrEn_o,
- output RdEn_o
- );
- //================================================================================
- // REG/WIRE
- //================================================================================
- reg rdEn;
- //================================================================================
- // ASSIGNMENTS
- //================================================================================
- assign MeasDataVal_o = rdEn&(!PpiBusy_i);
- assign RdEn_o = rdEn&(!PpiBusy_i);
- //================================================================================
- // CODING
- //================================================================================
- always @(posedge Clk_i) begin
- if (!Rst_i) begin
- if (MeasDataVal_i) begin
- if (!FullFlag_i) begin
- WrEn_o <= 1'b1;
- end else begin
- WrEn_o <= 1'b0;
- end
- end else begin
- WrEn_o <= 1'b0;
- end
- end else begin
- WrEn_o <= 1'b0;
- end
- end
- always @(posedge Clk_i) begin
- if (!Rst_i) begin
- if (!PpiBusy_i) begin
- if (!EmptyFlag_i) begin
- rdEn <= 1'b1;
- end else begin
- rdEn <= 1'b0;
- end
- end else begin
- rdEn <= 1'b0;
- end
- end else begin
- rdEn <= 1'b0;
- end
- end
- endmodule
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