此範例在 Verilog HDL 中實作計時雙向針腳。OOE 的價值決定了托比爾是輸入、以吋輸入或是三狀態,將價值推出 b。
如需在專案中使用此範例的詳細資訊,請前往:
bidir.v module bidirec (oe, clk, inp, outp, bidir); // Port Declaration input oe; input clk; input [7:0] inp; output [7:0] outp; inout [7:0] bidir; reg [7:0] a; reg [7:0] b; assign bidir = oe ? a : 8'bZ ; assign outp = b; // Always Construct always @ (posedge clk) begin b <= bidir; a <= inp; end endmodule