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84. T Flip-Flop with Asynchronous Preset and Reset

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Solving Approach

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Code

module t_ff_async_pr (
    input  CLK,
    input  RST,
    input  PRE,
    input  T,
    output reg Q
);

always @(posedge CLK, posedge RST, posedge PRE) begin
    if (RST)
        Q <= 0;
    else if (PRE)
        Q <= 1;
    else begin
        Q <= T ? ~Q : Q;
    end
end

endmodule

 

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