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84. T Flip-Flop with Asynchronous Preset and Reset

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Code

module t_ff_async_pr (
    input  CLK,
    input  RST,
    input  PRE,
    input  T,
    output reg Q
);
    always @(posedge CLK or posedge RST or posedge PRE) begin
        if (RST)      Q = 1'b0;
        else if (PRE) Q = 1'b1;
        else if (T)   Q = ~Q;
        else          Q =  Q;
    end
    
endmodule

 

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