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74. Gated SR Latch

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Solving Approach

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Code

module sr_latch_enable (
    input  EN,
    input  S,
    input  R,
    output reg Q,
    output reg Qn
);


    always @(*) begin 
        if (EN) begin
        if (S && R) begin
            Q  = 1'b0;
            Qn = 1'b1;
        end else if (S && !R) begin
            Q  = 1'b1;
            Qn = 1'b0;
        end else if (!S && R) begin
            Q  = 1'b0;
            Qn = 1'b1;
        end 
        end
    end


endmodule

 

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