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74. Gated SR Latch

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Solving Approach

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Code

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

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

endmodule

 

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