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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
);
	// Write your code here
    always@(*)begin
        if(EN)begin
            if( S && ~R )begin
            Q= 1'b1;
            Qn = 0;
            end else if( ~S && R) begin
                Q =0;
                Qn = 1'b1;
            end else if (S && R )begin
                 Q = 0;
                 Qn = 1'b1;
            end else if (~S && ~R)begin
                Q = Q;
                Qn = Qn;
            end

        end
    end
endmodule

 

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