$_DFFSR_NNP_

A negative edge D-type flip-flop with negative polarity set and positive polarity reset.

Truth table:    C S R D | Q
               ---------+---
                - - 1 - | 0
                - 0 - - | 1
                \ - - d | d
                - - - - | q

Simulation model (Verilog)

Listing 167 simcells.v:1580

module \$_DFFSR_NNP_ (C, S, R, D, Q);
    input C, S, R, D;
    output reg Q;
    always @(negedge C, negedge S, posedge R) begin
        if (R == 1)
            Q <= 0;
        else if (S == 0)
            Q <= 1;
        else
            Q <= D;
    end
endmodule

Note

This page was auto-generated from the output of help $_DFFSR_NNP_.