[HDL] Add multi-mode DFF module
@@ -289,6 +289,34 @@ assign Q = q_reg;
endmodule //End Of Module
+//-----------------------------------------------------
+// Function : A multi-functional D-type flip-flop with
+// - asynchronous reset
+// which can be switched between active-low and active hight
+// - asynchronous set which can be switched
+// which can be switched between active-low and active hight
+//-----------------------------------------------------
+module MULTIMODE_DFFSRQ (
+ input SET, // Set input
+ input RST, // Reset input
+ input CK, // Clock Input
+ input D, // Data Input
+ output Q, // Q output
+ input [0:1] mode // mode-selection bits: bit0 for reset polarity; bit1 for set polarity
+);
+
+wire post_set = mode ? ~SET : SET;
+wire post_reset = mode ? ~RST : RST;
+
+DFFSRQ FF_CORE (.SET(post_set),
+ .RST(post_rst),
+ .CK(CK),
+ .D(D),
+ .Q(Q)
+ );
+
+endmodule //End Of Module
+
//-----------------------------------------------------
// Function : D-type flip-flop with
// - asynchronous active high reset
