OpenFPGA/openfpga_flow/openfpga_yosys_techlib/openfpga_dff_map.v

66 lines
1.7 KiB
Verilog

// Basic DFF
module \$_DFF_P_ (D, C, Q);
input D;
input C;
output Q;
parameter _TECHMAP_WIREINIT_Q_ = 1'bx;
dff _TECHMAP_REPLACE_ (.Q(Q), .D(D), .C(C));
endmodule
// Async reset
module \$_DFF_PP0_ (D, C, R, Q);
input D;
input C;
input R;
output Q;
parameter _TECHMAP_WIREINIT_Q_ = 1'bx;
dffr _TECHMAP_REPLACE_ (.Q(Q), .D(D), .C(C), .R(R));
endmodule
// Async reset, enable
module \$_DFFE_PP0P_ (D, C, E, R, Q);
input D;
input C;
input E;
input R;
output Q;
parameter _TECHMAP_WIREINIT_Q_ = 1'bx;
dffre _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .E(E), .R(R));
endmodule
// Latch with Async reset, enable
module \$_DLATCH_PP0_ (input E, R, D, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'bx;
latchre _TECHMAP_REPLACE_ (.D(D), .Q(Q), .E(1'b1), .G(E), .R(R));
endmodule
// The following techmap operation are not performed right now
// as Negative edge FF are not legalized in synth_quicklogic for qlf_k6n10
// but in case we implement clock inversion in the future, the support is ready for it.
module \$_DFF_N_ (D, C, Q);
input D;
input C;
output Q;
parameter _TECHMAP_WIREINIT_Q_ = 1'bx;
dff #(.IS_C_INVERTED(1'b1)) _TECHMAP_REPLACE_ (.Q(Q), .D(D), .C(C));
endmodule
module \$_DFF_NP0_ (D, C, R, Q);
input D;
input C;
input R;
output Q;
parameter _TECHMAP_WIREINIT_Q_ = 1'bx;
dffr #(.IS_C_INVERTED(1'b1)) _TECHMAP_REPLACE_ (.Q(Q), .D(D), .C(C), .R(R));
endmodule
module \$_DFFE_NP0P_ (D, C, E, R, Q);
input D;
input C;
input E;
input R;
output Q;
parameter _TECHMAP_WIREINIT_Q_ = 1'bx;
dffre #(.IS_C_INVERTED(1'b1)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .E(E), .R(R));
endmodule