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coolrunner2: Add extraction for TFFs

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This commit is contained in:
Robert Ou 2018-03-31 02:54:26 -07:00
parent dd5fab69c1
commit 8fe9cdf364
3 changed files with 54 additions and 0 deletions
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41
techlibs/coolrunner2/tff_extract.v Normal file
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module FTCP (C, PRE, CLR, T, Q);
input C, PRE, CLR, T;
output wire Q;
wire xorout;
$_XOR_ xorgate (
.A(T),
.B(Q),
.Y(xorout),
);
$_DFFSR_PPP_ dff (
.C(C),
.D(xorout),
.Q(Q),
.S(PRE),
.R(CLR),
);
endmodule
module FTCP_N (C, PRE, CLR, T, Q);
input C, PRE, CLR, T;
output wire Q;
wire xorout;
$_XOR_ xorgate (
.A(T),
.B(Q),
.Y(xorout),
);
$_DFFSR_NPP_ dff (
.C(C),
.D(xorout),
.Q(Q),
.S(PRE),
.R(CLR),
);
endmodule