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IonHide
New Contributor
New ContributorConnection between two inout ports
Hello, I need to connect the 10 inout pins(A) to 10 inout pins (B) based on the logic of the cntrl signal (C) with respect to clock. i-e when C = 0 , connect port A to port B & when C= 1 , co...
IonHideNew Contributor
New Contributoralways @(posedge clk) begin
if (C) begin
B_out = A;
A_en = 0;
B_en = 1;
end else begin
A_out = B;
A_en = 1;
B_en = 0;
end
end
assign A = A_en ? A_out : 10'bz;
assign B = B_en ? B_out : 10'bz;
where A, B are inout ports , C input signal& others are local registers.
Regards.
FvM
Super Contributor
Super ContributorHi,
doesn't look bad. Don't know which problem you experience. First output after direction signal change will be invalid due to registered x_en signal. E.g. C 1->0, A_ out latches old B output, then deactivate B and enables A. Unregistered x_en may achieve intended behaviour.
If you don't get reasonable output at all, it's probably due to testbench design fault.
