verilog strength coding

tok47 · May 9, 2013

Hi all,

Will these 2 giving a same output?

bufif1 (weak0,weak1) G1 (A11,1'b0,DATAR);
bufif1 (weak0,weak1) G2 (A11,1'b0,DATAR);

dave_59 · May 9, 2013

Yes, Verilog does not add drive strengths together, nor does it reduce strengths based on how much fanout the signal has.

tok47 · May 10, 2013

then, how about
bufif1 (weak0,weak1) G1 (A11,1'b0,DATAR);
bufif1 (weak1,weak0) G2 (A11,1'b0,DATAR);

any different for these 2?

dave_59 · May 10, 2013

no difference.

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