I am trying to understand if the vital library supports
both distributed and lumped delay.
When reviewing what Mentor Graphic's extract tool spits out for an
SDF back-annotation file, they seem to only support only one type
of delay. This could be due to the fact that their extraction tool seems
to have only hooks for a equal rise and fall time on the output driver
since output impedance is only one value.
]
Thanks.
Jim