[ibis-macro] Event triggered PWL sources question
- From: "Muranyi, Arpad" <arpad.muranyi@xxxxxxxxx>
- To: <ibis-macro@xxxxxxxxxxxxx>
- Date: Wed, 26 Oct 2005 12:49:10 -0700
Hello everyone,
I have a question on how the event triggered PWL
sources should be implemented. Please comment ASAP,
since I am in the middle of doing them now and I
need your answers right away.
The goal is to have a something vs. time table in the
PWL source which can be reset to t=0 any time an
input signal crosses a certain threshold. So far
so good.
Question: What should be the behavior be before
the first event occurs? For example, if the PWL
source contains a table that is a waveform defined
for 0 to 2 ns, and the first event occurs at t=5ns,
should the output be the first point of the table
up to 5ns, and then start the waveform, or should
the waveform begin at t=0 run its course once, and
then start over at 5ns and at every subsequent event?
Our library does the second one currently, but I
think the first description is the better (or more
correct) one.
Please comment.
Thanks,
Arpad
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