"non-monotonic" warning in IBIS checker

Hi,
I have a question regarding IBIS models. When I try
to use IBIS checker to verify the models IBIS models
(Hyperlynx simulator) I get warning messages regading
to 'non-monotonic' nature of some signals. Some of
the warning are as following such:

Pulldown Maximum data is non-monotonic
Pulldown typical data is non-monotonic
Power clamp Minimum data is non-monotonic
 and so on.

I want to know what is the reason for
this'non-monotonic' warning? Do we need to be worry
about it? Would it effect simulation ? How we can
expalin this warning?

Best regards,
Sherri
sazgomi@yahoo.com

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Received on Mon Apr 10 17:18:35 2000