[SI-LIST] : IBIS model gives numerous errors

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From: Stubbs, Jason (Jason.Stubbs@marconi.com)
Date: Mon Apr 16 2001 - 14:24:01 PDT


I have an IBIS buffer model that I downloaded from Lucent for their ORCA 3T
FPGA called OBZ12F that gives me numerous errors when I try to read it in to
ICX as part of an IBIS part model. The errors are non-monotonic, and I
usually try to correct these by editing the appropriate tables, but I'm not
having any success with this model.

Does anyone have any suggestions on the best way to remove non-monotonic
errors?

Also, regarding the IBIS spec, I know that [pullup] is referenced to Vcc &
[pulldown] is referenced to GND, but is it the same for the [power clamp]
and [GND clamp] or are they both referenced to GND?

Regards

Jason Stubbs

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