Re[2]: Spice Model of IBIS

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John,

Short of proposing a standard, we have done just that (last paragraph in
included message below). About five or so years ago we asked several SPICE
vendors to support IBIS (behavioral) modeling by improving the existing
controlled sources. Neither one of the companies responded positively, because
they felt that their main strengths was in transistor level modeling. Since
then all I can do is tell people who are asking for behavioral SPICE models to
go to their SPICE vendor and let them know about their need. Maybe customer
demand will change their mind.

By the way, the whole IBIS idea started from my behavioral modeling work in
HSPICE, so it can be done, but it would be a lot easier and more robust with
more IBIS specific controlled elements.

Sincerely,

Arpad Muranyi
Intel Corporation
================================================================================

Thank you to all those people who responded to my last posting. I guess my
previous question wasn't very clear, and so I got the standard response that
SPICE is a functional simulator, not a behavioral simulator.

I wasn't proposing to use SPICE as a functional simulator, but rather I was
proposing to use SPICE as a behavioral simulator. If you construct a SPICE
model equivalent to IBIS 2.1 or 3 model, using tables in the same way IBIS
does, then SPICE can be used as a behavioral simulator.

Ian Dodd pointed out that the syntax used by various SPICE simulators for
behavioral simulation tends to be proprietary to each SPICE vendor. Is this
really the case?

If proprietary syntax is the problem, then why not propose a standard
behavioral syntax be added to SPICE?

Regards

John Synesiou jsynesio@us-power.com
U.S. Power, Inc Phone (612)826-1111
6497 City West Parkway Fax (612)826-1003
Eden Prairie Date: 03/28/98
MN, 55344 Time: 5:59 PM

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Date: Sat, 28 Mar 1998 18:12:58 -0600
Subject: RE: Spice Model of IBIS
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