[SI-LIST] Re: Does anyone know how to convert IBIS version 3.2 to version 1.1?

Hello, Linda, 

You might want to ask PSpice Support.  Although the IBIS to PSpice converter
only supports IBIS 1.1, it is possible that PSpice itself might support a
higher level.

- Lynne


"IBIS training when you need it, where you need it."

Dr. Lynne Green
Green Streak Programs
http://www.greenstreakprograms.com
425-788-0412
lgreen22@xxxxxxxxxxxxxx

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Mirmak, Michael
Sent: Saturday, January 20, 2007 12:39 AM
To: lindazhang_si@xxxxxxxxx; si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Does anyone know how to convert IBIS version 3.2 to
version 1.1?

Linda,

Assuming the file is relatively simple and built correctly, you can do this
conversion manually by deleting the V-t tables (the keywords [Rising
Waveform] and [Falling Waveform] and the data with them).
Change the [IBIS Ver] entry to "1.1" and run the IBISCHK4 parser on the
file.  Remove any keywords or subparameters that cause errors.  If the
[Ramp] in the original 3.2 file used a 50 ohm load, you should have a
1.1-compliant IBIS file after the changes.

Note that you may lose more than a little detail in the response of the
buffer -- IBIS 1.1 only supported simple ramp rates under the [Ramp]
keyword.  Other useful keywords and buffer types are not supported under
IBIS 1.1 either.  In other words, the conversion may give you a file that is
compliant to 1.1, but is far less useful!

- Michael Mirmak
  Intel Corp.
  Chair, EIA IBIS Open Forum

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of Linda Zhang
Sent: Friday, January 19, 2007 17:54
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Does anyone know how to convert IBIS version 3.2 to
version 1.1?

The IBIS to PSPICE converter only works for IBIS version 1.1, but the vendor
gives me the IBIS model of version 3.2. I have to run it in PSPICE. Does
anyone know how to convert ver 3.2 to ver 1.1? Thank you in advacne.
  =20
  Linda=20
=20
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