RE: [IBIS-Users] Which IBIS version to use???

Tim,
 
Since IBIS 2.1 I've not seen any simulator that support and utilizes all
keywords and parameters of any version of the IBIS spec. You need to
evaluate what aspects of the IBIS spec apply to your I/O pins and use
those appropriate keywords. Then you specify the IBIS version of the
file to be the lowest number that includes the features you've used.
Throughout this process you should read the latest version of the
specification since it will be the clearest and most complete
description of the various features.
 
Even though ICX might not explicitly state that it supports IBIS 4.1, it
does support the [external model], [external circuit], [node
declaration], and [circuit call] keywords quite well. Check the ICX
modeling guide for slight differences from the official IBIS syntax.
 
Regards,
Weston
 

________________________________

From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org] On
Behalf Of Nash, Tim J (FL51)
Sent: Tuesday, July 12, 2005 12:27 PM
To: ibis-users@eda.org
Subject: [IBIS-Users] Which IBIS version to use???



There seems to be some confusion among my peers as to which IBIS version
we should be working to.  The latest ANSI version appears to be 3.2, but
there are specifications available up to 4.1.  The parser available in
latest released versions of Hyperlinx and ICX is still v3.2, so I'm not
sure that Hyperlinx or ICX would even recognize v4.1 keywords.  Is there
an "official" committee recommendation of what version should be
utilized in new designs - the latest available, or the latest ANSI
approved version?

Thanks in advance, 
Tim 



__________________________________ 
Timothy J. Nash, P.E. 
Honeywell, Inc. 
Defense & Space Electronic Systems 
13350 U.S. Hwy 19 N 
M/S 825-1 
Clearwater, FL  33764-7290 
Office : 727-539-2437 
Fax     : 727-539-2183 
Email  :  tim.j.nash@honeywell.com 


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