[SI-LIST] Re: IBIS-AMI Vendor Support Help
- From: <sanjeev_gupta@xxxxxxxxxxx>
- To: <Arpad_Muranyi@xxxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Mon, 8 Feb 2010 17:03:15 -0700
Hello Arpad,
Thank you for your reply!
Moreover I think it will avoid uncertainty in AMI models if two EDA
tools provide good correlation.
Best regards and have a nice day
Sanjeev
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of Muranyi, Arpad
Sent: Monday, February 08, 2010 3:49 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: IBIS-AMI Vendor Support Help
Sanjeev,
I would recommend the following:
Zero out the package related stuff in the .ibs file to
basically turn package modeling off in it.
Provide an S-parameter package file separately the same
way as the channel's S-parameter file would be distributed.
This could be documented in the .ibs file behind comments.
The customer will use whatever method to include this in
their favorite EDA tool.
If there is a need for on-die interconnect parasitic modeling,
it could be done the same way as the package model described
in the previous paragraph. The two might even be combined into
a single S-parameter file if that is more convenient or practical.
I would NOT provide a speculated IBIS syntax or any tool
specific syntax in the .ibs file for anything, unless a
clear and unambiguous description is given, so that another
EDA vendor could reproduce the same results with their products.
For the rest of the buffer description I would encourage
everyone to use existing IBIS constructs as far as possible.
And again, if certain features cannot be described that way,
I would encourage everyone to provide a detailed description
for what needs to be modeled so that anyone could make their
own model implementations using their favorite EDA tools
based on that description.
Thanks for asking the question.
Arpad
================================================================
-----Original Message-----
From: sanjeev_gupta@xxxxxxxxxxx [mailto:sanjeev_gupta@xxxxxxxxxxx]
Sent: Monday, February 08, 2010 5:29 PM
To: Muranyi, Arpad; si-list@xxxxxxxxxxxxx
Cc: sanjeev_gupta@xxxxxxxxxxx
Subject: RE: [SI-LIST] Re: IBIS-AMI Vendor Support Help
Hello Arpad,
What will be your advice to companies who are ramping up on AMI? Should
they include some non-AMI syntax for package modeling assuming that IBIS
AMI standard will support these keywords in near future or provide these
package model as a separate Touchstone file which can be integrated
within simulation environment?
Best regards
Sanjeev
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