[ibis-macro] Re: Unanswered question from last week.
- From: Walter Katz <wkatz@xxxxxxxxxx>
- To: <DBanas@xxxxxxxxxx>, <ibis-macro@xxxxxxxxxxxxx>
- Date: Tue, 15 Apr 2014 16:28:36 -0400 (EDT)
David,
Your statement is not quite correct. I think the statement should be:
Why must the Tx .ami file tell the EDA tool, if it assisted the user in
choosing "optimum" tap weights?
or
Why must the Tx .ami file tell allow the EDA tool to tell the Tx
AMI_Init() to assist the user in choosing "optimum" tap weights?
The reason for letting the EDA tool know what the Tx AMI_Init() function
is doing (or controlling what the Tx AMI_Init() function is doing is
important in co-optimization, particularly in the statistical flow. The Rx
AMI_Init needs to know the Tx equalization used to generate the input to
the Rx AMI_Init, and when the Rx AMI_Init returns an optimized Tx tap
coefficients, the Tx AMI_Init function needs to be called with these
coefficients, and the Tx AMI_Init must use the equalization for these tap
coefficients.
Does this answer your question?
Walter
From: ibis-macro-bounce@xxxxxxxxxxxxx
[mailto:ibis-macro-bounce@xxxxxxxxxxxxx] On Behalf Of David Banas
Sent: Tuesday, April 15, 2014 2:30 PM
To: ibis-macro@xxxxxxxxxxxxx
Subject: [ibis-macro] Unanswered question from last week.
Hi all,
I asked a question, at the end of Walter's presentation last week, which I
don't think was ever answered. So, I'd like to ask it, again:
Why must the Tx AMI_Init() function tell the EDA tool, if it assisted the
user in choosing "optimum" tap weights?
(How, for instance, is this use case different than the user relying on,
say, MATLAB to help him find optimum tap weights and setting those
MATLAB-prescribed values in the AMI model, by hand?)
Thanks,
-db
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