Hello,
I tend to agree with Ambrish. We had cases when the model returned the *wrong*
values, maybe
because they are required and the model maker didn't know what to return. The
model should only
return a value if it is correct, and shouldn't be required to return something
even if it has nothing to
return or doesn't know what to return. Would returning "NA" be a solution for
that situation?
Thanks,
Arpad
==============================================================================
From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx] ;
On Behalf Of Ambrish Varma
Sent: Sunday, October 25, 2020 9:38 PM
To: 'IBIS-ATM' <ibis-macro@xxxxxxxxxxxxx>
Subject: [ibis-macro] PAM4 reserved parameter issue/question
Hi All,
We have an issue in the spec about the PAM4 reserved parameters where it
mentions that
"If the AMI Reserved Parameter Modulation lists "PAM4" (either as a Value or as
a List selection),
PAM4_UpperThreshold and PAM4_LowerThreshold are required for Rx AMI parameter
definition files."
If the AMI model want to return those values - it should be allowed to - but I
don't understand why it should be required to.
The EDA tool has the final analyzed waveform and can know the
PAM4_UpperThreshold and PAM4_LowerThreshold values.
This requirement is an unnecessary burden on the model maker. I am wondering if
that was our intention..?
Thanks,
Ambrish.
