[ibis-macro] Re: Enclosed is an ammendment to BIRD 122 (AMI Analog Model)
- From: <fangyi_rao@xxxxxxxxxxx>
- To: <wkatz@xxxxxxxxxx>, <ibis-macro@xxxxxxxxxxxxx>
- Date: Tue, 25 Jan 2011 12:19:27 -0700
Thanks, Walter. For my question #2 (parameter value selection mechanism) I
meant non-AMI parameters in the regular IBIS model.
Fangyi
From: Walter Katz [mailto:wkatz@xxxxxxxxxx]
Sent: Tuesday, January 25, 2011 11:14 AM
To: RAO,FANGYI (A-USA,ex1); ibis-macro@xxxxxxxxxxxxx
Subject: RE: [ibis-macro] Enclosed is an ammendment to BIRD 122 (AMI Analog
Model)
Fangyi,
1. Yes. As long as they are ISS element (which are LTI by definition).
2. Yes. One can either manually select the values of Cc, Rs, ..., or use
the Dependency Tables as defined in BIRD 123 to set Cc, Rs, ... based in
selection of model specific parameters (e.g. Tx_Strength (akd Tx_Swing) which
has an impact on both Vol, Voh, and Rs for example).
Walter
From: fangyi_rao@xxxxxxxxxxx [mailto:fangyi_rao@xxxxxxxxxxx]
Sent: Tuesday, January 25, 2011 2:07 PM
To: wkatz@xxxxxxxxxx; ibis-macro@xxxxxxxxxxxxx
Subject: RE: [ibis-macro] Enclosed is an ammendment to BIRD 122 (AMI Analog
Model)
Thanks, Walter. I'd like to add two more questions to the list:
1. Can the analog model consist of both lumped elements and S-parameters?
In SPICE simulation it's certainly allowed.
2. AMI provides a very flexible mechanism to set parameter values through
Format (List, Range, Steps, etc) so that user can configure the model in many
different parameter permutations. Can we extend that mechanism to IBIS analog
model parameters so usage of [Model Selector] can be avoided for different
settings?
Regards,
Fangyi
From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx]
On Behalf Of Walter Katz
Sent: Monday, January 24, 2011 7:20 AM
To: IBIS-ATM
Subject: [ibis-macro] Enclosed is an ammendment to BIRD 122 (AMI Analog Model)
All,
The enclosed document describes an addition to BIRD 122 that allows the IC
Vendor to define an ISS template to be used when generating the the Impulse
Response of a channel.
I accept that the following two questions need to be clarified, but they are
the same question whether the ISS subckt is specified using this method, or the
method proposed by Arpad in BIRDS 116-118.
1. When describing a driver, what's the exact nature of the signal
delivered to the die ports?
2. When describing a receiver, how, exactly, are the die-side ports
loaded and measured?
Walter
Walter Katz
wkatz@xxxxxxxxxx<mailto:wkatz@xxxxxxxxxx>
Phone 303.449-2308
Mobile 303.883-2120
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