[ibis-macro] Re: Enclosed is an ammendment to BIRD 122 (AMI Analog Model)
- From: "Walter Katz" <wkatz@xxxxxxxxxx>
- To: <fangyi_rao@xxxxxxxxxxx>, <ibis-macro@xxxxxxxxxxxxx>
- Date: Tue, 25 Jan 2011 14:14:14 -0500 (EST)
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
Phone 303.449-2308
Mobile 303.883-2120
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