[ibis-macro] Re: IBIS Summit
- From: Ambrish Varma <ambrishv@xxxxxxxxxxx>
- To: "'IBIS-ATM'" <ibis-macro@xxxxxxxxxxxxx>
- Date: Wed, 8 Feb 2012 09:04:27 -0800
Ken,
If my understanding is correct, and correct me if I am wrong Walter, Sisoft
would 'like' to include shortcut to these four models - but is ok with the
BIRDs as they stand right now and would supply and publish subckts with the
.ibs file for the much discussed 'canned' circuits that would work with BIRD
116.
That is my takeaway from the IBIS summit and yesterday's ATM call. Again,
correct me if I wrong.
Thanks,
Ambrish.
[cid:image002.gif@01CCE659.CE6587E0]
Ambrish Varma | Member of Consulting Staff
P: 978.262.6431 www.cadence.com<http://www.cadence.com>
________________________________
From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx]
On Behalf Of Ken Willis
Sent: Tuesday, February 07, 2012 10:13 PM
To: wkatz@xxxxxxxxxx; 'IBIS-ATM'
Subject: [ibis-macro] Re: IBIS Summit
Hi Walter,
Unfortunately, I had to drop off the call today after about 45 minutes, right
when you were getting to the end of the presentation. I was with you until
slide 19:
- SiSoft would like BIRDs 116 and 118 to include a shortcut syntax for these
four models
"Shortcut syntax" brings us right back to "canned circuit models", which I
still don't agree with.
Putting these models into the spec as examples in standard syntax makes perfect
sense to me. I think we should move forward with that.
Thanks,
Ken Willis
Sigrity, Inc.
860-871-7070
kwillis@xxxxxxxxxxx<mailto:kwillis@xxxxxxxxxxx>
________________________________
From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx]
On Behalf Of Walter Katz
Sent: Monday, February 06, 2012 12:11 PM
To: IBIS-ATM
Subject: [ibis-macro] IBIS Summit
All,
Here are my take-aways as it affects the IBIS-ATM committee.
A Tale of Two Parsers, Bob Ross (Teraspeed)
The IBIS 5.1 .ami parser will only check IBIS 5.1 rules (with some special code
for AMI_Version, and Use_Init_Output).
The IBIS 5.1 .ibs parser will only check IBIS 5.1 rules. To me, this means that
if a .ibs file is Version 3.2, it will not generate any warnings or errors for
IBIS 5.1 keywords.
A System Developer's Perspective on AMI, Greg Edlund (IBM)
This presentation, and the DesignCon Tutorial (8-MP2 AMI Models: How to tell a
Peach form a Lemon) will be an excellent resource for the IBIS Quality
Committee.
Using Function Programming Languages to IBIS AMI Modeling, David Banas (Altera)
If you close your eyes, you do not have to imagine any changes to the IBIS
Specification to reflect AMI DLLs written in Haskell.
Case Study: IBM 15 Gb IBIS-AMI Model using Dependency Tables, Adge Hawes (IBM),
Walter Katz (SiSoft)
An excellent example of the significance of BIRD 150 (Dependency BIRD) to AMI
Model developers.
Efficient End-to-end Simulations of 25G Optical Links, Sanjeev Gupta (Avago),
Fangyi Rao (Agilent)
The AMI optical link model used Repeaters as described in BIRD 131, with some
possible extensions. SiSoft requested that Fangyi describe any enhancement that
are required to BIRD 131 in order for SiSoft to run these models.
How did we get here, and how should we go on?, Arpad Muranyi (Mentor)
An excellent presentation that accurately describes the status of BIRDs 122,
116, 117, 118, 129, 144 and 145. Based on discussions I had earlier in the week
with Fangyi, Vladimir, Ambrish and Kumar, I re-affirmed that SiSoft is is full
support of BIRD 117 and 118, with details in my following presentation.
Ad Hoc Discussion: BIRD116 and "Intrinsic Models", Walter Katz (SiSoft)
I verbally gave the enclosed presentation, which describes the four BIRD 122
Analog models converted to BIRDs 116 and aa8 [External Models]. In summary,
when IBIS 5.2 (BIRDs 116 and 118) is approved, SiSoft will produce AMI models
using this [External Model] format. I believe the only controversial issue
regarding these four BIRD 122 Analog models is the requirement of a termination
resistor for the AMI_Touchstone_Rx. I have added termination resistors with a
value RTref (default 50), which satisfy the needs for Channel Analog simulators
that use S-Parameter arithmetic or a SPICE step response simulation to generate
the Channel Impulse Response. When BIRDs 116 and 118 are approved by the Open
Forum, SiSoft will publish to IBIS these four [External Model]s.
Walter
Walter Katz
wkatz@xxxxxxxxxx<mailto:wkatz@xxxxxxxxxx>
Phone 303.449-2308
Mobile 720.333-1107
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