[ibis-macro] Minutes from the 14 May 2013 ibis-atm meeting

From: Mike LaBonte <mike@xxxxxxxxxxx>
To: IBIS-ATM <ibis-macro@xxxxxxxxxxxxx>
Date: Tue, 21 May 2013 08:24:21 -0400

Minutes from the 14 May 2013 ibis-atm meeting are attached.I had to
drop off the call near the end, please let me know if something is
missing.

Mike

IBIS Macromodel Task Group

Meeting date: 14 May 2013

Members (asterisk for those attending):
Agilent:                    * Fangyi Rao
                              Radek Biernacki
Altera:                       David Banas
                              Julia Liu
                              Hazlina Ramly
Andrew Joy Consulting:        Andy Joy
ANSYS:                        Samuel Mertens
                            * Dan Dvorscak
                            * Curtis Clark
                              Steve Pytel
                              Luis Armenta
Arrow Electronics:            Ian Dodd
Cadence Design Systems:       Terry Jernberg
                            * Ambrish Varma
                              Feras Al-Hawari
                              Brad Brim
                              Kumar Keshavan
                              Ken Willis
Cavium Networks:              Johann Nittmann
Celsionix:                    Kellee Crisafulli
Cisco Systems:                Ashwin Vasudevan
                              Syed Huq
Ericsson:                     Anders Ekholm
IBM:                          Greg Edlund
Intel:                      * Michael Mirmak
Maxim Integrated Products:    Mahbubul Bari
                              Hassan Rafat
                              Ron Olisar
Mentor Graphics:            * John Angulo
                              Zhen Mu
                            * Arpad Muranyi
                              Vladimir Dmitriev-Zdorov
Micron Technology:            Randy Wolff
                              Justin Butterfield
NetLogic Microsystems:        Ryan Couts
Nokia-Siemens Networks:       Eckhard Lenski
QLogic Corp.                  James Zhou
SiSoft:                     * Walter Katz
                            * Todd Westerhoff
                              Doug Burns
                            * Mike LaBonte
Snowbush IP:                  Marcus Van Ierssel
ST Micro:                     Syed Sadeghi
Teraspeed Consulting Group:   Scott McMorrow
                            * Bob Ross
TI:                           Casey Morrison
                              Alfred Chong
Vitesse Semiconductor:        Eric Sweetman
Xilinx:                       Mustansir Fanaswalla
                              Ray Anderson

The meeting was led by Arpad Muranyi

------------------------------------------------------------------------
Opens:

- None

--------------------------
Call for patent disclosure:

- None

-------------
Review of ARs:

- Fangyi update BIRD 156 per task group feedback
  - Finished but not yet distributed

- Walter to write new BIRD for [Repeater/Retimer Pin] keywords.
  - in progress
  - In agreement with Fangyi


-------------
New Discussion:

Interconnect Task group report
- Discussed newly posted EMD draft 8
- Discussed early draft of what is now officially BIRD 161


Fangyi showed the updated BIRD 156:
- Fangyi: All "input" changed to "RX", "output" to "TX"
- Arpad: Where would this go into the spec?
- Fangyi: This would have its own chapter
- Arpad: That should be stated
- Fangyi: It is clarified that the flow is the same with or without GetWave 
- Ambrish: That seems redundant
- Todd: This is close enough
- Fangyi: Numbers are now used for each section
- Arpad: It should be clarified that the triangle symbol is for the whole
  model here, not just the analog portion
- Fangyi added language to clarify this
- More discussion about how the figures should look

- Bob: Can the redrivers be cascaded without channels?
- Todd: Being practical there will always be etch between redrivers

- Ambrish: In step 8 the analog waveform is the RX decision point?
  - We should be able to reference that term in the spec to explain what we mean
- Fangyi: A redriver may not have a decision point
  - I would rather call it the output
- Ambrish: It would be good to cross reference that spec section
- Todd read from the spec section
- Fangyi: We must avoid the term "decision point"
- Todd: We could refer back to section 10.2.3.2 step 8
  - There is not much risk in this
- Ambrish: What if people are not doing AMI simulation?
- Fangyi: We decided that Walter will clarify it in [Repeater Pin]
- Ambrish: They might try to simulate anyway
- Todd: The standard does not say what tools do with the information
- Bob: The spec will make it illegal for a redriver to not use AMI models
- Michael M: We can say this does not apply to legacy models
  - That allows us to define how those might be used later
- Ambrish: We need a line like that
- Bob: Should the [Model] have a keyword to say it is a redriver?
- Todd: The simulator must know:
  1 Whether two pins form a repeater
  2 Whether it is a redriver or retimer

- Arpad: I would like to see the statistical section
- Fangyi: This is one sentence
- Todd: We should discuss what "combined" means
- Arpad: "redriver can be calculated" does not sound right
- Ambrish: The full sentence says the "impulse of" can be ...

- Fangyi: A redundant section about flow was removed

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Next meeting: 21 May 2013 12:00pm PT

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IBIS Interconnect SPICE Wish List:

1) Simulator directives

[ibis-macro] Minutes from the 14 May 2013 ibis-atm meeting

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