[ibis-macro] Minutes from the 13 Aug 2013 ibis-atm meeting

  • From: Mike LaBonte <mike@xxxxxxxxxxx>
  • To: ibis-macro@xxxxxxxxxxxxx
  • Date: Tue, 13 Aug 2013 17:05:30 -0400

Minutes from the 13 Aug 2013 ibis-atm meeting are attached.

Mike
IBIS Macromodel Task Group

Meeting date: 13 August 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 send updated BIRD 155.1 draft to Mike for posting.
  - Done

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

Interconnect Task Group report:

Arpad noted that there will be an interconnect meeting tomorrow,
not editorial.  Walter was hoping to discuss BIRD 125. Arpad asked if
BIRD 145 should be discussed in Tuesday meetings. BIRD 125 will still
be discussed on Wednesdays.


New Executable model change:
Arpad showed the IBIS 5.1 spec section 10.1. He asked if it should be
changed to say that DLLs now have 5 functions. Walter, Radek and Fangyi
agreed. There will be two more cases describing function combinations.
Although AMI_Resolve_Close is required if AMI_Resolve is present the list of
functions always required should have only Init and Close. Arpad said a BIRD
should be written. Bob noted it is section 10A in IBIS 5.1 but section 10.3
in IBIS 6.0. Walter said it can not go into 6.0 so we should wait for 6.0.
Fangyi offered to write the BIRD.


BIRD 155:
Bob said the IBIS 6.0 tables describing reserved parameters should list
Usage Dep.  Arpad showed BIRD 155.1. Walter said any parameter that can
be Info or Out can be Dep, agreeing with Bob.  Radek said the BIRD should
cover the table modifications.  Walter said that was editorial in nature,
does not have to be in the BIRD.  Bob felt the BIRD should state at least
the rule for this.  Radek suggested language to express this.  Bob said
the Out column in the spec tables might become Out/Dep to save space.
The list of parameters that can be Dep will be replaced with these rules.
Arpad noted he would like to have a vote on this next week.

Bob wondered if the IBIS 6.0 spec should have a new section for reserved
parameters.  Arpad preferred to focus on technical questions.

AR: Fangyi send updated BIRD 155.1 draft to Mike for posting.


BIRD 150:
Arpad said we had talked about having a vote on this with the intention of
rejecting it.


BIRD 147:
Arpad suggested that Ambrish might make 6.0 changes to BIRD 147 similar to
those that will be made to BIRD 155. Ambrish asked to have more discussion
on this BIRD.  Arpad asked if much change is required to rework the BIRD
for 6.0. Ambrish agreed.  Arpad suggested voting on this soon.


BIRD 128:
Radek felt this this does not propose a clean method. He noted that
Mohammad Bapi had offered to work on this, but that may not happen
soon. Arpad agreed that it was not good to change the operation of
an existing function argument, and hoped to hear more about Bapi's
ideas. Ambrish said we should not change the API lightly.

AR: Mike contact Bapi to start discussion of BIRD 128 with Arpad


Eye mask definition:
Arpad asked if there was interest in this still. Ambrish felt it would not
be very useful.  Mike said that both eye mask definitions and associations
between signals and definitions are required, but only the latter was
a good fit for IBIS.  Todd said we have done little work on how the eye
diagram is used to check results.  Arpad said that receiver sensitivity
produces a reasonable solution.  Arpad said this topic would be dropped
until someone else raises it.


BIRD 157:
Arpad asked to resume discussion of this.  Bob said it might be hard
for the parser to check this.  Arpad noted that this was first discussed
about 15 years ago.  Bob suggested a whole new IBIS spec might be needed
to address this.

-------------
Next meeting: 20 August 2013 12:00pm PT

-------------
IBIS Interconnect SPICE Wish List:

1) Simulator directives

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