[ibis-macro] Minutes from the 26 Mar 2013 ibis-atm meeting

  • From: Mike LaBonte <mike@xxxxxxxxxxx>
  • To: IBIS-ATM <ibis-macro@xxxxxxxxxxxxx>
  • Date: Tue, 26 Mar 2013 16:36:27 -0400

Minutes from the 26 Mar 2013 ibis-atm meeting are attached.

IBIS Macromodel Task Group

Meeting date: 26 Mar 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 Raghat
                              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


- None

Call for patent disclosure:

- None

Review of ARs:

- Arpad submit a BIRD combining BIRDs 116-118,129
  - Done, submitted to open forum BIRD 160

- Arpad try to apply BIRD 158 shortcut language to his BIRDs 116-118
  - In progress

- Walter write new BIRD for repeater/retimer pin keywords
  - In progress

New Discussion:

Interconnect report:
- MM: There was a meeting last week
  - The discussion was about EMD
  - This is not finished, a draft is available
  - Minutes have been posted except for last week

- Walter: We should discuss BIRD prioritization
  - We should focus on repeaters/retimers and the labels BIRD first
- Arpad: We have considerable work to finish the redriver/repeater BIRDs
  - BIRD 160 should be easier to finish
- Walter: I agree with Fangyi's redriver BIRD
  - BIRDs 131 and 156 should be simple
  - BIRDs 116-118, now 160 could have problems
  - EDA vendors need to implement some of these BIRDs for evaluation
  - Repeaters and redrivers are proven, the models exist
  - Those should go into IBIS 6.0
  - [External Model] and back-channel BIRDs will require more debate
- Bob: You have implemented 116-118?
- Walter: Yes, in development code
- Ambrish: We should be able to work on them in parallel
- Walter: There have been no example models for BIRDs 116-118 using IBIS-ISS
- Arpad: BIRD 158 should work
- Walter: I would prefer BIRD 160, but we have no example IBIS files
- Michael M: It is hard to vote on prioritization, we might  use approval voting
- Bob: We should first vote whether to include analog in 6.0
  - Or to delay the release schedule
  - If we want the analog BIRDs they should be reviewed thoroughly and 

- Walter showed a spreadsheet of open BIRDs
- Walter: We agreed to reject 159 and 144
- Ambrish: Agree, but 145 should be still on the table
- Walter: We should table 145, 122, and 125, and see what the interconnect 
group does
  - BIRDs 156 and 154 should go in 6.0
  - "RC1" "release candidate" BIRDs are controversial
  - They need to be tested with real models
  - SiSoft will help
  - Agree with Bob that the big debate is with analog modeling
- Arpad: Is 162 an override of 156?
- Walter: It adds jitter parameters to the redriver BIRD
  - I would like to discuss combining them with Fangyi

- Arpad: We should discuss BIRD 160
- Walter: I could prepare something to discuss labels

- Walter motioned have to repeaters/retimers and labels in IBIS 6.0
- Bob: It would be "considered for inclusion"
- Radek: I agree, but we should focus on what we have on the table
  - If the analog BIRDs can't go in 6.0 we should consider 5.2
- Michael M: We have BIRDs that have been tabled since 2010
- Ambrish: Agree we should have analog BIRDs next
- Radek: We also need to discuss impulse response
- Arpad: We have no BIRD for that yet
- There was no second to the motion

- Arpad: What is the spec numbering plan?
- Michael M: 5.2 would have been a cleanup
  - 6.0 is a major release, would require charging for a new parser
- Bob: There is a complication regarding parser development

- Ambrish: What is BIRD 161 on the list shown?
- Walter: It is a planned BIRD on shortcuts

- Arpad: What is the difference between 6.0 and RC1?
- Walter: RC1 means vendors have implemented in advance for testing

- Ambrish: We have discussed BIRD 122 quite a bit, it could be approved
- Walter: I changed my mind, it adds complication for IC vendors
- Arpad: We should reject 122 in favor of 158
- Ambrish: And 161 would be on the table too
- Arpad: BIRD 122 could be considered superseded by 158
- Walter made that change

- Michael M: What do we do with this list?
- Walter: We could ask to have some BIRDs rejected
- Arpad motioned to recommend rejection of the BIRDs at open forum
- Radek seconded
- There was no objection

- AR: Walter send BIRD priority spreadsheet to Mike for posting

Next meeting: 02 Apr 2013 12:00pm PT

Next agenda:
1) Task list item discussions

IBIS Interconnect SPICE Wish List:

1) Simulator directives

Other related posts: