[ibis-macro] Minutes from the 9 Mar 2010 ibis-atm meeting

  • From: "Mike LaBonte (milabont)" <milabont@xxxxxxxxx>
  • To: <ibis-macro@xxxxxxxxxxxxx>
  • Date: Tue, 16 Mar 2010 13:34:06 -0500

Minutes from the 9 Mar 2010 ibis-atm meeting are attached.

Mike
IBIS Macromodel Task Group

Meeting date: 9 March 2010

Members (asterisk for those attending):
  Adge Hawes, IBM
* Ambrish Varma, Cadence Design Systems
* Anders Ekholm, Ericsson
* Arpad Muranyi, Mentor Graphics Corp.
  Barry Katz, SiSoft
* Bob Ross, Teraspeed Consulting Group
  Brad Brim, Sigrity
  Brad Griffin, Cadence Design Systems
  Chris Herrick, Ansoft
  Chris McGrath, Synopsys
  Danil Kirsanov, Ansoft
  David Banas, Xilinx
  Deepak Ramaswany, Ansoft
  Donald Telian, consultant
  Doug White, Cisco Systems
  Eckhard Lenski, Nokia-Siemens Networks
  Eckhard Miersch, Sigrity
  Essaid Bensoudane, ST Microelectronics
* Fangyi Rao, Agilent
  Ganesh Narayanaswamy, ST Micro
  Gang Kang, Sigrity
  Hemant Shah, Cadence Design Systems
  Ian Dodd, consultant
  Jerry Chuang, Xilinx
  Joe Abler, IBM
  John Angulo, Mentor Graphics
  John Shields, Mentor Graphics
* Ken Willis, Sigrity
  Kumar Keshavan, Sigrity
  Lance Wang, Cadence Design Systems
  Luis Boluna, Cisco Systems
  Michael Mirmak, Intel Corp.
* Mike LaBonte, Cisco Systems
  Mike Steinberger, SiSoft
  Mustansir Fanaswalla, Xilinx
  Patrick O'Halloran, Tiburon Design Automation
  Paul Fernando, NCSU
  Pavani Jella, TI
  Radek Biernacki, Agilent (EESof)
* Randy Wolff, Micron Technology
  Ray Komow, Cadence Design Systems
  Richard Mellitz, Intel
  Richard Ward, Texas Instruments
  Samuel Mertens, Ansoft
  Sam Chitwood, Sigrity
  Sanjeev Gupta, Agilent
  Shangli Wu, Cadence Design Systems
  Sid Singh, Extreme Networks
  Stephen Scearce, Cisco Systems
  Steve Kaufer, Mentor Graphics
  Steve Pytel, Ansoft
  Syed Huq, Cisco Systems
  Syed Sadeghi, ST Micro
  Ted Mido, Synopsys
  Terry Jernberg, Cadence Design Systems
* Todd Westerhoff, SiSoft
  Vladimir Dmitriev-Zdorov, Mentor Graphics
  Vikas Gupta, Xilinx
  Vuk Borich, Agilent
* Walter Katz, SiSoft
* Wenyi Jin, LSI Logic
  Zhen Mu, Mentor Graphics

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

- Wenyi Jin from LSI Logic is new to the group
  - Works in system design

- Mike will repost minutes files that have incorrect dates.


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

- No one declared a patent.

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

- Arpad: Write a clarification BIRD to discuss accuracy issues related to the 
  various AMI clock_tick algorithms in an IBIS-AMI DLL
  - TBD

- Todd: Update the BIRD for IBIS S-parameter box based on feedback from 
discussion
  - Todd: This is folded into Walter's proposal

- Arpad:  Write parameter passing syntax proposal (BIRD draft)
          for *-AMS models in IBIS that is consistent with the
          parameter passing syntax of the AMI models
          - TBD

- TBD:    Propose a parameter passing syntax for the SPICE
          - [External ...] also?
          - TBD

- Arpad:  Review the documentation (annotation) in the macro libraries.
          - Deferred until a demand arises or we have nothing else to do

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

Bob: Considering Michael Mirmak to edit the AMI Improvements BIRD:
- He should have a fresh view of the work, having been out of the meetings
- Currently he is in Taiwan until the end of this month
- He has a talent for clarity
- There should be an editorial group including Walter and others
- Todd: I would like to join the editorial group
- Arpad: Is this a paid job?
- Bob: No
- Walter:
  - Would like to follow these steps:
    - 1 Have a 1 meeting final review to resolve open issues (2 or 3)
    - 2 Brainstorm (this group) to decide on document restructuring
      - We have restricted to the previous structure so far
      - Do we want an intro to serdes modeling?
        - What we have is a reference manual
    - 3 Editing group produces the document
  - Walter: There are two parts to the BIRD:
    - syntax
    - reserved parameters
  - We also need a jitter BIRD and an analog amendment
  - We may be one month away from editing
- Bob: The editing group might propose restructuring
  - We need to move the IBIS portion from the middle of AMI
  - There might be some new topics too
    - A compatibility section, for example
  - We don't have an outline yet
  - The IBIS committee should not have to deal with editorial issues
  - We need to review the whole document with any new parameters in it
- Walter: Should this committee create the BIRD?
- Bob: That would be preferable
  - Michael M should head the editorial group
- Walter: The editorial group might decide to put it in a non-text format
  - It might have graphics
  - It may not be compatible with the IBIS spec
- Bob: I would not favor that
- Arpad: Would it be an independent spec?
- Walter: That would be better
  - We should not have put AMI into the IBIS spec 2 years ago
- Todd: IBIS has caused some difficulty by being restricted to text only
- Arpad: Other specs like VHDL have PDF formats
  - We could have an independent spec referenced by IBIS
- Randy: People mostly look at our PDF IBIS spec file anyway
- Arpad: We had decided to make the IBIS spec parseable
  - The IBIS comment character leads most lines, for example
- Bob: We could reduce section 6c to IBIS format
  - The rest could be in a separate document
  - We are not ready to rework all of IBIS
  - An ANSI standard submission should not be all jumbled up
  - We just want to get this AMI document out
- Walter: We should have a state-of-the-art AMI spec
- Mike: The current IBIS spec is an MSWord document
  - Can a multi-file document be an ANSI standard?
- Bob: We should be able to convert the editing group product to text
- John: The issue may be that the editing group product may be hard to
  convert to text
- Arpad: The comment character on every line is an issue
- Bob: This should be done for the whole spec if at all
- Todd: Are we moving away from having a .txt version of the spec?
- Arpad: The .txt was only there to be parseable
- Mike: The current .txt file has 436 errors and 57 warnings in IBISCHK5
- Todd: We saddled ourselves with a very large spec
  - We need a strategy to evolve it more rapidly
  - We could reference a separate document
  - The AMI syntax is very different anyway
  - We should also deprecate some language features, like HTML does
- Walter: Agree, some keywords can go
- Bob: Are people expected to render things obsolete with the new release?
- Walter: Models written to 5.0 standards will still work
  - Only minor editing or parser tolerance is needed
- Arpad: We should write a BIRD to move most content to a new document
- Walter: There would be 2 documents, voted on together
- Bob: We could take section 10 out of IBIS
  - That would put the process on hold
  - There would be nothing to submit
- Walter: I will prepare a new chapter 1 Introduction
- Bob: It needs an outline
  - The Touchstone spec gives us a template
- Walter: A tech writer can do that
  - We should brainstorm next week

Next meeting: 16 Mar 2009 12:00pm PT

--------

IBIS Interconnect SPICE Wish List:

1) Simulator directives

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  • » [ibis-macro] Minutes from the 9 Mar 2010 ibis-atm meeting - Mike LaBonte (milabont)