IBIS Macromodel Task Group

Meeting date: 27 May 2008

Members (asterisk for those attending):
  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
* David Banas, Xilinx
  Donald Telian, consultant
  Doug White, Cisco Systems
  Essaid Bensoudane, ST Microelectronics
  Fangyi Rao, ???
  Ganesh Narayanaswamy, ST Micro
  Gang Kang, Sigrity
  Hemant Shah, Cadence Design Systems
  Ian Dodd, Agilent
  Joe Abler, IBM
* John Angulo, Mentor Graphics
  John Shields, Mentor Graphics
  Ken Willis, Cadence Design Systems
  Kumar
  Lance Wang, Cadence Design Systems
  Luis Boluna, Cisco
* Michael Mirmak, Intel Corp.
* Mike LaBonte, Cisco Systems
  Mike Steinberger, SiSoft
  Mustansir Fanaswalla, Xilinx
  Patrick O'Halloran, Tiburon Design Automation
  Paul Fernando, NCSU
  Radek Biernacki, Agilent (EESof)
* Randy Wolff, Micron Technology
  Ray Comeau, Cadence Design Systems
  Richard Mellitz, Intel
  Richard Ward, Texas Instruments
* Sam Chitwood, Sigrity
  Sanjeev Gupta, Agilent
  Shangli Wu, Cadence
* Sid Singh, Extreme Networks
  Stephen Scearce, Cisco Systems
  Steve Pytel, Ansoft
  Syed Huq, Cisco Systems
  Syed Sadeghi, ST Micro
* Terry Jernberg, Cadence Design Systems
* Todd Westerhoff, SiSoft
  Vikas Gupta, Xilinx
  Vuk Borich, Agilent
* Walter Katz, SiSoft
  Zhen Mu, Cadence


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Call for patent disclosure:

- No one declared a patent.

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Opens:

- SiSoft posted new kit BIRD107.2
  - Stimulus generator outputs analog waveform
  - Suitable for testing RX model standalone
  - TX GetWave() now applies equalization that Init() would have applied
- Todd will have more info next week

- Cadence kit has been updated with documentation clarifications.

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Review of ARs:

- Michael Mirmak list pros and cons of ICM and EMD
  - Presented today

- David Banas report Xilinx position on LTI assumption for SerDes
  - No update

- 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

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New Discussion:

Michael M presented on Pros and Cons of ICM:
- Work on EMD and HSPICE is TBD
- ICM has no parameters, can not pass in length, for example.
- Can't mix S-param and RLGC in one model, back to back
  - The need for this was simply not foreseen
  - Arpad: maybe this was prohibited because of swathing
- If we are going to have a full nodal topology description we should
  standardize on SPICE
  - ICM can not be used for this
  - We are left with EMD and SPICE
- Michael M: Do we need a full nodal representation?
  - Arpad: yes, to connect modules to interconnect
  - Michael M: Maybe this is mission creep if we are now modeling whole systems
- Michael M: Prefer to see ICM as part of the solution.

- Brad Brim: IBIS Pkg looks at 1 stage RLGC
  - Multiple stage could have arbitrary coupling among sections
  - Would help to have sections with different arrangements
    - Example, 2 branches that are coupled.
  - Michael M: This can be done.

- Arpad: We need to look at EMD and SPICE next
- Walter: The key part is not the netlist language, but what we are hooking up.
  - Which primitives do we need?
    - Poles and zeroes?
  - Michael M: EMD is a good starting point for discussion.

AR: Walter prepare list of primitives for discussion next week

Bob: should there be a DAC meeting about this?
- The DAC IBIS summit is in 2 weeks.
- This might fit into the summit agenda.
- Walter will not be there.

Next meeting: 03 Jun 2008 12:00pm PT

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