IBIS Macromodel Task Group

Meeting date: 16 September 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, Agilent
  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 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 Comeau, Cadence Design Systems
  Richard Mellitz, Intel
  Richard Ward, Texas Instruments
  Sam Chitwood, Sigrity
  Sanjeev Gupta, Agilent
  Shangli Wu, Cadence Design Systems
  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 Design Systems


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Opens:

- Review Walter's document.

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Call for patent disclosure:

- No one declared a patent.


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Review of ARs:

- 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:

1. Finalize the IBIS-SPICE document draft to be sent to Synopsys.

- Michael: Synopsys is not available for discussion for a couple of weeks. 
   - Would like them to join this meeting or discuss offline.
   - Showed the document IBIS-Interconnect-Spice-mm.doc. 
   - He added a preamble to explain the scope of the proposal.  
   - Arpad: We might want to support encryption such as will be defined by 
      the P1735 standard.  

- Michael: The document intentionally does not list a vendor specific SPICE 
   in the assumptions section.  
   - "Frequency-domain network parameters" was added to the scope section. 
   - Radek: The scope should not limit the intended use of the models.  
    
- Arpad: Don Telian when working for Cadence wanted to donate K-SPICE.  
   - Should we approach Cadence about a donation of K-SPICE again?  
   - K-SPICE may have too many non-standard features in the controlled sources. 
   - Walter: We should approach Synopsys first before contacting Cadence.
   
- Michael: In the S-element section, should we include the Zo value?  
   - Walter: Thought the value was already in the Touchstone file.  
   - Michael: The parameter could be a check or to force a conversion from 
       one impedance to another.  
   - Radek: The value should come from the Touchstone file.  
   - Michael: We'll have to study that more.  Also, only S and Y are mentioned.  

- Michael: No B-element is included.  
   - Walter: There is a shunt element which is an independent source, but 
       it is the only one.  We don't want any other independent elements.

- Arpad: What is the next step?
   - Michael: He will clean up the document and discuss next week.
  
2. Walter showed changes to last week's presentation "Block Diagram View of EMD."

- Bob: On page 1, what are the black arrows representing?
   - Walter: These are direct connections between blocks.
   - Bob: Can an EMD file be a module consisting of modules?
   - Walter: Yes, it can be used to wrap up an entire system. 
       EMDs can be nested.
	
- Arpad: Can we post this document now?
   - Walter: He will send it to Mike LaBonte.
	
3. Agenda for next week:
	Will review Michael's document changes.


Next meeting: 23 September 2008 12:00pm PT

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