[ibis-macro] Minutes from the 05 May 2009 ibis-atm meeting
- From: "Mike LaBonte (milabont)" <milabont@xxxxxxxxx>
- To: "IBIS-ATM" <ibis-macro@xxxxxxxxxxxxx>
- Date: Tue, 12 May 2009 14:55:41 -0400
Minutes from the 05 May 2009 ibis-atm meeting are attached.
Mike
IBIS Macromodel Task Group
Meeting date: 05 May 2009
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 McGrath, Synopsys
David Banas, Xilinx
Deepak Ramaswany, Ansoft
Donald Telian, consultant
Doug White, Cisco Systems
Eckhard Lenski, Nokia-Siemens Networks
Essaid Bensoudane, ST Microelectronics
* Fangyi Rao, Agilent
Ganesh Narayanaswamy, ST Micro
Gang Kang, Sigrity
Hemant Shah, Cadence Design Systems
Ian Dodd, Agilent
Jerry Chuang, Xilinx
Joe Abler, IBM
* John Angulo, Mentor Graphics
John Shields, Mentor Graphics
Ken Willis, Cadence Design Systems
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 Comeau, 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 Pytel, Ansoft
Syed Huq, Cisco Systems
Syed Sadeghi, ST Micro
Ted Mido, Synopsys
Terry Jernberg, Cadence Design Systems
Todd Westerhoff, SiSoft
Vladimir Dmitriev-Zdorov
Vikas Gupta, Xilinx
Vuk Borich, Agilent
* Walter Katz, SiSoft
Zhen Mu, Cadence Design Systems
------------------------------------------------------------------------
Opens:
Arpad: The AMI TX model example calls a function for tree param structures
- Is that code freely available from SiSoft?
- Walter: Will find out
- Arpad: The disclaimer indicates it is free
--------------------------
Call for patent disclosure:
- No one declared a patent.
-------------
Review of ARs:
- Everyone send feedback to Walter
- Todd: Write IBIS s-param BIRD
- Still working on it
- 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:
Arpad: Can AMI handle the new params we will need?
- Walter: Can be handled with no changes
- There should be an opportunity to make them reserved parameters
Michael M summarized the last meeting:
- Two main points:
- We need to clarify the phases for producing the specification
- We need to choose an editor
- Walter: Agree
- Need to start by agreeing on the element parameter sets
- Then we can decide how much depth for each element
- Arpad: Has any more feedback been received?
- Walter: There were technical questions from last week, not sure what
- Walter: We should go through it element by element
Walter showed the IBIS-IS document:
- Resistor
- Walter: There are naming rules for instances, nodes, and values
- Radek: Do we want to discuss syntax details now?
- Arpad: That would sidetrack us too much
- Walter: We don't have the whole list to go through now anyway
- Radek: We discussed requiring the R=
- Walter: We had decided to make this HSPICE compatible
- This is a fundamental decision
- Bob: We could have a vote
- Arpad: We will go with our initial position
- Bob: Are expressions supported for param values?
- All it says is "value"
- Walter: What you see is character-by-character from the HSPICE manual
- We will have that discussion later
- Arpad: We could drop "nominal"
- Steve: Can we have params with multiple values like 3 file names?
- Walter: Multiple include files?
- Steve: Yes, would like to include different typ/min/max files
- Tools could use a pre-processor
- Walter: We are creating a subset of HSPICE, not going beyond
- Arpad: We had discussed adding non-HSPICE concepts
- We might want to keep a wish list
- We said we did not want to specify simulator directives
- Steve: These would be valuable
- Arpad: We should maintain a wishlist in the minutes
- Capacitors:
- Mutual Inductors:
- Walter: Inductors should have been next
- Bob: This shows coupling as optional
- Mike: Res and Cap should use the same format
- Walter: Coupling truly is optional
- It should be "[K=] coupling"
- Arpad: We should start a list of HSPICE questions
- Walter: The comments here will serve
- Bob: Berkeley SPICE does not support negative K for reverse coupling
- Change to "magnitude > 0"
- S element:
- Radek: I think we decided not to have mixed mode
- Walter: We may not have reached that conclusion
- This would mean TS1 files are not supported if it is mixed mode
- Walter deleted MIXEDMODE and DATATYPE params
- Walter: There is more detail on S element because it is useful to have
- Walter added TSTONEFILE2= param
- Bob: We may change our minds about that
- Testing in HSPICE would not work
- Walter deleted TSTONEFILE2
- Radek: There should be limits on support for TS1
- W element:
- Walter: Found in 2 different manuals
- One shorter than the other
- The short one looks wrong, has RLGCFILE
- Radek: Why is RLGCFILE a problem?
- Walter: HSPICE has deprecated this, it is messy
- Radek: TABLEMODEL is pretty messy, but we did not drop it
- RLGCFILE is definitely used
- Arpad: The file format causes problems
We can move on to dependent sources next
AR: Mike L add wishlist to minutes
Next meeting: 12 May 2009 12:00pm PT
--------
IBIS Interconnect SPICE Wish List:
1) Simulator directives
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