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IBIS INTERCONNECT MODELING AD HOC TASK GROUP MEETING MINUTES AND AGENDA

http://www.eda.org/ibis/adhoc/interconnect/

Mailing list: ibis-interconn@freelists.org

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Next Meeting
Wednesday, June 4, 2008
9 AM US Pacific Time

               Telephone     Bridge   Passcode
              916-356-2663      5     721-4349

Use the LiveMeeting Links in Outlook or the information below:

	Meeting ID:	364e7c772fc1440b8a7a58a0d4cd09e8
	Entry Code:	5J4u04y7I8m
	Location:	meet:sip:michael.mirmak@intel.com;gruu;opaque=app:conf:focus:id:364e7c772fc1440b8a7a58a0d4cd09e8%3Fconf-key=5J4u04y7I8m

Agenda:
- Call for patents
- Opens
- Touchstone 2.0/3.0 Updated Text, Continued
  * Mixed-mode support

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Minutes from May 28:

Attendees:
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(* denotes present)
Agilent                    - Radek Biernacki*, John Moore, Ken Wong
Ansoft                     - Denis Soldo*
Cadence Design Systems     - Terry Jernberg*, Brad Griffin*
Green Streak Programs      - Lynne Green
Hewlett-Packard            - Rob Elliott
Intel                      - Michael Mirmak*
Mentor Graphics Corp.      - John Angulo*, Vladimir Dmitriev-Zdorov*
Micron Technology          - Randy Wolff*
Sigrity                    - Sam Chitwood, Raymond Y. Chen, Tao Su
SiSoft                     - Walter Katz
Teraspeed Consulting Group - Bob Ross*

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No patents were announced.   

Michael reviewed his summary of the on-line discussion of mixed-mode
formats, plus a preliminary list of rules and an example; the presentation
will be revised "live" during the weekly meetings.  Participants
commented that the example text does not imply any particular diagram
or pictoral representation.  Further, the picture given in the presentation
does not correspond to the most clear arrangements of ports to illustrate
the example.  Further, the use of the letter "x" may be misleading.

The matrices themselves are arranged according to the table of ports
spelled out before the matrix data in the file; the table is both a row
vector and a column vector, determining the placement of the elements in
the resulting matrix.  

Both Brad and Radek suggested that single-ended data might not be required 
in Touchstone 2.0 files; mixed-mode data alone would be sufficient.  Bob
agreed, stating that only one matrix -- single-ended or mixed-mode --
should be required in the file.

The discussion will continue with additional rules in the next meeting.

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Team Objectives:
1) complete ICM-IBIS linking BIRD and any associated changes to the 
   ICM specification
2) update the ICM specification, if needed, to clarify the mapping of 
   ICM nodes to S-parameter ports
3) complete a specification for "Touchstone Plus" or similar 
   industry-standard definition for Touchstone-like files, to include 
   complex impedance references, removal of limits on the maximum number
   of ports and per-port impedance references