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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, May 28, 2008
9 AM US Pacific Time

               Telephone     Bridge   Passcode
              916-356-2663      5     148-0866

Use the LiveMeeting Links in Outlook or the information below

        Meeting ID:	048bf414541b42ff9fefb16165347d46
	Entry Code:	Koj8SEbW9
	Location:	meet:sip:michael.mirmak@intel.com;gruu;opaque=app:conf:focus:id:048bf414541b42ff9fefb16165347d46%3Fconf-key=Koj8SEbW9

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

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Minutes from May 21:

Attendees:
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(* denotes present)
Agilent                    - Radek Biernacki*, John Moore, Ken Wong
Ansoft                     - Denis Soldo*
Cadence Design Systems     - Terry Jernberg*
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.   The schedule for the next meetings will be
weekly for at least the next month.  Michael will continue to send invitations
out by Microsoft Outlook* as well as over the mailing list.

The team summarized the discussions from the mailing list.  A format has
been proposed that would achieve both single-ended and mixed-mode data
support plus efficiently represent data.  A diagonal presentation is likely.
This proposal would not be sequential (as in the SCCij, SDCij, etc. notation
in fixed positions suggested by Agilent) but would be similar to Tao Su's
format without the vector relationships.  Single-ended data would still
be required.  A diagonal format would only be to show the ordering of ports,
not the relationship between the ports.

Open questions remain: how to represent mixed-mode impedances and whether Y and/or
Z parameters should be supported in mixed-mode.  The industrial need may
not exist and the transformations may require explicit presentation in
the specification.  Bob Ross has suggested a table format for impedance.

Michael will prepare specification text to match the proposals discussed
during the meeting and online.
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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