======================================================================
IBIS INTERCONNECT MODELING AD HOC TASK GROUP MEETING MINUTES AND AGENDA

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

Mailing list: ibis-interconn@freelists.org

======================================================================
Next Meeting
Wednesday, June 25, 2008
9 AM US Pacific Time

               Telephone     Bridge   Passcode
              916-356-2663     5      988-5555

Use the LiveMeeting Links in Outlook or the information below:

	Meeting ID:	9a18c6926d9e49f88cf377a0bc86b49e
	Entry Code:	h3KZqQEyM3U
	Location:	meet:sip:michael.mirmak@intel.com;gruu;opaque=app:conf:focus:id:9a18c6926d9e49f88cf377a0bc86b49e%3Fconf-key=h3KZqQEyM3U

Agenda:
- Call for patents
- Opens
- Touchstone 2.0/3.0 Updated Text, Continued
  * Mixed-mode support
  * Wrapper or no?

======================================================================

Minutes from June 18:

Attendees:
----------
(* 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, Brad Brim*
SiSoft                     - Walter Katz*
Teraspeed Consulting Group - Bob Ross*

========================================================================
No patents were announced.   

Discussion of the informal mixed-mode rules continued.  Team members clarified
that the proposed arbitrary ordering of mixed-mode and single-ended
relationships still requires that *all* ports be included and described 
in *some* relationship (whether C, D or single-ended).  Both Vladimir
Dmitriev-Zdorov and Walter Katz commented that the new format is
not per se "reduced" and any sparse matrix representation should be
defined separately.

Radek also reiterated that both C and D components are required for any
mixed-mode port relationships.  A brief discussion also occurred about
"passivity" as a synonym for PCB, connector and cable interconnect applications. 

Bob Ross raised additional concerns, based on his IBIS Summit presentation,
regarding the naming conventions used to express mixed-mode relationships
(e.g., SDD11, etc.).  The naming in the mixed-mode proposal may need to be
adjusted to match this popular industry approach.  Brad Brim noted that an 
additional column was used in previous proposals to give particular 
relationships a name.

Work to continue in the next meeting.

========================================================================

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