[IBIS] Open forum minutes (01/30/04)


Subject: [IBIS] Open forum minutes (01/30/04)
From: rrwolff@micron.com
Date: Thu Feb 05 2004 - 10:26:36 PST


DATE: 02/05/04

SUBJECT: January 30, 2004 EIA IBIS Open Forum Meeting Minutes

VOTING MEMBERS AND 2004 PARTICIPANTS
Ansoft Corporation (Eric Bracken)
Apple Computer (To Be Determined)
Applied Simulation Technology (Fred Balistreri)
Cadence Design Systems Lance Wang*
Cisco Systems Syed Huq*
Fairchild Semiconductor (Graham Connolly)
Hitachi ULSI Systems (Kazuyoshi Shoji)
Huawei Technologies (Jiang Xiang Zhong)
Intel Corporation Michael Mirmak*, Arpad Muranyi*
LSI Logic Frank Gasparik*
Matsushita (Panasonic) (Atsuji Ito)
Mentor Graphics Guy de Burgh*, Ian Dodd*
                               John Angulo*
Micron Technology Randy Wolff*
Molex Incorporated (Gus Panella)
Motorola (Rick Kingen)
National Semiconductor (Lee Sledjeski)
NEC Electric Corporation (Itsuki Yamada)
North East Systems Associates (Edward Sayre)
Philips Semiconductor (D.C. Sessions)
Samtec (Corey Kimble)
Siemens AG Eckhard Lenski*
Signal Integrity Software (Bob Haller)
Sigrity (Raymond Chen)
Sun Microsystems (Tim Coyle)
Synopsys (Hailong Wang)
Texas Instruments (Thomas Fisher)
Teraspeed Bob Ross*
Time Domain Analysis Systems (Dima Smolyansky)
Zuken (& Incases) (Michael Schaeder)

OTHER PARTICIPANTS IN 2004:
GEIA (Chris Denham)
Green Streak Programs Lynne Green*

In the list above, attendees at the meeting are indicated by *.
Principal members or other active members who have not attended are in
parentheses. Participants who no longer are in the organization are in
square brackets.

UPCOMING MEETINGS
The bridge numbers for future IBIS teleconferences are
as follows:

       Date Telephone Number Bridge # Passcode
 February 20, 2004 European SUMMIT, Paris, France NO PHONE BRIDGE
 February 20, 2004 1-916-356-2663 3 673-0282

All meetings are 8:00 AM to 9:55 AM US Pacific Time. Meeting agendas
are typically distributed seven days before each Open Forum. Minutes
are typically distributed within seven days of the corresponding
meeting.
When calling into the meeting, provide the bridge number and
passcode at the automated prompts. If asked by an operator, please
request to join the IBIS Open Forum hosted by Michael Mirmak.
For international dial-in numbers, please contact Michael Mirmak.

NOTE: "AR" = Action Required.

--------------------------------MINUTES---------------------------------

--
INTRODUCTIONS AND MEETING QUORUM
No new attendees.

CALL FOR PATENTS Michael Mirmak called for any patents or pending patents related to the IBIS Version 4.0, 4.1, or ICM 1.0 specifications. No patents were declared.

MEMBERSHIP UPDATE AND TREASURER'S REPORT Michael Mirmak reported that several organizations have already returned their invoices for 2004 membership. The Open Forum is expecting the 2003 annual financial statement in mid February. Michael also noted that Ansoft has been invoiced as a parser licensee.

REVIEW OF MINUTES AND ARS The January 9, 2003 meeting minutes were approved with no changes.

MISCELLANY/ANNOUNCEMENTS No additional announcements were made.

PRESS AND WEB PAGE UPDATES Syed Huq reported that both Micron and Samtec have been added to the IBIS web roster and their logos are now on the virtual poster. Syed also noted that the web site will be gradually updated to Macromedia DreamWeaver* over the next few months. This will enable support of Cascading Style Sheets, layering, and other advanced web features.

NEW MODELS AVAILABLE, LIBRARY UPDATE No new models received. Michael Mirmak took the AR to contact Roy Leventhal on the model library update schedule.

OPENS FOR NEW ISSUES No new issues.

MAILING LIST ADMINISTRATION John Angulo reported that the MyDoom worm had spread, causing a rise in message traffic on the IBIS request reflectors. No larger impact had been noted. In addition, John posted the text of a conversation involving an employee of Marvell who was having difficulty posting directly to the IBIS reflectors.

Bob Ross noted that the proper permissions on the EDA.org IBIS root directory have been restored. Randy Harr, EDA.org sysop and a technical supporter of IBIS web activities, has been invited to the IBIS Summit at DesignCon West.

INTERNATIONAL/EXTERNAL PROGRESS - JEDEC Activity Report Lynne Green reported that she will present to the JEDEX conference on April 16, 2004. The presentation will probably be made available to the public and will involve an introduction to IBIS and will also review modeling for high-speed designs. The JEDEX web site is:

http://www.jedex.org

- FSA Modeling Committee Lynne Green reported that she will present a talk on IBIS quality to the Fabless Semiconductor Association in San Jose on April 15, 2004.

The Fabless Semiconductor Association can be found at:

http://www.fsa.org

- Other Activities Bob Ross inquired as to whether the video of Arpad Muranyi's training slides had been made available on the IBIS web site. Michael Mirmak noted that no response had yet been received from the original training site sponsors. Michael accepted the AR to check with DC Sessions, the original organizer of the training class, on the availability of the video.

Lynne Green and Michael Mirmak reported on an invitation to participate in a VHDL-AMS conference in September. The conference will involve several different applications of VHDL-AMS modeling, of which electrical behavioral modeling is a part. The conference is to take place at the University of Lille, France.

DESIGNCON 2004 SUMMIT PLANNING Lynne Green reported that approximately 25 people had registered for the IBIS Summit with her, but that the IEC was reporting 50 prospective attendees. Bob Ross noted that three new signs will be added to the IBIS booth

EUROPEAN DATE SUMMIT PLANNING Bob Ross reported that ten presentations are already scheduled for the DATE summit. These include a discussion of ICEM and IBIS, IBIS model making with WinPro*, and board-level EMI prediction with IBIS. Eckhard Lenski will be talking about "IBIS Modeling, Benefits, and Limitations." Materials from the PCB Symposium on February 19 will not be shared with the IBIS Summit; however, the PCB Symposium will have several participants who are attending the IBIS Summit. Another announcement will be sent, and the agenda to the IBIS Summit will be sent out by February 13.

Cadence Design Systems, Mentor Graphics and Zuken are collaborating to sponsor the Summit, which will take place on Friday, February 20, 2004 in Paris. The summit will run from 9 AM to 2 PM Paris local time. Thanks again to Ralf Bruening of Zuken and to Eckhard Lenski of Siemens for arranging the summit.

OTHER SUMMITS Bob Ross noted that the annual DAC meeting, at which IBIS officer elections have taken place in the past, will be held in San Diego in June 2004. Additionally, a DesignCon conference will be held in Manchester, New Hampshire on the US East Coast in April 2004. Bob suggested that a summit might be held during this DesignCon in a similar fashion to the summit held in October 2003. For such a summit, the logistics associated with a booth may be more profitably applied toward a teleconference bridge. Some East Coast organizations may be interested in hosting the meeting. Michael accepted the AR to investigate this further and to contact the appropriate organizations.

Bob also noted that a DesignCon for Europe was being planned for October in Munich.

IBIS QUALITY COMMITTEE Bob Ross reported that meetings continue every two weeks, with meetings held on January 13 and January 27. A report on the committee's progress will be delivered at the DesignCon summit.

IBIS MODEL REVIEW COMMITTEE Lynne Green reported that no new models have been received by the committee since the last meeting.

S2IBIS3 Bob Ross reports no changes since the last meeting.

S2IBIS3 beta executables can be downloaded from:

http://www.ece.ncsu.edu/erl/ibis/s2ibis3/s2ibis3.htm

Feedback on the current beta version is appreciated and encouraged.

ICM SPECIFICATION AND PARSER STATUS Michael Mirmak again raised the issue of a specification change process for ICM, similar to the IBIS BIRD process. As no new suggestions for an appropriate name had been received, Michael announced that change requests for the ICM specification will be called IIRDs (ICM Issue Resolution Documents). An appropriate subdirectory and set of forms will be added to the IBIS web site to reflect the new procedure.

NEW ADMINISTRATIVE ISSUES No new issues.

IBIS VERSION 4.1 FINAL READING AND VOTE Michael Mirmak and Bob Ross reviewed the BIRDs covered by IBIS 4.1. These include 75.8, 77.2, 78.1, 80.1, 81.1, 82.2, 85.3 and 86.1. Additionally BIRD79 was rejected and BIRD74.6 was deferred until IBIS 5.0.

As has been done with previous specification votes, Michael Mirmak called for motions related to IBIS 4.1. Bob Ross moved to vote on approval of the draft specification as IBIS 4.1. The motion was seconded by John Angulo. Michael called for a vote, and the draft document was unanimously approved as IBIS 4.1. Bob Ross, Arpad Muranyi and Michael Mirmak accepted the ARs to update the IBIS web documents to reflect version 4.1's approval.

Bob noted that a parser discussion should begin at the next Open Forum meeting.

Version 4.1 is available in a variety of formats at:

http://www.eda.org/pub/ibis/ver4.1/

BIRD87: SERIES PIN MAPPING CLARIFICATIONS Arpad Muranyi introduced BIRD87, [Series Pin Mapping] Clarifications. Currently, the IBIS specification does not explicitly note that [Series Pin Mapping] may reference models under the [Model Selector] keyword. However, [Model Selector] does note that references to [Pin] and [Series Pin Mapping] are permitted. The BIRD is intended to be included in IBIS 4.2. No change to parser behavior is needed, as it already recognizes the proper links between [Series Pin Mapping] and [Model Selector].

BUG82: WAVEFORM MISMATCH ERROR FOR OPEN SOURCE/DRAIN John Angulo noted that Bob Haller of Signal Integrity Software had reported a BUG related to the I-V/V-T mismatch checking algorithm in the new 4.0.1 parser.

The problem appears when the I-V/V-T intercept is above the points in the [Pullup] or [Pulldown] tables. Incorrect data is read and extreme mismatches are noted by the parser. The error is more likely to appear for Open Drain or Open Source models. John mentioned that the BUG was originally reported in a beta version of the parser and a code fix has already been developed.

Bob Ross noted that the issue must be fixed in the next parser release, preferably in a 4.0.2 or similar version. John can make the fix, but the Open Forum participants agreed that a parser update announcement should be delayed for some time, so as not to distract from the 4.0.1 parser or the IBIS 4.1 specification announcement. Other fixes may also be identified in the near future.

The BUG report was classified as Moderate, with Medium priority. The BUG will be fixed in a future parser release.

NEW TECHNICAL ISSUES Bob Ross noted that he and Arpad Muranyi were engaged in a lengthy discussion on the proper interpretation of [Driver Schedule] data. The highlights of this discussion and related ad hoc presentations will be featured at the DesignCon IBIS Summit.

NEXT MEETING The next Open Forum teleconference has been scheduled for February 20, 2004 from 8:00 AM to 10:00 AM US Pacific Standard Time. A vote regarding the approval of BIRD87 is scheduled.

The next IBIS Summit will take place at DATE 2004 on February 20, 2004 in Paris, France.

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

NOTES

IBIS CHAIR: Michael Mirmak (916) 356-4261, Fax: (916) 377-1046 michael.mirmak@intel.com Senior Analog Engineer, Intel Corporation M/S FM6-45 1900 Prairie City Rd. Folsom, CA 95630

VICE CHAIR: Lynne Green (425) 788-0412, Fax (425) 788-4289 lgreen22@mindspring.com Green Streak Programs 320 120th Ave NE, Suite B-103, Bellevue, WA 98005-3016

SECRETARY: Randy Wolff (208) 363-1764, Fax: (208) 368-3475 rrwolff@micron.com Simulation Engineer, Micron Technology, Inc. 8000 S. Federal Way Mail Stop: 1-711 Boise, ID 83707-0006 LIBRARIAN: Roy Leventhal (847) 590-9398 roy.leventhal@ieee.org Consultant, Leventhal Design and Communications 1924 North Burke Drive Arlington Heights, Illinois 60004

WEBMASTER: Syed Huq (408) 525-3399, Fax: (408) 526-5504 shuq@cisco.com Manager, Hardware Engineering, Cisco Systems 170 West Tasman Drive San Jose, CA 95134-1706

POSTMASTER: John Angulo (425) 497-5077, Fax: (425) 881-1008 John_angulo@mentor.com Development Engineer, Mentor Graphics 14715 N.E. 95th Street, Suite 200 Redmond, WA 98052

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