DATE: 4/2/01 SUBJECT: 3/30/01 EIA IBIS Open Forum Meeting Minutes VOTING MEMBERS AND 2001 PARTICIPANTS LIST: 3Com (& CommWorks) Roy Leventhal* Agilent (Mark Chang) Ansoft Corporation (Eric Bracken) Apple Computer John Figueroa Applied Simulation Technology Raj Raghuram, Norio Matsui, Fred Balistreri Avanti (Chen Hongyu) Brocade Communications Robert Badal Cadence Design Ian Dodd, Patrick Dos Santos, Heiko Dudek Cisco Systems Syed Huq, Lungfu Chen Compaq Peter LaFlamme, Ron Bellomio, Quang Dam, Bill Ham* Cypress (Rajesh Manapat) EMC Corporation Brian Arsenault, Jinhua Chen Fairchild Semiconductor Adam Tambone IBM Michael Cohen, Greg Edlund, Wes Martin, Yeon-Chang Hahm, Bill DeVey, Pravin Patel* Innoveda (& HyperLynx) Guy de Burgh, John Angulo, Cary Mandel Intel Corporation Stephen Peters*, Arpad Muranyi*, Dave Lorang, Michael Mirmak, Qinglun Chen, Will Hobbs LSI Logic Larry Barnes* Mentor Graphics Bob Ross*, Tom Dagostino, Chris Reid, Mike Donnelly, Hazem Hegazy, Tony Dunbar, Griff Derryberry, Dan Lake, Sherif Hammad, Mohammed Korany, Weston Beal, Chris Swaim, Ali Samii, Eric Ronger, Karine Loudet Micron Technology Randy Wolff, Yong Phan Mitsubishi (Tam (Tom) Cao) Molex Incorporated Gus Panella, Brian O'Malley Motorola (Ron Werner) National Semiconductor Milt Schwartz* Nortel Networks Calvin Trowell North East Systems Associates Edward Sayre Philips Semiconductor Zack Ciccone, Rob Mataheroe Quantic EMC (Mike Ventham) Robinson-Nugent, Inc. (Alexander Barr) Siemens (& Automotive) AG Bernhard Unger, Helmut Katzier, Katja Koller, Wolfram Meyer, Eckhard Lenski, Gerald Bannert, Burkhard Muller, Christian Marot, Manfred Maurer, Amir Motamedi, Hans Pichlmaier Signal Integrity Software Douglas Burns, Barry Katz, Walter Katz SiQual Scott McMorrow, Rob Hinz, Bernard Voss, Chris Brewster Texas Instruments Thomas Fisher, Stephen Nolan, Ramzi Ammar, Jean Claude Perrin* Time Domain Analysis Systems Dima Smolyansky, Steve Corey Tyco Electronics (Russell Moser) Via Technologies (Weber Chuang) Zuken (& Incases) John Berrie OTHER PARTICIPANTS IN 2001: Actel Corporation Silvia Montoya Acuson Kim Helliwell AMCC Jeff Smith ASIS Ltd David Wright BMW Friedrich Hasinger Cereva Networks Bob Haller EADS Airbus Industry Claude Huet (Aerospatiale) EFM Ekkehard Miersch, Horle Raines EIA Cecilia Fleming* FCI Sercu Stefaan Foundary Networks Bertram Chan Framatom Conectors Danny Morlion Fraunhofer Institute Mariusz Faferko, Peter Kralicek Reliability and Integration Fujitsu Ltd Tadashi Arai, Takeshi Murakami Heidelberger Druchmaschinen AG Wolfgang Kleinfeldt Huawei Technologies Rachild Chen Hyundai Electronics Jongho Kang Infineon Technologies Christian Sporrer Intrinsix Corporation Steven Chin National Institute of Applied Etienne Sicard Science (INSA) Nokia Tapani von Ravner, Mika Castren, Janne Uusitalo Oak Technology Darmin Jin Plexus Technology Group Joseph Socha Sintecs Hans Klos STMicroelectronics Peter Hirt, Fabrice Boissieres Sun Adrian Udenze Xilinx Susan Wu Independent, Consultant Al Davis* 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 Bridge Number Reservation # Passcode April 20, 2001 (916) 356-9200 2-524674 3881934 All meetings are 8:00 AM to 9:55 AM Pacific Time. We try to have agendas out 7 days before each Open Forum, and meeting minutes out within 7 days after. When you call into the meeting, ask for the IBIS Open Forum hosted by Will Hobbs and give the reservation number and passcode. NOTE: "AR" = Action Required. -------------------------------- MINUTES ------------------------------------- INTRODUCTIONS AND MEETING QUORUM Bill Ham is an interconnect architect at Compaq. He has a long term interest in modeling and has been involved with the t10 committee on SCSI issues and on the t11 committee on fiber channel issues. Bill is interested in common methodologies and in launch signals that vary with the data pattern. MEMBERSHIP UPDATE AND TREASURER'S REPORT Bob Ross is expecting the final year 2000 financial report per a conversation with Cecilia Fleming. Also, Bob estimates that we have about 25 paid members this year. Cecilia plans to mail reminder invoices, and Bob will work with her regarding some new addresses. REVIEW OF MINUTES AND AR'S The March 2, 2001 IBIS Minutes were approved without change. The March 16, 2001 European IBIS Summit Meeting Minutes were approved with the following corrections reported by Bob Ross: The presentation title by Etienne Sicard was corrected to: EMC MODEL FOR PREDICTION OF PARASITIC EMISSION and the co-author is corrected to Claude Huet for the presentation by Jean Claude Perrin: INTEGRATED CIRCUITS MODELING, ICEM, INTEGRATED CIRCUITS ELECTROMAGNETIC MODEL, PROPOSAL: IEC62014-3 The corrected version of the minutes will be uploaded. The ARs will be discussed during the meeting. MISCELLANY/ANNOUNCEMENTS None. PRESS AND WEB PAGE UPDATES Bob Ross reported that IBIS and the IBIS Accuracy Report was mentioned in the March 2001 issue of Printed Circuit Design, "Ensuring Signal Integrity in Microprocessor Motherboards and Memory" by Dima Smolyansky, pp. 18 - 24. NEW MODELS AVAILABLE, LIBRARY UPDATE Roy Leventhal reported that he updated the links of the IBIS Models page and plans to do some more corrections. Bob Ross stated that anyone who finds any problems should notify Roy. OPENS FOR NEW ISSUES Bob Ross - BUG55 - Control-Z Can be Used as End-of-File INTERNATIONAL/EXTERNAL PROGRESS - IEC 62014-1 (IBIS Version 3.2) - Bob Ross reported that we are waiting for vote on the FDIS (Final Draft International Standard). It is expected to close on April 13, 2001. If the vote is successful, then IBIS Version 3.2 can be published as an official international standard. - pr EIAJ ED-5302 Standard for I/O Interface Model for Integrated Circuits (IMIC) - No report. - IEC 62014-3 (ICEM) Integrated Circuit Electromagnetic Model Proposal (formerly, IEC 93/67/NP IBIS and EMC Simulation) - Jean Claude Perrin reported that IEC 62014-3, a technical report is expected to take two to three months for balloting. In the mean time, the Committee is working on a Cookbook to provide measurement methods to get the necessary parameters if they are not provided by semiconductor manufacturers. Jean Claude will send information by e-mail to Bob Ross. Bob asked Jean Claude if it was OK to download the document under consideration by IEC and put it on the IBIS FTP site for review. Jean Claude thought this would be all right. Jean Claude also stated that he seeks more participation in the Committee. - JEDEC JC-16 - Modeling and Testing - No report. - T10, Project 1414-DT - SCSI Signal Modeling (a Technical Committee of the National Committee for Information Technology (NCITS)) - Larry Barnes reported that the next meeting will be held April 2-4, 2001 in Massachusetts, and the following meeting will be in June or July in Connecticut. The SCSI Signal Modeling (SSM) Technical Report should be closed at that time. A new version of the document will be uploaded by Monday, April 1, 2001 and can be found under: http://www.t10.org/ssm.htm or directly at: ftp://ftp.t10.org/drafts/ssm/ssm-r03.pdf It contains references to the IBIS Cookbook and credits Stephen Peters for his work. Bob Ross indicated that he has made some editorial comments. Bill Ham initiated a technical discussion, which we conducted at this time since Larry had to leave early. Bill outlined the technical challenge that the launch signal strengths depend on the data pattern. Currently there are two levels (strong and weak), but more levels could be generated. Larry commented that the SCSI technology calls for differential current source drivers. Each side might be considered to have two drivers for full strength, but the second driver switches from a source to a sink if a second successive bit occurs. A fallback mechanism would describe this effect. The driver switches direction rather than just turns off (as Bob had suggested in private e-mail to Larry). The [Driver Schedule] keyword could describe this, but the SCSI Committee needs this description for typ, min and max conditions. Al Davis suggested working with the IBIS Futures committee so that a proper model type could be described. Larry will do this. Stephen Peters will provide Larry with the meeting information. Bob indicated that we should still investigate this through the BIRD process and target it for an IBIS Version 4.0 release. The actual implementation might still be through the macro language and a Version 4.0 template. DATE 2001 EUROPEAN IBIS SUMMIT MEETING FEEDBACK Bob Ross asked for comments. Bob stated that we had a lot of presentations, but we managed to get the key information presented and still have some questions and discussions after each one. Bob thanked Syed Huq for uploading Acrobat .pdf versions of the Power Point presentations. Arpad Muranyi commented that the presentations were high quality. Some interesting new ways to use the IBIS data files were given. Arpad felt that some advances need to be considered for IBIS-X implementation. DESIGN AUTOMATION CONFERENCE 2001 IBIS SUMMIT MEETING PLANS Bob Ross outlined the general plans for the next IBIS Summit Meeting. The annual meeting is held along with the Design Automation Conference (DAC). This year it is in Las Vegas, Nevada. The IBIS Summit Meeting will be held in the Hilton Hotel adjacent to the Las Vegas Convention Center. It is scheduled for Thursday, June 21, 2001, the day after the trade show portion of DAC. This meeting is sponsored by the IBIS Open Forum through the dues, and Bob will ask Guy de Burgh to coordinate the local arrangements. Bob stated that we hold election of IBIS officers. Elections are open to anyone, and nominations will be accepted at the meeting. However, Bob would also like to find out who is interested in serving so we can announce the candidates several meetings before the DAC IBIS Summit Meeting. In addition, we will plan to have presentations and discussions. We will probably have sessions on: Connector Specification IBIS-X IBIS Version 4.0 Issues Possibly other topics such as enhanced buffer extraction Roy Leventhal stated that he will probably give a presention at the IBIS Summit Meeting in September in Massachusetts. IBIS MODEL REVIEW COMMITTEE DISCUSSION Bob Ross reported that IBIS models from AMD and UTMC have been sent out by John Angulo for review. CONNECTOR PROPOSAL REVIEW Bob Ross stated that he had planned to start the Connector Specification review at this meeting, but did not have time to prepare for it. He plans to have another Connector Working Group Meeting on April 3, 2001 to consider more cleanup of the document. The first review will now be planned for the next meeting and expected to focus on the Header section. It should be aligned with the IBIS-X document header. Al Davis has started to prototype the Specification, but has uncovered some technical issues. He will bring them up to the Connector Working Group. Bob asked for some details off line. Al may discuss this at the Connector Working Group meeting. IBIS FUTURES (IBIS-X, API, BIRDxx) Stephen Peters summarized the discussions of the March 20, 2001 Working Group meeting. The Working Group is ready to release to the Open Forum the top level specification. A component section similar to that in IBIS Verison 3.2 has been added, but with some editorial changes to fit better with the IBIS-X structure. Stephen reported that the formal documentation of the macro-language still needs to be done. Also, the library guide needs to be written. The IBIS Futures Working Group wants to work with the Connector Working Group to insure the documents are compatible. The next IBIS Futures Working Group meeting is scheduled for April 3, 2001 and every two weeks thereafter. BIRD69.1 - GOLDEN WAVEFORMS Bob Ross suggested withdrawing BIRD69.1 since BIRD70 was issued to cover the same functions. The BIRD69.1 author, Greg Edlund, favors moving forward with BIRD70. Bob called for a vote on BIRD69.1 BIRD69.1 was rejected by Unanimous Vote BIRD70 - GOLDEN WAVEFORMS Al Davis introduced BIRD70 since Greg Edlund could not attend this meeting. BIRD70 contains some syntactical revisions to make it fit better with the IBIS-X macro language. It separates the testing portion of an IBIS model from the existing model portion used for electrical characterization. BIRD70 (and a future BIRD70.1) propose that the golden waveform information be located under a [Test Data] and [Test Load] keyword, not under the [Model] keyword as was proposed in BIRD69.1. (In BIRD70, the waveforms are still under the [Rising Waveform] and [Falling Wave] keywords.) Al and Bob Ross commented on a few points and also stated that some BIRD70.1 changes were already planned. Bob wanted the detailed discussions to be conducted after BIRD70.1 is issued. Al commented that he did not like listing default [Test Load] values. Bob agreed. If the sub-parameter is missing, the defaults should be automatically set to open for shunt elements, and short for series elements. Transmission lines without the Td subparameter value would be assumed to be shorted. The default voltage might be an issue, but BIRD70.1 should provide a solution. Bob stated that Greg Edlund plans to issue BIRD70.1. Some editorial changes might be given to Greg beforehand. BIRD70.1 will add a subparameter to name the Driver model. It will describe the equivalent package model directly, if used L, C, and R subparameters. AR - Greg Edlund issue BIRD70.1 with planned revisions and other submitted changes. OTHER PENDING BIRDS Bob Ross commented that the Fallback Submodel BIRD had been discussed earlier as part of the SCSI t10 report. There is still needed for this BIRD to describe the dynamic output control functionality. Two other BIRDs include one proposal for PCI thresholds, and one for simultaneous Switched Outputs (SSO). IBISCHK3 BUG TRACKING Bob Ross stated that Matthew Flora provided fixes to BUG53 and BUG34. The fixes have been included in a new ibischk3 Version 3.2.7. No other fixes were done so that the new executable could be released soon. Prior to the new Version, ibischk3 incorrectly issued Warnings for correct *Open* IBIS models. Matthew generated new source code and distributed it to the companies that had purchased source code licenses. Matthew also generated the Windows executable. Guy de Burgh generated executables for Unix systems. Bob stated that the new executables are uploaded: http://www.eda.org/pub/ibis/ibischk3/ The older Verison 3.2.5 and Version 3.2.6 executables are archived under this directory. Bob expects Syed Huq to generate and upload the new executables for Linux. - BUG54 - Corners with NA give Bad Test Load Warnings Because Michael Mirmak could not attend this meeting, and because Bob needed to consider how to implement BUG54, Bob decided to postpone the discussion on how to resolve BUG54 until the next meeting. Bob commented that BIRD54 had been modified in response to comments from the March 2, 2001 IBIS meeting. - BUG55 - Control-Z Can be Used as End-of-File (new agenda item) Bob Ross introduced BUG55, authored by Matthew Flora. BUG55 describes a situation that in older DOS and Windows based file, a control-Z can serve as an End-of-File character. Sometimes these characters are incorrectly inserted within a file. If they exist, further ibischk3 processing of the file is terminated. The resolution is to set a flag to read Windows files in binary mode. Then incorrect characters such as control-Z can be detected in in a file in the same manner that they are now detected in Unix operating systems. Al Davis had some questions. Bob suggested reviewing BUG55 which is now uploaded under http://www.eda.org/pub/ibis/bugs/ibischk/ to get a more precise description of the technical details. Bob classified BUG55 as Annoying, Low, Open. The plan is to fix it, unless some technical concerns are uncovered. NEXT MEETING: The next teleconference meeting will be on Friday, April 20, 2001, from 8:00 AM to 10:00 AM. ============================================================================== NOTES IBIS CHAIR: Bob Ross (503) 685-0732, Fax (503) 685-4897 bob_ross@mentor.com Modeling Engineer, Mentor Graphics 8005 S.W. Boeckman Road, Wilsonville, OR 97070 VICE CHAIR: Stephen Peters (503) 264-4108, Fax: (503) 264-4515 stephen.peters@intel.com Senior Hardware Engineer, Intel Corporation M/S JF1-209 2111 NE 25th Ave. Hillsboro, OR 97124-5961 SECRETARY: Guy de Burgh (805) 988-8250, Fax: (805) 988-8259 gdeburgh@innoveda.com Senior Manager, Innoveda 1369 Del Norte Rd. Camarillo, CA 93010-8437 LIBRARIAN: Roy Leventhal (837) 797-2152, Fax: (847) 222-2799 roy_leventhal@3com.com Senior Engineer, CommWorks Corp. (a wholly owned 3Com subsidiary) 1800 W. Central Rd. Mt. Prospect, IL 60056-2293 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) 869-2320, Fax: (425) 881-1008 jangulo@innoveda.com Development Engineer, Innoveda 14715 N.E. 95th Street, Suite 200 Redmond, WA 98052 This meeting was conducted in accordance with the EIA Legal Guides and EIA Manual of Organization and Procedure. The following e-mail addresses are used: ibis-request@eda.org To join, change, or drop from either the IBIS Open Forum Reflector (ibis@eda.org), the IBIS Users' Group Reflector (ibis-users@eda.org) or both. State your request. ibis-info@eda.org To obtain general information about IBIS, to ask specific questions for individual response, and to inquire about joining the EIA-IBIS Open Forum as a full Member. ibis@eda.org To send a message to the general IBIS Open Forum Reflector. This is used mostly for IBIS Standardization business and future IBIS technical enhancements. Job posting information is not permitted. ibis-users@eda.org To send a message to the IBIS Users' Group Reflector. This is used mostly for IBIS clarification, current modeling issues, and general user concerns. Job posting information is not permitted. ibischk-bug@eda.org To report ibischk2/3 parser bugs. The Bug Report Form Resides on eda.org in /pub/ibis/bugs/ibischk/bugform.txt along with reported bugs. To report s2ibis, s2ibis2 and s2iplt bugs, use the Bug Report Forms which reside under eda.org in /pub/ibis/bugs/s2ibis/bugs2i.txt, /pub/ibis/bugs/s2ibis2/bugs2i2.txt, & /pub/ibis/bugs/s2iplt/bugsplt.txt respectively. Information on IBIS technical contents, IBIS participants, and actual IBIS models are available on the IBIS Home page found by selecting the Electronic Information Group under: http://www.eigroup.org/ibis/ibis.htm Check the pub/ibis directory on eda.org for more information on previous discussions and results. You can get on via FTP anonymous. ==============================================================================