From: owner-ibis-users@eda.org on behalf of rrwolff@micron.com Sent: Thursday, October 09, 2003 8:10 AM To: ibis@eda.org; ibis-users@eda.org Subject: [IBIS-Users] [IBIS] Open forum minutes (10/03/03) DATE: 10/09/03 SUBJECT: October 3, 2003 EIA IBIS Open Forum Meeting Minutes VOTING MEMBERS AND 2003 PARTICIPANTS LIST: Ansoft Corporation (Eric Bracken) Apple Computer Kim Helliwell Applied Simulation Technology Fred Balistreri Cadence Design Lynne Green*, Lance Wang Cisco Systems Syed Huq, Michael LaBonte, Val Mandruson, Hung Pham, Todd Westerhoff Fairchild Semiconductor (Graham Connolly) Hitachi ULSI Systems Kazuyoshi Shoji Huawei Technologies (Jiang Xiang Zhong) Intel Corporation Stephen Peters*, Michael Mirmak*, Arpad Muranyi*, Eric Magnusson LSI Logic Frank Gasparik Matsushita (Panasonic) Atsuji Ito Mentor Graphics [Bob Ross], Ian Dodd*, Guy de Burgh, John Angulo*, Mike Donnelly, Weston Beal Micron Technology Randy Wolff Molex Incorporated Gus Panella Motorola (Rick Kingen) National Semiconductor [Milt Schwartz], [Tim Coyle] NEC Electric Corporation (Itsuki Yamada) North East Systems Associates Edward Sayre Philips Semiconductor (D.C. Sessions), Stephanie Goedecke Siemens (& Automotive) AG Eckhard Lenski, Michael Kindij, Burkhard Muller, Katja Koller, Andre Goerisch, Manfred Maurer, Bernard Unger, Amir Motamedi, Hartmut Ibowski, Gerald Bannert Signal Integrity Software Bob Haller, Barry Katz, Doug Burns Sigrity [Raj Raghuram] Synopsys Warren Wong, Edmund Cheng Texas Instruments Thomas Fisher Teraspeed Scott McMorrow, Tom Dagostino, Kevin Simpson, Bob Ross* Time Domain Analysis Systems Dima Smolyansky, Steve Corey Zuken (& Incases) Michael Schaeder, Ralf Bruening OTHER PARTICIPANTS IN 2003: Agilent Technologies Herbert Lage Brocade Frank Yuan, Yongrue Yu Conexant Gary Felker EADS CCR Alix de la Villeguerin EFM Ekkehard Miersch EMC Corporation Brian Arsenault, John Fernandez, Simba Julian Fraunhofer IZM Ege Engin Fujitsu Tadashi Arai GEIA (Chris Denham) Independent Kelly Green*, Luca Giacotto Infineon Tech AG Christian Sporrer Marvell Semiconductor Itzik Peleg NetLogic Microsystems Eric Hsu North Carolina State Univ. Ambrish Varma* Plexus Joseph Socha Politechnico de Torino Igor Stievano Qlogic Larry Barnes Sintecs BV Hans Klos, Bob te Nijenhuis SiQual (Rob Hinz) Sun Microsystems Tim Coyle* Via Technologies (Weber Chuang) Xilinx Susan Wu 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 October 21, 2003 TBD October 24, 2003 1-916-356-2663 3 190-3009 All meetings are 8:00 AM to 9:55 AM 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 reservation 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 participants. CALL FOR PATENTS Michael Mirmak called for any patents or pending patents related to the IBIS Version 4.0, 4.1 or ICM specifications. No patents were declared. MEMBERSHIP UPDATE AND TREASURER'S REPORT Michael Mirmak reported that, as a result of recent payments, membership now stands at 27 organizations, with a twenty-eighth member in processing. The new members are reflected in the membership roster on the web site and in the list above. Michael also provided a financial update. Based upon the data from the GEIA for the year through the end of August, the Open Forum revenues are approximately $2000 below budget, due to royalty revenues expected but not received. However, the Open Forum is also approximately $1500 below budgeted expenses for the year. An additional payment to the parser developer to conclude work on IBISCHK4 and additional revenue from a new membership (see above) are expected. REVIEW OF MINUTES AND AR'S The September 12, 2003 meeting minutes were approved without objection. MISCELLANY/ANNOUNCEMENTS Lynne Green announced that she and Arpad Muranyi would be presenting a "webinar" hosted by Cadence Design Systems on October 8. The subject is differential IBIS modeling techniques. Bob Ross mentioned a new book, "Engineering Electromagnetic Compliance" published by Wiley and Sons. Chapter 14 contains significant material on IBIS modeling. More information on the book can be found at: http://www.wiley.com/WileyCDA/WileyTitle/productCd-0780347439.html PRESS AND WEB PAGE UPDATES Michael Mirmak noted that Syed Huq has updated the IBIS web site to list the new Open Forum member companies (see above). NEW MODELS AVAILABLE, LIBRARY UPDATE No new models received. OPENS FOR NEW ISSUES No new issues. INTERNATIONAL/EXTERNAL PROGRESS - IEC 62014-3 (ICEM) Integrated Circuit Electromagnetic Model Proposal (formerly, IEC 93/67/NP IBIS and EMC Simulation) No update. - JEDEC Activity Report No update. PCB EAST SUMMIT DISCUSSION Lynne Green has distributed the third call for papers to the PCB East IBIS Summit. Six presentations are planned: the Chair's Report, a presentation from Timothy Coyle on their modeling efforts and a web page proposal, an IBIS Quality Committee report from Robert Haller, a differential buffer update from Arpad Muranyi, and a short ICM example from Michael Mirmak. Luncheon sponsorship is still needed, though. The summit agenda will be published on or around October 14. Presentation materials are due to Lynne Green and Bob Ross by Thursday, October 16. Bob Ross has volunteered to provide format conversion services. DESIGNCON 2004 SUMMIT DISCUSSION Michael Mirmak reported that a new agreement for IBIS Summit support has been received from the IEC. Discussions are planned in the immediate future regarding whether some of the complementary items may be traded for refreshments for the Summit participants. In addition, sponsors are needed for lunches at both PCB East and DesignCon 2004. Open Forum members and participants are encouraged to inquire at their organizations regarding co-sponsorship of the summit. Sponsors will be prominently mentioned in Summit presentations, announcements, and the minutes. IBIS VERSION 4.0 PARSER FUNDING AND STATUS Michael Mirmak reported that payments from all parser sponsors have been received by the GEIA. The parser code set will be provided to the sponsors within a week. A test version of IBISCHK4 is available for download: http://www.vhdl.org/pub/ibis/ibischk4_beta A review of the BUG reports still to be addressed was conducted during the Technical Discussion portion of the meeting (see below). IBIS QUALITY COMMITTEE Bob Ross reported that meetings continue every two weeks. The last meeting took place on September 23. IBIS MODEL REVIEW COMMITTEE Lynne Green reported that no new models have been received by the committee since the last meeting. S2IBIS3 Ambrish Varma reported that he has completed work on the Series MOSFET code for S2IBIS3. A new release plus documentation is being prepared. 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. Ambrish will distribute a call for feedback on the latest code using the reflector. NEW ADMINISTRATIVE ISSUES No new issues. BIRD84: DRIVER SCHEDULE CLARIFICATIONS Arpad Muranyi introduced BIRD84, which addresses two aspects of the [Driver Schedule] keyword definitions in 4.0: - subparameters of scheduled models are ignored, similarly to c_comp - "events" used to trigger the delays (such as Rising_off_delay, etc.) are better defined Due to these clarifications, [Driver Schedule] will not permit buffers to be "overclocked" in simulation. Bob Ross added that the keyword was never intended to permit overclocking behavior, in that all time delays were assumed to be shorter than the clock period of the driver. Feedback from Weston Beal has been received and may be incorporated into a revised BIRD84.1. IBIS ICM SPECIFICATION REVIEW Michael Mirmak announced that the final editorial mark-up of the ICM 1.0 specification had been completed. The 1.0 specification is now available on the IBIS web site, in Microsoft Word*, Adobe Acrobat* and ASCII text formats. Kelly Green announced that parser work has begun and is nearing 25% completion. He anticipates that a beta version will be ready for testing by the end of October. The current code is being developed under UNIX but will be converted to ANSI C for porting to other operating systems. Mentor Graphics has offered to compile a Sun Solaris* version, while Cadence Design Systems will compile a Microsoft Windows* executable. Bob Ross and Scott McMorrow of Teraspeed will provide a realistic set of data to be used in an example model. BIRD83: SERIES ELEMENT CLARIFICATIONS Michael Mirmak introduced BIRD83, which addresses two aspects of the treatment of series elements in 4.0: - the [Series MOSFET] keyword is explicitly required before every use of the Vds subparameter - any use of the "function_table_groups" column under [Series Pin Mapping] requires the presence of [Series Switch] elsewhere under that component Bob Ross suggested that additional detail explaining exactly what text changed from 4.0 in the new BIRD may be added in the Analysis section at the end of the BIRD. However, a new BIRD filing is not required. IBIS VERSION 4.1 DISCUSSION John Angulo is completing work on a BIRD to document the proper usage of [Ramp] data for the [External Model] keyword. The BIRD will also clarify the use of native IBIS [Model] subparameters within [External Model]. Although discussed in an earlier meeting, no change to the treatment of c_comp is anticipated; it will still be optional in [External Model] and will not be necessary or permitted under [External Circuit]. Michael Mirmak proposed that the official "readings" of the specification text begin at the next Open Forum meeting, with an approval vote to be held after the third reading. BIRD83, BIRD84 and the expected [Ramp] keyword clarification BIRD could be considered in parallel with the readings. Lynne Green suggested that the specification text be stable for at least two of the readings, although Bob Ross commented that minor text changes should not prevent an immediate start to the readings. A draft version of IBIS version 4.1 is available on the web. Both an ASCII text and an Adobe PDF version are available at: http://www.vhdl.org/pub/ibis/wip/ IBISCHK4 & BUG TRACKING STATUS The BUG reports still open are BUG68, BUG73, BUG75, BUG76, BUG78, and BUG80. Of these, BUG80 will not be addressed in the IBISCHK4 parser (see below) and BUG78 will not be fixed. Code to fix BUG73 has been developed by John Angulo and provided to the developer but has not yet been included in the latest parser code. BUG68, BUG75, and BUG76 will be checked by their respective owners. It is also unknown whether all the required 4.0 features have been implemented in the new code. Michael Mirmak will confirm the BUG treatment status and the support of 4.0 features with the parser developer. John Angulo has accepted the AR to check the fixes in the next code release. BUG80 - [Model Selector] and [Diff Pin] Ordering John Angulo introduced BUG80. When a model contains a [Diff Pin] keyword placed after a [Model Selector], errors regarding an "orphan component" and an "orphan data line" are produced by the parser. While the parser error messages may need to be clarified, the specification does not clearly explain the scope of the [Diff Pin] and [Model Selector] keywords relative to the [Component] keyword. This relationship is clarified by the separate "tree" documents showing the IBIS keyword hierarchy. The BUG was classified as annoying, low priority and open, but will not be fixed in the 4.0 parser. A BIRD which either clarifies the scope of the keywords involved or which formally incorporates the entire tree hierarchy into the specification is being contemplated. NEXT MEETING: The next meeting will take place during the IBIS Summit at North East Systems Associates on Tuesday, October 21, starting at 9 AM US Eastern Time. A regular Open Forum teleconference has also been scheduled for October 24 from 8:00 AM to 10:00 AM Pacific Daylight Time. Votes regarding the approval of both BIRD83 and BIRD84 are scheduled. ============================================================================ 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) 451-1871 lgreen@cadence.com Senior Modeling Engineer, Cadence Design Systems 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 This meeting was conducted in accordance with the EIA Legal Guides and EIA Manual of Organization and Procedure. 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