DATE: May 7, 1995 SUBJECT: 5/26/95 EIA IBIS Open Forum Meeting Minutes VOTING MEMBERS: AT&T Global Info Solutions Dave Moxley* Cadence Design Sandeep Khanna, C. Kumar* Contec Dileep Divekar* HyperLynx Kellee Crisafulli INCASES Werner Rissiek, Olaf Rethmeier* Intel Corporation Stephen Peters*, Will Hobbs*, Arpad Muranyi*, Derrick Duehren* Interconnectix, Inc. Bob Ross* Motorola Ron Werner National Semiconductor Syed Huq*, Atul Agarwal NEC Hiroshi Matsumoto Quad Design Jon Powell Quantic Labs Mike Ventham* Texas Instruments Bob Ward* Thomson-CSF/SCTF Jean Lebrun UniCAD Canada Ltd. Stephen Lum Zuken-Redac John Berrie OTHER PARTICIPANTS: ARPA Randy Harr Anacad Steffen Rochel Ansoft Henri Maramis Atmel Corporation Dan Terry Cadlab Ralf Bruning Digital Equipment Corp. Barry Katz EIA Patty Rusher High Design Technology Michael Smith, Dr. Ing. Cosso Hewlett Packard Tom Langdorf, Karl Kachigan, Henry Wu IBM Jay Diepenbrock Integrated Silicon Systems Eric Bracken Intergraph Ian Dodd, David Wiens, Walter Katz IntuSoft Charles Hymowitz Mentor Graphics Ravender Goyal, Greg Doyle Meta-Software Mei Wong, You-Pang Wei, John Sliney MicroSim Arthur Wong North Carolina State U. Steve Lipa, Michael Steer OptEM Engineering, Inc. Benny Leveille, Ken Ehn Pacific Numerix Paul K. U. Wang Symmetry Martin Walker Synopsys, Logic Modeling G. Bill Lattin Zeelan Technology George Opsahl, Hiro Moriyasu In the list above, attendees at the meeting are indicated by *. Upcoming Meetings: The bridge numbers for future IBIS teleconferences are as follows: Date Bridge Number Reservation # 6/14/95 Birds of the Feather meeting at DAC 6/15/95 General session meeting at DAC 1:00 - 5:00 p.m. 7/7/95 (916) 356-9999 _______ All meetings are 8:00 AM to 10:00 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. NOTE: "AR" = Action Required. -------------------------------- MINUTES ------------------------------------- CHECK-IN, INTROS, ANNOUNCEMENTS, TREASURE'S REPORT There were no corrections made to last month's minutes. There were no new participants. NEW AGENDA ITEMS: None. PRESS UPDATES: Electronic Design April 17 and May 1 issues have articles referencing IBIS. Derrick received over 30 new requests for additions to the IBIS reflector after Jon Powell advertised the IBIS open forum while answering a question from someone in Germany regarding the SI mail list. We now have 185 interested persons on the reflector. NEW MODELS AVAILABLE: National sent a "SuperI/O" model to Michael for posting. [Update: it is now posted to vhdl.org.] EIA IBIS MEMBERSHIP UPDATE: We now have 16 paid members (indicated in the participant list above). PROGRESS TOWARD ENLISTING NEW IC VENDORS Many of the IBIS members are IC vendors. We decided to remove this as a regular meeting topic. GOLDEN PARSER 2.1 STATUS Beta 5 and Beta 6 were dispersed. Bob Ross went through the test matrix and found four issues in the Beta 6 parser: 1. The parser crashes in certain conditions like invalid pin counts. 2. On banded matrix, the parser and spec agree, but ignore symmetry. It confuses banded and triangular matrix forms. This needs a BIRD. AR Bob -- Post your banded matrix correction as BIRD29. AR Bob -- Work with Ron and Paul to correct these in the parser. 3. Sparse matrix problem with alphanumerics (a fundamental problem for PGAs) gives wrong results. 4. Correlation between pin numbers in .ibs files and those in the .pkg file. Bob posted a test case that demonstrates this problem. Bob feels the parser needs another spin before we release it, but it is getting very close. We discussed treating Paul and Ron fairly through extra compensation. AR Will -- Contact Paul and Ron. Negotiate a fair compensation for their additional work. Arpad and Bob have checked some of the case sensitivity changes, and it seems to function under Windows, DOS, and UNIX. By consensus, we decided to roll all pending BIRDs into the ballot-review process. We also agreed that any changes proposed through the ballot process will be reviewed via the BIRD process. SPEC BALLOTT STATUS After some confusion, the IBIS spec is out for EIA ballot. IBIS spec ballots went out to the general EIA mailing list last week, mailings to the IBIS roster list were sent this week. PLANS FOR IBIS MEETING AT DAC (JUNE 2ND - 16TH) We will have a face-to-face meeting at DAC to elect officers and conduct other business Thurs. 6/15/95, 1:00 pm to 5:00 pm, Marriott Hotel, tentatively "Pacific 1" room (check the hotel register for confirmation). Topics: Election of officers Status of balloting Support of MCMs and SIMMs (if we have time) Package Issues (if we have time) AR Will -- Send Jon your "history of IBIS" foils. [Update: Patty Rusher will attend the face-to-face.] Placards. Jon had 40 placards made. 2,000 EDN article reprints have been ordered and will be available at the EIA booth. REV 2.1 UPDATES o S2IBIS 2.1 Bob Ross reported that very little has occurred. o Cookbook Bob has plans for some submissions. o Overview No discussion. BIRD 26 - TAB CHARACTERS DISCOURAGED IN .IBS FILES Voted and approved unanimously (8 members voting). BIRD 27 - NEW KEYWORD FOR DIFFERENTIAL I/O Bob Ward explained his BIRD. TI has a chip that switches a lot of differential pairs. This BIRD removes redundancy by adding keyword to override the default differential threshold V_diff value (currently 200 mV) and make it the subsequent default value instead of having to repeatedly override the default. Bob Ross pointed out that the BIRD would not result in smaller files, and he made some suggested enhancements to the BIRD to eliminate columns and save data. We will continue this discussion after DAC. AR Bob Ross -- Send your ideas for altering BIRD27 to Bob Ward (BWard@phoenix.net). BIRD 28 - PACKAGE MODEL EXTENSION Stephen led a lively discussion on this Bird. Stephen has made changes suggested by various people, notably Kellee Crisafulli. Lots of discussion, sorting out how this BIRD addresses relatively simple packages and is not intended to address SIMMs and MCMs. There is a lot of interest in MCM and SIMM support, so the question is, should we create a format to describe SIMMs and MCMs, and if so, does this Bird become redundant? We will continue to discuss it over the reflector. NOTE: This BIRD does not currently address MCMs. SUPPORT OF MCMS AND SIMMS? IF YES, HOW? Concepts for handling MCMs were tossed around. Anyone is welcome to post EGG proposals for handling MCMs. Mike Ventham pointed out that adding more scope to the spec can make it more complicated/intimidating for prospective model writers. We need to better communicate what is and is not required ============================================================================== NOTES IBIS CHAIR: Will Hobbs (503) 264-4369, Fax (503) 264-4210 Will_Hobbs@ccm.jf.intel.com Modeling Manager, Intel Corp., Chairperson, EIA IBIS Open Forum 5200 NE Elam Young Pkwy M/S JF1-50, Hillsboro, OR 97124 USA VICE CHAIR: Jon Powell (805) 988-8250, Fax: (805) 988-8259 JonP@qdt.com 1385 Del Norte Rd., Camarillo, CA 93010 SECRETARY: Derrick Duehren (503) 264-4299, fax (503) 264-4904 Derrick_Duehren@ccm.jf.intel.com Intel Program Manager To become a voting member of the EIA IBIS Open Forum, send email to ibis-info@vhdl.org for instructions. If you want to join the e-mail reflector (ibis@vhdl.org), send e-mail to the IBIS secretary at ibis-request@vhdl.org. Check the pub/ibis directory on vhdl.org for more information on previous discussions and results. You can get on via ftp anonymous, "guest" login from telnet or dial-in (415-335-0110), or send an email request to the automatic archive server, archive@vhdl.org. ==============================================================================