DATE: October 11, 1995 SUBJECT: 10/06/95 EIA IBIS Open Forum Meeting Minutes VOTING MEMBERS: AT&T Global Info Solutions Dave Moxley* Cadence Design Sandeep Khanna, C. Kumar* Contec CAE, Ltd. Dileep Divekar* HyperLynx Kellee Crisafulli IBM Jay Diepenbrock INCASES Werner Rissiek, Olaf Rethmeier Intel Corporation Stephen Peters*, Will Hobbs*, Arpad Muranyi*, Derrick Duehren Interconnectix, Inc. Bob Ross* Meta-Software Les Spruiell, Mei Wong, You-Pang Wei, John Sliney Motorola Ron Werner National Semiconductor Syed Huq*, Atul Agarwal, Cheng-Yang Kao NEC Hiroshi Matsumoto, Eldar Yazbashevz Quad Design Jon Powell, Chris Myles* Quantic Labs Mike Ventham Tanner Research, Inc. Scott Wedge, Ed Miller, Peter Parrish Texas Instruments Roger Cline, Ben Andresen Thomson-CSF/SCTF Jean LeBrun UniCAD Canada Ltd. Stephen Lum VLSI Technology Dick Ulmer*, Sung Oh* Zuken-Redac John Berrie OTHER PARTICIPANTS: ARPA Randy Harr Anacad Steffen Rochel Ansoft Henri Maramis Atmel Corporation Dan Terry Cadlab Ralf Bruning CFI Ron Christopher* Digital Equipment Corp. Barry Katz EIA Patti Rusher High Design Technology Michael Smith, Dr. Ing. Cosso Hewlett Packard Tom Langdorf, Karl Kachigan, Henry Wu Integrated Silicon Systems Eric Bracken Intergraph Ian Dodd, David Wiens, Walter Katz IntuSoft Charles Hymowitz LSI Logic Corp. Satish Pratadneni Mentor Graphics Ravender Goyal, Greg Doyle Micron Technology Brian Johnson 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 Univ. of Illinois, Urbana Raj Mittra Zeelan Technology George Opsahl, Hiro Moriyasu (Independent) Bob Ward 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 # Passcode 10/27/95 (916) 356-9200 1-29704 4532338 11/17/95 (916) 356-9200 1-29707 9376211 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 None. EIA MEMBERSHIP AND TREASURER'S REPORT The treasury is still about $8725.54. MINUTES REPORT, MISC. Some spelling corrections have been made. Will reviewed the AR's. MISCELLANY/ANNOUNCEMENTS None. PRESS UPDATES Electronic Design (September 18, 1995), pp. 69-83 with a major contribution by Jon Powell on IBIS. EE Times Reference to IBIS in a Roadmap Discussion around Sept, 1995. NEW MODELS National has submitted a new cbtl model and revised the super_I/O model. Intel has some i960 Processor models for possible submission. OPENS FOR NEW ISSUES None. EIA IBIS RATIFICATION Will Hobbs indicated that the process toward ratification has been slower than expected, but that all needed material has been submitted. So the package should be forwarded to EDEC shortly for a 10 day review period. EIA-656 should be official by the end of October. There was no discussion on press release, but one should be forthcoming from EIA upon ratification of EIA-656. WEB UPDATE (AND EIA) Syed Huq sent all of the material to EIA and it is in shape for activation of the home page. There is a legal or administrative hold up, which needs to be resolved. AR - Syed Huq contact Patti Rusher regarding obstacles and report back to the mailing list. The EDN article figures still need conversion. One figure can be recreated by Syed. AR - Stephen Peters and Arpad Muranyi locate the original figure or locate a new one to give to Syed. FACE TO FACE MEETING National Semiconductor voluteered to host the face-to-face meeting in Santa Clara in January, 1996. Syed Huq is investigating dates on either side of the SuperCon96 meeting scheduled around the end of January, 1996. AR - Syed Huq report the proposed dates. MODEL USAGE TRACKING Syed Huq needs closure on the model usage tracking on vhdl.org. Previously Steve Lipa had indicated that it should not be difficult to set up. AR - Syed Huq contact Steve Lipa and Michael Steer regarding setting up the model usage tracking system. and give status of model usage tracking project. GOLDEN PARSER UPDATE A bug producing a "BUG" versus the correct "ERROR" message has been discovered in the Beta 9 release (and earlier versions) when [Package] is omitted entirely. The corrections is minor, so a small test version is being distributed to validate the fix. Upon approval, the final release will be put on vhdl.org. Bob Ross reported that the ibischk2 directory is in place. Another difference has been recently discovered. IBIS Version 1.1 supports multiple [Disclaimer] keywords, but when the files are designated Version 2.1, an error is reported. This impacts attaching the generic IBIS disclaimer along with the disclaimer within the model. A work around is to put the "|" in front of the IBIS disclaimer. Arpad Muranyi suggested that only the disclaimer text, but not the keyword itself, be appended to an existing [Disclaimer] to avoid two [Disclaimer] keywords. It was decided not to fix this problem at this time (causing further delay), but to wait until a possible future correction release if other probems are found. Once the corrected ibischk2 is checked, the process to post it will be done through Jon Powell to make the executables, and Bob Ross to put them on vhdl.org per AR's of the last meeting. AR - Bob Ross post a note when ibischk2 version 10 is checked. [Done] SPICE TO IBIS VERSION 2.1 Michael Steer and North Carolina State University team have posted a Beta correction version on vhdl.org under /pub/ibis/s2ibis/s2ibis_v2.091 to use other than global node 0 for ground. Node 0 causes problems with some Spices. COOKBOOK Bob Ross reported no progress. BIRD27.1(2) DEFAULT DIFFERENTIAL THRESHOLD Bob Ross introduced BIRD27.2, a revision to the original proposal by Bob Ward. The revised bird which offers some syntax efficiencies for differential pin designation was discussed. This BIRD does not provide any technical change. The effiencies would cause the parser to be even more complicated. BIRD27.2 was Voted Down by Membership vote for Version 3.0. It could be reopened in the future prior to Version 3.0 if there is renewed interest or need. BIRD28.3 PACKAGE MODEL ENHANCEMENT Stephen Peters introduced BIRD28.3 with a clarification to use Maxwell Capacitances for the [Capacitance Matrix] and a forward slash notational correction. Some clarifying technical discussion occurred related to length of stubs, mutual coupling, SSO, and MCM migration paths. Stephen also reported that he presented the approach to JEDEC JC-15, a subcommittee concerned with packaging, and they generally approved of the approach which allows taking coupling into account. BIRD28.3 was Approved by Membership Vote. PHYSICAL PACKAGE DISCUSSION Ron Christopher raised the question about the relationship of BIRD28.3 to MCM packages and whether there was a migration path. In general, this BIRD did not intend to address MCMs, but is positioned as an accuracy extension to the existing package model. C. Kumar indicated that geometrical descriptions require field solvers and other equipment to solve this problem. (This is actually the business area of several simulator companies involved with IBIS.) Ron mentioned that EDIF Version 4 0 0 representation may offer a solution to the geometric representation. The EDIF committee has a reflector, and perhaps we should link up with them and discuss how to handle the MCM representation. Ron also mentioned that there are other related standards. AR - Ron Christopher check into linking up with EDIF on this issue. AR - Ron Christopher post to the reflector information on DIE, DIET, DCL, and EDIF PCB MCM. BIRD30 - PIN PROGRAMMABLE BUFFER STRENGTHS Arpad Muranyi discussed BIRD30.1 which has the "default" sub-parameter removed and the discription reduced to one word. Stephen Peters preferred limiting the description to text of 60 characters with internal white spaces for easier reading. Bob Ross prefers one word for syntactical consistency, but this is not a strong point. AR - Arpad Muranyi submit BIRD30.2 with internal white space inclusion. CFI/OVI TELECONFERENCE Ron Christopher raised the concern that timing standards need to track pin programmable buffers. This spawned a discussion on back-annotation, static timing efforts by CFI, OVI, and Vital. CFI/OVI has a teleconference scheduled for 11 AM PCT on October 12, and they would like to have IBIS members participate to discuss system level timing and delay calculation. The number is 201-839-5184 and mention Ellis Cohen Conference Call. NEXT MEETING: It is set on Friday, October 27, 1995, chaired by Jon Powell in Will's absense ============================================================================== NOTES IBIS CHAIR: Will Hobbs (503) 264-4369, Fax (503) 264-4210 will_hobbs@ccm.jf.intel.com Modeling Manager, Intel Corp. 2111 NE 28th M/S JF1-57, 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: Bob Ross (503) 603-2523, fax (503) 639-3469 bob@icx.com 10220 SW Nimbus Ave, K4, Portland, OR 97223 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. "IBIS Spoken Here" placards are available from Jon Powell (jonp@qdt.com) for use at trade shows. ==============================================================================