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.
==============================================================================
Received on Wed Jun 7 13:13:08 1995
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