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. The work
around is to put the "|" in front of the IBIS disclaimer or to eliminate
the second keyword entirely. 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.
==============================================================================
Received on Wed Oct 11 10:34:58 1995
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