DATE: January 16, 1996
SUBJECT: 1/12/96 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
Hewlett Packard Tom Langdorf, Karl Kachigan, Henry Wu
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, Chris Rokusek*
Quantic Labs Mike Ventham
Tanner Research, Inc. Scott Wedge, Ed Miller, Peter Parrish
Texas Instruments Roger Cline*, Ben Andresen*, Sri Jandhyala*,
Tareq Shahwan
Thomson-CSF/SCTF Jean LeBrun
UniCAD Canada Ltd. Stephen Lum
VLSI Technology Dick Ulmer, Sung Oh
Zuken-Redac John Berrie
OTHER PARTICIPANTS:
AMP Hank Herrmann*
ARPA Randy Harr
Anacad Steffen Rochel
Ansoft Henri Maramis
Atmel Corporation Dan Terry
Cadlab Ralf Bruning
CFI Ron Christopher, Don Cottrell
Digital Equipment Corp. Barry Katz
EIA Patti Rusher*
High Design Technology Michael Smith, Dr. Ing. Cosso
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 Ralph Perez*
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
1/29/96 NONE - IBIS SUMMIT 8 AM - 5 PM, SANTA CLARA, CA
2/16/96 (916) 356-9200 2-48992 5519538
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
Ralph Perez joined from MicroSim, replacing the previous representative.
He is involved with libraries.
EIA MEMBERSHIP AND TREASURER'S REPORT
Hewlett-Packard - EEsof Division has officially joined for 1996 and has
also purchased the IBISCHK2 Source code. Patti Rusher reported no
change in the treasury.
MINUTES REPORT, MISC.
Spelling error of Sri Jandhyala's last name was corrected.
The outstanding action item is to send out membership renewals.
MISCELLANY/ANNOUNCEMENTS
The IBIS mail reflector on vhdl.org has been down due to some unresolved
problems. Bob Ross will use a script to do reflector mailings until
the problem is resolved. If you want to mail something, you can still
send it to the reflector where it will be archived. Bob will retransmit
the unsent email.archive messages.
PRESS AND WEB PAGE UPDATES
Hyperlynx EM article in Electronic Engineering Times, December 18, 1995,
pg. 72 mentions IBIS.
NEW MODELS
Stephen Peters reported that a new pentpro.pkg model has been submitted.
Intel also has announced some new chipset models available under NDA.
OPENS FOR NEW ISSUES
ANSI review (already on agenda)
R_load and R_fixture (not covered)
EIA/IBIS 1996 MEMBERSHIP
Patti Rusher will send out EIA/IBIS 1996 membership forms shortly. Bob
Ross had reviewed the list.
AR - Patti Rusher send out membership invoices for 1996.
AR - All pay invoice within 45 days.
The committee will keep existing members for 45 days after the receipt
of the invoice to give time to go through corporation payment processes.
ANSI/EIA-656 EDITORIAL REVIEW
Bob Ross received a review copy of the above standard prior to formal
publication as an ANSI Standard. Jon Powell and Will Hobbs reviewed
the comments and agree with all of the editorial English text corrections.
Only the global suggestion to separate numbers from the units multipliers
in ACTUAL examples will be rejected for obvious reasons. We will suggest
removing the two "ANNEX" BIRDS since they were relevant only in the
voting process and not in the final version. This new version will carry
the date "December 13, 1995" within reflecting the date of formal approval.
Bob plans to supply the updated text of Version 2.1 to EIA and also to
store it on vhdl.org when finished. This will form the technical portion
of the complete standard that will be available from EIA.
DAC STANDARDS BOOTH
The Design Automation Conference (DAC) in June, 1996 will have a Standards
booth in a prominant front location. EIA is invited to participate. The
IBIS committee expressed support. The pro-rated fee of the $5K, 1000 sq. ft.
booth to the IBIS committee is expected to be only several hundred dollars,
depending upon whether the committee will have handouts only, or have
demonstrations of IBIS. EDIF 4 0 0 is expected to have undergone final
review and will be demonstrated at DAC. Patti Rusher reported that
arrangement details will be decided at February 27, 1996 planning meeting.
The scope of the IBIS participation will be put on the agenda for the
IBIS Face to Face Meeting.
EIA can take orders for ANSI/EIA-656 and other standards, but may not sell
anything off the floor. They can have literature and demos.
AR - Will Hobbs put on the Face to Face Agenda the level of IBIS involvement
at DAC.
EIA WEB UPDATE
Syed Huq reported that the Web Page is up!! He requests feedback since
there may be some minor problems. The full address needs to be entered:
http://www.eia.org/eig/ibis/ibis.htm
Otherwise an error will be issued. The higher level search utility
does NOT point to this page.
The web site links to vhdl.org and to company home pages for those who had
requested it. This linkage is done from the IBIS Membership Poster page.
Response during the meeting indicated that people were very pleased with
the presentation and layout. Two final hand-scanned pictures in the
EDN article have been sent to EIA and need to be included.
AR - Will Hobbs check with Derrick Duehren regarding EDN article source.
Texas Instruments still plans to send the logo file to Jon Powell (who
will then forward it to Syed Huq) and the permission letter to Patti
Rusher. TI will not link to its home page at this time.
FACE TO FACE MEETING
Syed Huq reported that the meeting will take place at the Westin Hotel
(attached to the Conference Center where SuperCon96 will be held the
next day) on January 29, 1996. Two rooms are reserved for the Summit.
So far 34 people have signed up from about 20 different companies, and
more local participation is expected.
The ANSI/EIA-656 Celebration Dinner will be DUTCH TREAT at 6:00 p.m.
at the Same Hotel. The early hour will allow those who need to fly home
that evening to catch their flights. The same location eliminates the
time lost traveling and gathering at another location. Reservations
will be made during the morning of the Face to Face meeting for those
who want to attend.
Will Hobbs is requesting presentors to supply him with topics and estimated
time by the end of the day. Will, Bob Ross, and Syed Huq will start
drafting the agenda the following week.
Several people expressed intentions of having presents on BIRD subjects
and other topics. Semiconductor Vendor participation will probably
include at least Texas Instruments on TI IBIS Activities, National
Semiconductor on model provider experience, and Intel on bus keepers and
on various modeling considerations. BIRD/Egg subjects that are being
considered will probably each have presentations/discussions. The new
RAIL (Rules Augmented Interconnect Layout) committee (chaired by Don
Telian of Intel who also chaired the initial IBIS work leading to Version
1.0) has requested 45 minutes to introduce RAIL and also show how it
relates to IBIS.
AR - All Potential Presenters inform Will Hobbs by Friday, January 12.
[Done]
Presenters should bring several extra copies. National will collect a
copy of each presentation and reproduce them for distribution during
the meeting. Presentions provided in electronic form can be archived
in an directory on vhdl.org. Bob Ross will handle this.
GOLDEN PARSER UPDATE
Bob Ross reported no activity yet. A bug fix release is expected early
this year. Will Hobbs indicated the need for a PARSER Bug tracking
System. Jon Powell volunteered to take charge since he has the ibischk2
source code for distribution.
Kellee Crisafulli discovered, but did not record, some uninitialized
variables which cause problems when ibischk2 is re-entered. This would
be a problem when ibischk2 is re-entered, as occurs when used within
the Hyperlynx winibis viewing/checking/editing utility.
AR - Jon Powell send out draft form to Will Hobbs and Bob Ross for
review. [DONE]
SPICE TO IBIS VERSION 2.1
Bob Ross reported no further information.
EGG8 - PHYSICAL PACKAGE DISCUSSION
Kellee Crisafulli lead a long discussion on his approach to address
MCM and SIMM layout repesentation. Stephen Peters supports the approach,
and Jon Powell would like the see the proposal move forward somehow.
An alternative approach is to consider EDIF 4 0 0. Do we need the
added complexity. Or do we want something simple, easy, and not too
powerful?
This proposal is expected to help interface small PCB layout, SIMM
and MCM layout information with IBIS electrical characterics.
Kellee may want to get PCB layout vendors to partipate in the generation
of the format. The format itself is intended to be SIMPLE. Translators
to internal formats by (say, RSI) could be easily made available for sale.
Jon Powell indicated that most "models" would usually be autogenerated.
The format is very readable and understandable.
This proposal would produce a separate ".pcb" file similar to the .pkg
file associated with package models. The format of this file including
stackup and physical dimensions is quite different from the IBIS format.
AR - Kellee turn this into BIRD33, issued at the meeting.
Further discussion involved speculating that RSI could be hired to create
a writer or file generator for .pcb files and licence it to PC layout
companies to offer. Kellee felt that RSI would do this for a few
thousand dollars ($5-10K).
Bob Ross recommends we explore its context and position it as a separate
effort. Kellee indicates that it does not have the enough "umph" to
to stand by itself, so it should tag along with another standard such as
IBIS. Kellee expects to lead more discussion at the Face to Face Meeting.
EGG9 - HANDLING STORED CHARGE
Bob Ross has not pursued further some details on this proposal. This
is planned to be a topic at the Face to Face Meeting.
BIRD31 - CONNECTOR MODELS
Bob Ross reported that the idea of spliting the connector onto each
board has been abandoned. He is working on another proposal. Some
additional considerations will be presented at the Face to Face
Meeting. Jon Powell raised the concern that grounding (or lack of
grounding) is a critical difference from package model considerations.
Hank Herrmann indicated that AMP Spice models have the ground references
supplied external to the unreference model based on connnections and
based on actual signal/reference-voltage pin assignments.
BIRD32 PACKAGE MODEL ENHANCEMENT
C. Kumar has sent out BIRD32 which expands on BIRD28.3 to provide both
a more comprehensive and a more compact electrical package description.
Even vias could be modeled. A key enhancement is the naming of matrices,
so matrices can be called out in many places. Smaller matrices would be
extracted anyway through field solver analysis.
One concern is the matrix capablility in IBIS 2.1 is not used. Kellee
and Jon Powell would like to see IC vendors to comment on whether they
would put models in that format. Kumar commented that coupled matrix
considerations will be a requirement within a year as speed approach
the 150 MHz and above range.
Stephen Peters indicated that the new proposal has merit, but is not
totally consistent with the proposals to date. It would be beneficial
to look at the complete package picture and produce a totally consistent
extension. One source it to review the BIRD28.3 proposal integrated
in the /wip/ver3_0a file of IBIS unofficial drafts. Bob Ross, Kumar, and
Stephen can work on this, but cannot commit to finishing this before the
Face to Face Meeting.
Bob Ross commented that BIRD32 might be the simplification necessary to
enable such package models to be created. Hank Herrmann indicated that
BIRD32 would help make connector models compact enough to be practical.
The level of electrical description detail versus physical description
detail (of Egg8) would be of concern, but the proposals are complimentary.
This is expected to be discussed at the Face to Face Meeting.
EGG6 - TTL and CMOS
Jon Powell is convinced that the differences can be handled within the
current IBIS Specification, but with a change in test loads to get the
proper dynamic parameters. If permitted, he will report on this at the
Face to Face Meeting.
NEXT MEETING:
The Face-to-Face Meeting is on Monday, January 29, 1996 in Santa Clara, CA.
The next telephone meeting is set for Friday, February 16, 1996.
==============================================================================
NOTES
IBIS CHAIR: Will Hobbs (503) 264-4369, Fax (503) 264-4210
will_hobbs@ccm.jf.intel.com
Server Chipset System Validation 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
The following email addresses are used:
ibis-request@vhdl.org
To join, change, or drop from either the IBIS Open Forum Reflector
(ibis@vhdl.org), the IBIS Users' Group Reflector (ibis-users@vhdl.org)
or both. State your request.
ibis-info@vhdl.org
To obtain general information about IBIS, to ask specific questions
for individual response, and to inquire about joining the EIA-IBIS
Open Forum as a full Member.
ibis@vhdl.org
To send a message to the general IBIS Open Forum Reflector. This
is used mostly for IBIS Standardization business and future IBIS
technical enhancements.
ibis-users@vhdl.org
To send a message to the IBIS Users' Group Reflector. This is
used mostly for IBIS clarification, current modeling issues, and
general user concerns.
Information on IBIS technical contents, IBIS participants, and actual
IBIS models are available on the IBIS Home page:
http://www.eia.org/eig/ibis/ibis.htm
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 Tue Jan 16 16:24:28 1996
This archive was generated by hypermail 2.1.8 : Fri Jun 03 2011 - 09:52:29 PDT