IBIS Open Forum Minutes
Meeting Date: August 20, 2010
Meeting Location: Teleconference
VOTING MEMBERS AND 2010 PARTICIPANTS
Agilent Radek Biernacki*, Ming Yan, Fangyi Rao, Gilbert Berger,
Amolak Badeasa, Jose Pino, Junaid Khan
AMD Nam Nguyen
Ansys (Ansoft Corporation) Danil Kirsanov
Apple Computer (Matt Herndon)
Applied Simulation Technology (Fred Balistreri)
ARM (Nirav Patel)
Cadence Design Systems Terry Jernberg*, Wenliang Dai, Ambrish Varma
Cisco Systems Syed Huq*, Mike LaBonte*, Tony Penaloza, Huyen
Pham,
Bill Chen, Ravindra Gali, Zhiping Yang
Ericsson Anders Ekholm, Pete Tomaszewski
Freescale Jon Burnett, Om Mandhana
Green Streak Programs Lynne Green
Hitachi ULSI Systems Yutaka Uematsu
Huawei Technologies (Jinjun Li)
IBM Adge Hawes, Greg Edlund*
Infineon Technologies AG Christian Sporrer
Intel Corporation Michael Mirmak*, Myoung (Joon) Choi, Vishram Pandit,
Richard Mellitz
IO Methodology Lance Wang
LSI Brian Burdick*
Mentor Graphics Arpad Muranyi*, Neil Fernandes, Zhen Mu
Micron Technology Randy Wolff*
Nokia Siemens Networks GmbH Eckhard Lenski*
Samtec (Corey Kimble)
Signal Integrity Software Walter Katz, Mike Steinberger, Todd
Westerhoff*,
Barry Katz
Sigrity Brad Brim, Kumar Keshavan, Srdjan
Djordjevic,
Ben Franklin
Synopsys Ted Mido, Paul Lo, Geoffrey Ying, Frank Lee
Teraspeed Consulting Group Bob Ross*, Tom Dagostino
Texas Instruments Bonnie Baker
Toshiba Yoshihiro Hamaji
Xilinx Mike Jenkins
ZTE (Huang Min)
Zuken Michael Schaeder, Ralf Bruening
OTHER PARTICIPANTS IN 2010
Actel (Prabhu Mohan)
AET, Inc. Mikio Kiyono
Altera John Oh, Hui Fu
Avago Razi Kaw
Bosch Car Multimedia Rene Steinberg, Patric Kessler
Broadcom Mohammad Ali
Curtiss-Wright John Phillips
ECL, Inc. Tom Iddings
eSilicon Hanza Rahmai
Exar Corp. Helen Nguyen
ICT-Lanto Steven Wong*
JEITA Atsushi Ishikawa
Leading Edge Pietro Vergine
Magna Design Automation Anand Ramalingram
Mindspeed Bobby Altaf
National Semiconductor Hsinho Wu
NetLogic Microsystems Eric Hsu, Edward Wu, Antonio Orphanou, Halil
Civit
NXP Semiconductors Gerald Krasemann
Politecnico di Torino Igor Stievano, Stefano Grivet-Talocia,
Piero Triverio,
Flavio Canavero
Renesas Technology Takuji Komeda
Siemens, AG. Manfred Maurer, Michael Flint
Simberian Yuriy Shlepnev
Span Systems Corporation Vidya (Viddy) Amirapu
Summit Computer Systems Bob Davis
Tabula David Banas
TechAmerica (Chris Denham)
Vitesse Semiconductor Bob McDonough
Independent AbdulRahman (Abbey) Rafiq, Robert Badal
In the list above, attendees at the meeting are indicated by *. Principal
members or other active members who have not attended are in parentheses.
Participants who no longer are in the organization are in square brackets.
UPCOMING MEETINGS
The bridge numbers for future IBIS teleconferences are as follows:
Date Meeting Number Meeting Password
September 10, 2010 200-424-632 IBIS
For teleconference dial-in information, use the password at the following
website:
https://cisco.webex.com/cisco/j.php?J=200424632
All teleconference meetings are 8:00 AM to 9:55 AM US Pacific Time.
Meeting agendas are typically distributed seven days before each Open
Forum. Minutes are typically distributed within seven days of the
corresponding meeting. When calling into the meeting, follow the prompts
to enter the meeting ID. For new, local international dial-in numbers,
please reference the bridge numbers provided by Cisco Systems at the
following link:
http://www.cisco.com/web/about/doing_business/conferencing/index.html
NOTE: "AR" = Action Required.
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INTRODUCTIONS AND MEETING QUORUM
No new participants.
CALL FOR PATENTS
Michael Mirmak called for any patents or pending patents related to the
IBIS 3.2, IBIS 4.2, IBIS 5.0, Touchstone 2.0 or ICM 1.1 specifications. No
patents were declared.
REVIEW OF MINUTES AND ARS
Randy Wolff called for comments regarding the minutes of the July 30, 2010
IBIS Open Forum teleconference. The minutes were approved without changes.
MEMBERSHIP UPDATE AND TREASURER'S REPORT
Michael Mirmak reported that we still have 31 members. He mentioned that
any new logo updates are appreciated.
Bob Ross reported that he is reconciling a new financial report from
TechAmerica. Income from three members is missing. We sold another
parser, so the report should show five for 2010, although it only shows
income for two. We should be in a very positive cash situation this year.
WEB PAGE UPDATES
Syed Huq reported that FAQ, roster and poster pages were updated to reflect
the latest membership. The events page was updated to reflect new summit
information.
MAILING LIST ADMINISTRATION
Mike LaBonte reported that he has had concerns with emails bouncing. Many
rejections are not just for ibis and ibis-users lists but also on ibis-info
and ibis-requests lists. He is keeping track of which lists are causing
problems. He sent another query on interest in a paid smtp server. There
have been no responses yet. There was a request for a new email list: ibis-
summit@eda.org. He put in a request, but the administrator hasn’t added it
yet. Bob Ross asked if we have considered using freelists for IBIS
purposes. Mike’s only concern is that we wouldn’t have eda.org addresses.
Michael Mirmak added that attachments aren’t saved in the archives on
freelists. Mike will look into freelists and report at the next
teleconference.
MODEL LIBRARY UPDATE
No report.
MISCELLANY/ANNOUNCEMENTS
None.
OPENS FOR NEW ISSUES
None.
INTERNATIONAL/EXTERNAL ACTIVITIES
- DASC
Michael Mirmak noted that a new set of meetings is scheduled with the next
one August 26. The DASC file and e-mail archive may be found at:
http://www.dasc.org/
- P1735 Encryption
No update. The IEEE Study Group on Encryption web reflector archives are
found at:
http://www.eda-stds.org/ip-encrypt/hm/
-VHDL-AMS meeting
Arpad Muranyi reported that he did not attend the last meeting. This
subcommittee is working on table-driven models.
-Conferences
Michael Mirmak noted that the IEEE Conference on Electrical Performance of
Electronic Packaging and Systems (EPEPS) is October 24-27, 2010 in Austin,
Texas. There are usually topics of interest to IBIS. More information can
be found at the following link:
http://epeps.ece.illinois.edu/
-Press Update
Bob Ross noted a recent article that mentions IBIS and IBIS-AMI. It is
"Keeping a Lid on Interference" in the July 15, 2010 issue of EDN, pages 26-
32. The article is at:
http://tinyurl.com/2ftjztq
Michael noted that he has seen announcements of webinars from several
companies on multi-gigabit serial differential signaling. Many mention
IBISI-AMI.
TECHAMERICA STATUS
Michael Mirmak reported that TechAmerica’s manuals of procedures and
operations have been updated. These are now available free. There is a
link on the IBIS Open Forum info page for the new manual.
There has also been an offer of training on TechAmerica’s new online
standards system. We are trying to find more details.
IEC APPROVAL ACTIVITIES
Randy Wolff reported that he contacted Stan Krolikoski, the new DASC chair.
Stan responded that he is not directly involved in the IEC process, but he
would forward Randy’s email to several people including Victor Berman.
SUMMIT STATUS
-China Summit Planning
The meeting is at the Four Points by Sheraton hotel in Shenzhen on Tuesday,
November 9. Bob noted that the first announcement went out. Lance Wang
and Bob will handle the signups. There will be vendor tables. The
deadline to submit presentations is October 12 to allow time to print the
booklets. Another announcement may be sent out next week.
-Taiwan Summit Planning
The meeting will be held Friday, November 12 at the Sherwood Hotel in
Taipei near Intel. Sigrity will assist with the registration. Bob
reported that the first announcement will be sent out soon. There is some
discussion with the board on how to handle presentation copies. We may
decide to have a booklet, but that will require an earlier presentation
deadline. The room can handle more than 100 people. Vendor tables will be
arranged. Someone locally will need to handle making copies of the
presentations.
-Japan Summit Planning
Bob reported this will be Monday, November 15 at the JEITA headquarters
near Tokyo Station.
Sponsors should be arranged within the next few weeks. No lunch is planned.
Steven Wong asked if there was a maximum limit to attendees at any of the
summit meetings. Michael Mirmak responded that we do not close the rooms
or set any arbitrary limits. Bob noted that we do require signups,
although these are not rigorously enforced. We usually plan for all the
signed-up attendees as well as a few extras. We are comfortable in the 100-
150 range in Shenzhen and at least 100 in Taipei.
Sponsorship opportunities for all upcoming IBIS summits are available, with
sponsors receiving free mentions in the minutes, agenda, and other
announcements. Contact the IBIS Board for further details.
IBIS QUALITY TASK GROUP
Mike LaBonte reported that they are continuing to study the IEEE Feature
Selective Validation specification. They are trying to understand the
process and what the reports mean. They are working with Professor Orlandi
who developed the FSV1D software. The group is starting with the IBIS
Accuracy handbook as a skeleton for the IBIS Correlation document. They
need to find someone to write the bulk of the document. The group is
meeting every two weeks, and the next meeting is August 31.
The Quality Task Group checklist and other documentation can be found at:
http://www.eda.org/ibis/quality_wip/
IBIS MODEL REVIEW TASK GROUP
No update.
ADVANCED TECHNOLOGY MODELING TASK GROUP
Arpad Muranyi reported that IBIS-ISS discussions have moved to the
Interconnect task group meeting. The ATM group is continuing with AMI
related discussions. They are approaching the end of flow diagram related
discussions. They are reviewing a BIRD from Arpad on terminology cleanup
such as defining float and integer.
Task group material can be found at:
http://www.eda-stds.org/ibis/macromodel_wip/
INTERCONNECT TASK GROUP
Michael Mirmak reported that the group is reviewing the IBIS-ISS document
every other week. They are also talking about Model Connection Protocol
(MCP) on alternate weeks. Steven Wong asked about the IBIS-AMI versus
Stateye labeling. Michael noted that IBIS-AMI is a labeling for a portion
of the IBIS 5.0 specification. There is an IBIS parser. Stateye is freely
developed software not associated with IBIS.
Task group material can be found at:
http://www.eda.org/ibis/adhoc/interconnect/
NEW ISSUES
None.
TSIRD2.1 – BINARY FORMAT SUPPORT
Michael Mirmak received a comment to add a pair of blank lines so some of
the text in the example is easier to read. Bob Ross suggested that this is
just a minor editing task that doesn’t require official changes to the
TSIRD. A vote was called for inclusion of TSIRD2.1 in the next release of
the Touchstone specification, Touchstone 2.1.
The vote was approved with the following vote tally:
Agilent – yes
Cadence – yes
Cisco – yes
IBM – yes
Intel – yes
LSI – yes
Mentor – yes
Micron – yes
Nokia Siemens Networks – yes
SiSoft – yes
Teraspeed - yes
Bob noted that it needs to be discussed how to integrate the TSIRD into the
new specification. He will also plan to discuss with the tschk2 parser
developer plans to update the parser code.
TSCHK2 BUG STATUS
No BUGs to report. Michael Mirmak noted that the source code is available
for purchase.
IBISCHK5 BUG STATUS
Michael Mirmak noted there are no new BUGs to report. All current BUGs
have been classified.
IBISCHK5 UPDATE DEVELOPMENT
Bob Ross reported that nine BUGs are being fixed and two others are being
looked into for possible fixes. He had suggestions for fixing BUG104. It
will require a BIRD, so it is suggested to simply remove the error from the
parser at this time. BUG112 will be changed to “Not a BUG†status based on
further analysis. The developer found that three of the error messages
were wrong in the error code/message mapping table, and he is fixing this.
A BUG report will be filed to address this error.
PULLUP/PULLDOWN RESISTOR DETECTION PROPOSAL
Greg Edlund filed BIRD113. Greg noted that Tom Dagostino had commented
that it was unclear if the information was being used by a simulator to
change any electrical characteristics of the [Model] during simulation.
Greg plans to update the language in the BIRD to clarify that this is
informational only for the purpose of checking. Michael Mirmak suggested
adding that this information is independent of buffer type too, as this
could be found in a Terminator model. He added that all the parameters
under [Model Spec] do not change the buffer behavior but are only
informational for simulators to decide how to process simulation results.
This new information does not even affect simulation results. Greg noted
that he was asked if any of this information could be found in the model I-
V curves already. Greg said that this was not easy to find.
Michael Mirmak commented that chip designs have strapping that changes the
state of the chip during certain events or when certain pin conditions
exist. Is there any information needed to define a state condition for the
weak pullup/pulldown? For instance, if the weak pullup/pulldown is present
at all times, you should see the information in the I-V tables. If it
turns off at some point, it might not be seen in the I-V tables. Mike
LaBonte felt you should have a [Model Selector] if this is the case. Mike
noted that when he does see weak pullup/pulldown data present in the I-V
tables, he usually questions the data and consults datasheets. The BIRD113
information does help confirm that the I-V table data is correct. Greg
added that he plans to request that his vendors add this new information
into their models. He noted that he wants to know whether a weak
pulldown/pullup exists even if it is programmable or static. When
programmable, this will require more work to classify it. Michael added
that it might be useful debug information to know if the weak
pullup/pulldown noted in [Model Spec] should be seen in the I-V tables.
Greg doesn’t think it is that important to flag the weak pullup/pulldown as
static or dynamic. Bob Ross agreed with this statement.
Michael noted that there are line wrap issues in the file. Also, any
changes to the IBIS specification as noted in the BIRD should be noted with
the “|*†syntax. Greg will update this in a BIRD113.1 revision.
Arpad Muranyi asked if the parser would be expected to flag mismatches
between the resistor value and the I-V data. Bob suggested the parser
should not check this. Bob also noted that “K†in 10K in the BIRD should
be lower case. Arpad also preferred that the parameter names have “r†and
“v†in upper-case. Bob also suggested that language be added to specify
what parameters are required such as if a Weak_pull_up_r resistor is
specified, a corresponding Weak_pull_up_V voltage be specified. Randy
Wolff added that he preferred the parameter names be Weak_pullup* and
Weak_pulldown* (no “_â€) to be consistent with the rest of IBIS. Bob
suggested that language be added to note that the actual I-V data
associated with this information would normally apply to the [POWER Clamp]
and [GND Clamp] tables.
Mike LaBonte noted that the example in the BIRD shows both a weak pullup
and a weak pulldown, but he doesn’t think this would ever happen. Michael
noted that there wouldn’t be a reason to have two resistor and voltage
options when only one voltage and one resistor would ever be present. Bob
wondered if you could document any termination with these parameters such
as a strong Vtt termination in DDR. Greg thought this should only document
weak terminations. Bob noted that you would need to define a cutoff of
what would be considered weak. Greg clarified that this information is
meant to screen those nets that don’t use high-speed type, strong
terminations. Greg will update the BIRD for the next teleconference.
IBIS-ISS – STATUS
Michael Mirmak reported that the document is at Revision 0.5. Comments are
welcome.
The work in progress document can be found in the following directory:
http://www.eda.org/ibis/ibis-iss_wip/
NEW ISSUES
Bob noted that there is an issue with the BIRD directory on the website
where there are no line feed/carriage return characters. Michael Mirmak
will fix this page.
NEXT MEETING
The next IBIS Open Forum teleconference will be held September 10, 2010
from 8:00 to 10:00 AM US Pacific Standard Time.
========================================================================
NOTES
IBIS CHAIR: Michael Mirmak (916) 356-4261, Fax (916) 377-3788
michael.mirmak@intel.com
Technical Marketing Engineer, Intel Corporation
1900 Prairie City Rd.,
FM5-239
Folsom, CA 95630
VICE CHAIR: Lance Wang (978) 633-3388
lwang@iometh.com
President / CEO, IO Methodology, Inc.
PO Box 2099
Acton, MA 01720
SECRETARY: Randy Wolff (208) 363-1764, Fax: (208) 368-3475
rrwolff@micron.com
SI Modeling Manager, Micron Technology, Inc.
8000 S. Federal Way
Mail Stop: 01-711
Boise, ID 83707-0006
LIBRARIAN: Anders Ekholm (46) 10 714 27 58, Fax: (46) 8 757 23 40
ibis-librarian@eda.org
Digital Modules Design, PDU Base Stations, Ericsson AB
BU Network
Färögatan 6
164 80 Stockholm, Sweden
WEBMASTER: Syed Huq (408) 525-3399, Fax: (408) 526-5504
huqs@cisco.com
Manager, Hardware Engineering, Cisco Systems
170 West Tasman Drive
San Jose, CA 95134-1706
POSTMASTER: Mike LaBonte (978) 936-2147
milabont@cisco.com
Signal Integrity Engineer, Cisco Systems
Mail Stop BXB01/1/
1414 Massachusetts Ave
Boxborough, MA 01719
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To report ibischk parser BUGs as well as tschk2 parser BUGs. The BUG
Report Form for ibischk resides along with reported BUGs at:
http://www.eda.org/ibis/bugs/ibischk/
http://www.eda.org/ibis/bugs/ibischk/bugform.txt
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IBIS CURRENT MEMBER VOTING STATUS
I/O Buffer Information Specification Committee (IBIS)
|Organization |Interest |Standard|June 15,|July 9,|July |August |
| |Category |s Ballot|2010 |2010 |30, |20, |
| | |Voting | | |2010 |2010 |
| | |Status | | | | |
|Advanced Micro |Producer |Active |- |X |X |- |
|Devices | | | | | | |
|Agilent |User |Active |X |X |X |X |
|Technologies | | | | | | |
|Ansys |User |Inactive|- |- |- |- |
|Apple Computer |User |Inactive|- |- |- |- |
|Applied |User |Inactive|- |- |- |- |
|Simulation | | | | | | |
|Technology | | | | | | |
|ARM |Producer |Inactive|- |- |- |- |
|Cadence Design |User |Active |X |- |X |X |
|Systems | | | | | | |
|Cisco Systems |User |Active |X |X |X |X |
|Ericsson |Producer |Inactive|X |X |- |- |
|Freescale |Producer |Inactive|- |- |- |- |
|Green Streak |General |Inactive|- |- |- |- |
|Programs |Interest | | | | | |
|Huawei |Producer |Inactive|- |- |- |- |
|Technologies | | | | | | |
|Hitachi ULSI |Producer |Inactive|- |- |- |- |
|Systems | | | | | | |
|IBM |Producer |Active |X |X |X |X |
|Infineon |Producer |Inactive|- |- |- |- |
|Technologies AG | | | | | | |
|Intel Corp. |Producer |Active |X |X |X |X |
|IO Methodology |User |Active |X |X |X |- |
|LSI |Producer |Active |- |X |X |X |
|Mentor Graphics |User |Active |X |X |X |X |
|Micron |Producer |Active |- |X |- |X |
|Technology | | | | | | |
|Nokia Siemens |Producer |Active |- |X |X |X |
|Networks | | | | | | |
|Samtec |Producer |Inactive|- |- |- |- |
|Signal Integrity|User |Active |X |X |X |X |
|Software | | | | | | |
|Sigrity |User |Inactive|- |- |- |- |
|Synopsys |User |Inactive|X |- |- |- |
|Teraspeed |General |Active |X |X |X |X |
|Consulting |Interest | | | | | |
|Texas |Producer |Inactive|- |- |- |- |
|Instruments | | | | | | |
|Toshiba |Producer |Inactive|X |- |- |- |
|Xilinx |Producer |Inactive|- |- |- |- |
|ZTE |User |Inactive|- |- |- |- |
|Zuken |User |Inactive|- |- |- |- |
Criteria for Member in good standing:
• Must attend two consecutive meetings to establish voting membership
• Membership dues current
• Must not miss two consecutive Meetings
Interest categories associated with TechAmerica ballot voting are:
• Users - Members that utilize electronic equipment to provide services
to an end user.
• Producers - Members that supply electronic equipment.
• General Interest - Members are neither producers nor users. This
category includes, but is not limited to, Government, regulatory
agencies (state and federal), researchers, other organizations and
associations, and/or consumers.