DATE: 3/21/00 SUBJECT: 3/17/00 EIA IBIS Open Forum Meeting Minutes VOTING MEMBERS AND 2000 PARTICIPANTS LIST: 3Com Roy Leventhal* Agilent (EEsof, etc.) Mark Chang Hewlett Packard Paul Gregory Applied Simulation Technology Raj Raghuram*, Norio Matsui, Fred Ballesteri Avanti Nikolai Bannov Cadence Design Mike LaBonte*, Todd Westerhoff, Ian Dodd*, Donald Telian Cisco Systems Syed Huq, Irfan Elahi, John Fisher Compaq Bob Haller*, Peter LaFlamme, Ron Bellomio, Shafier Rahman, Doug Burns Cypress (Rajesh Manapat) EMC Corporation (Fabrizio Zanella), Fairchild Semiconductor Craig Klem H.A.S. Electronics (Haruny Said) HyperLynx (& Pads Software) Matthew Flora*, Kellee Crisafulli*, Gene Garat, John Angulo*, Al Davis, Lynne Green IBM Michael Cohen* Incases (Werner Rissiek) Intel Corporation Stephen Peters*, Arpad Muranyi*, Will Hobbs, Richard Mellitz LSI Logic (Larry Barnes) Mentor Graphics (& Veribest) Bob Ross*, Tom Dagostino, Malcolm Ash, Kim Owen Mitsubishi Shahab Ahmed Molex Incorporated Gus Panella* Motorola Ron Werner National Semiconductor Milt Schwartz* North East Systems Associates Edward Sayre, Tony Sinker NEC (Hiroshi Matsumoto) Nortel Networks Steve Coe, Calvin Trowell*, Hassan Ali* Philips Semiconductor D.C. Sessions (& VLSI Technology) Quantic EMC (Mike Ventham) Siemens Bernhard Unger SiQual Scott McMorrow, Wis Macomson Texas Instruments Stephen Nolan, Ramzi Ammar, Mac McCaughey, Thomas Fisher Time Domain Analysis Systems Dima Smolyansky, Steven Corey Via Technologies (Weber Chuang) Viewlogic Systems Chris Rokusek, Guy de Burgh*, Jun Tian, (Jon Powell) OTHER PARTICIPANTS IN 2000: Actel Corp. Silvia Montoya Advansis Mikio Kiyono Brocade Communications Robert Badal EIA Cecilia Fleming* Jet Propulsion Lab John Treichlew Rockwell Collins Ron Hau Signals & Systems Engineering Tom Hawkins Sun Microsystems Victor Chang Xilinx, Inc. Susan Wu 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 Bridge Number Reservation # Passcode March 31, 2000 - DATE 2000 IBIS Summit Meeting (No Bridge) April 14, 2000 (916) 356-9200 8-97978 5851557 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 AND MEETING QUORUM Bob Ross noted that Viewlogic Systems plans to officially ratify its name change to Innoveda on Monday March 27th. Hassan Ali, an Engineer from Nortel Networks joined and is interested in IBIS in relationship to the high-speed board issues at the tools level. MEMBERSHIP UPDATE AND TREASURER'S REPORT Cecilia Fleming stated that there were no new updates on new members or payments. Reminder invoices have been sent out. Bob Ross asked Guy de Burgh to work with Bob and Cecilia to follow up on some of the members to find out what their payment status is. REVIEW OF MINUTES AND AR'S Bob Ross reported that the February 25, 2000 minutes had a used an incorrect heading for the JC-16.2 report. Also, Stephen Nolan sent a note to Bob that the reference to JC-42 should be changed to JC-40 for the Atlanta JEDEC meeting under the JEDEC/IBIS Working Group meeting report. The above minutes were approved as modified above. The AR's will be discussed during the meeting. MISCELLANY/ANNOUNCEMENTS Bob Ross briefly noted that the anonymous FTP access to eda.org was down while more security measures were installed to track access. It is now up again. Bob noted that the DesignCon 2000 proceedings and CDs are available at a discount to IBIS Member companies employees. A form was sent out on the reflectors. The intent was to FAX the form back, since there was not any return e-mail address on the form. PRESS AND WEB PAGE UPDATES Bob Ross noted that Syed Huq updated the Upcoming Events links and also made some IBIS Participation Roster phone number changes and also added a link. NEW MODELS AVAILABLE, LIBRARY UPDATE None OPENS FOR NEW ISSUES Michael Cohen on New Technologies - introduced near the end of the meeting. INTERNATIONAL/EXTERNAL PROGRESS - IEC 62014-1 (IBIS Version 3.2) - Cecilia Fleming reported that she is finding out more about the status. The publication time should take only two months, not eight. IEC approved the document December, 1999. - pr EIAJ ED-5302 Standard for I/O Interface Model for Integrated Circuits (IMIC) - Bob Ross stated hearing from Dr. Hideki Fukuda (on short sabbatical) that a write-up of the last IBIS Summit Meeting appeared in the Nikkei News. The IMIC group is interested in looking at proposed improvements that were discussed and are meeting on March 23, 2000 to discuss their future plans. The group is interested in how IBIS future specifications will relate to IMIC. - IEC PWI 93-1 Models of Integrated Circuits for EMI Behavioral Simulation (formerly designated as IEC 93/67/NP IBIS and EMC Simulation) - Bob Ross still plans to meet with the group in Paris on Thursday, March 30, 2000, just before the IBIS Summit Meeting. - JEDEC JC-16 - (Heading is changed to JC-16 since D.C. Sessions now is the Chair of JC-16). Bob Ross did not have a report of the JEDEC meeting held last week in Atlanta, Georgia. DATE2000 IBIS SUMMIT PLANNING Bob Ross reported on the DATE2000 IBIS Summit meeting associated with the Design Automation and Testing in Europe conference is planned to be held in Paris, France on Friday, March 31, 2000. The meeting is planned to run from about 8:30 AM to early afternoon to allow people to return that evening. The co-sponsors of the meeting are Cadence Design, Incases, Mentor Graphics and Viewlogic Systems. The meeting will be held in the Concorde-Lafayette Hotel, adjacent to where DATE2000 is being held. The arrangements include refreshments and a free lunch for all participants. The tentative agenda for presentations is as follows: Siemens IBIS Modeling Requirements for Semiconductor Vendors Gerald Bannert, Siemens Tips and Tricks for Creating IBIS Models Cary Mandel, Viewlogic Systems IBIS Accuracy Studies Sherif Hammad, Mentor Graphics TC93WG6 EMC/EMI IC Model Standardization Report Jean Claude Perrin, Texas Instruments Behavioral Receiver Modeling Patrick Dos Santos, Cadence Design Systems IBIS Future Activities (and Discussion) Bob Ross, Mentor Graphics So the content of this meeting is to share information on IBIS modeling techniques and discuss future technical and specification needs. Open discussions and Ad hoc presentations will be encouraged on these and other topics during the meeting. The official agenda will be sent out next week. DAC2000 IBIS Summit Meeting Bob Ross discussed the plans for the IBIS Summit Meeting held annually along with the Design Automation Conference (DAC). The meeting will take place in Los Angeles, California, and a room has been reserved for Thursday, June 8, 2000. The trade show portion of DAC is held from Monday through Wednesday June 5-7, 2000 at the Los Angeles Convention Center. Along with election of IBIS Open Forum officers, Bob indicated that the IBIS Summit Meeting would probably have a few presentations and discussions related to topics of current interest. Connector Specification ratification issues would probably be discussed. Michael Cohen stressed that the IBIS Meeting should not conflict with the DAC2000 show. Kellee Crisafulli thought it would useful to also hold an all day IBIS futures meeting at that time. Bob suggested that the morning could be devoted to the IBIS Open Forum issues, and the afternoon could be reserved for the working group status. Kellee indicated that a full day would be more useful. So the likely plan is to have the IBIS meeting on Thursday, and the Working Group meeting on Friday. Bob asked Guy de Burgh to handle the registration logistics. Bob noted that the IBIS home page Upcoming events link already contains Guy's name and some information about DAC2000 and the IBIS Summit Meeting. COOKBOOK STATUS Stephen Peters had no report. IBIS MODEL REVIEW COMMITTEE DISCUSSION Matthew Flora reported that a model from Tundra Semiconductor has been sent out for review. Matthew received another model, but it needs some corrections before being sent out. BIRD62.5 ENHANCED CHARACTERIZATION OF RECEIVER THRESHOLDS Stephen Peters briefly summarized some changes made since the last meeting. A few editorial corrections were made. The input edge rate subparameter was split into Input_edge_rate_ser and Input_edge_rate_der to document separately single ended receiver (_ser) and differential receiver (_der) entries. Also, incorrect references to relationship of the Vcross_low and Vcross_high subparameters to min and max columns were removed. Bob Ross spotted several more minor spelling errors and noted the examples for Input_edge_rate_* still had the "=" sign. Bob then indicated that he really preferred using Tslew_ac and Tdiffslew_ac instead of the Input_edge_rate_ser and Input_edge_rate_der. Often a generic 1V/1ns is used as the basis. Since we are defining the Input_edge_rate for just the delta Vin*_ac or Vdiff_ac value, we will have to calculate the delta T. Furthermore, since the simulators are interested only in the delta T between crossing the Vin*_ac or Vdiff_ac voltages, the Tslew_ac and Tdiffslew_ac subparameters would give directly the test times of interest. Bob indicated that we scheduled BIRD62.5 for a vote. John Angulo questioned whether we wait on voting because the IBIS future plans were not resolved. Several others indicated that BIRD62.5 was considered important by the JEDEC committee. Bob indicated that current IBIS future plans would need to deal with this same specification. So BIRD62.5 was applicable to both the current upgrade of IBIS (Version 4.0) and some future direction of IBIS. Bob suggested that we amend BIRD62.5 at the meeting to have the revised subparameters and vote on BIRD62.5. However, Bob noted that the text describing the subparameters would have to be updated. Kellee Crisafulli stated that we really needed to see the changes before voting on them. Bob agreed. Michael Cohen suggested quickly issuing BIRD62.6 and holding an e-mail vote. After some discussion about the urgency of BIRD62.6, we agreed that the committee in effect agreed with pending BIRD62.6, but would hold the formal ratification vote at the next teleconference meeting (scheduled on April 14, 2000). Bob noted that it is possible to modify the content as part of the overall next version of IBIS ratification process. AR - Stephen Peters make the changes discussed at the meeting as noted above, and issue BIRD62.6. [Done] BIRD63.3 DOCUMENTATION OF RECEIVER SETUP AND HOLD TIMING CONDITIONS Bob Ross called for a vote on BIRD63.3. We planned to reject BIRD63.3 since the information of interest was added to BIRD62.5. BIRD63.3 was rejected by a 0 Yes, 12 No vote. BIRD66 - [Model Spec] Vref ADDITION Bob Ross indicated that there may be some discussion on this topic in the future since there were some conflicting interpretation of how Vmeas should be used. IBIS BUG TRACKING Bob Ross stated that he had planned to issue BUG34 for review and issue several other BUG reports per some previous IBIS meeting discussions. However, he did not have time to this. So this topic is deferred again. CONNECTOR PROPOSAL REVIEW (CONTINUED) Bob Ross reported that Bob, Gus Panella, and Kellee Crisafulli held telephone "editorial committee" meetings on March 8, 2000 and March 14, 2000 to resolve off-line a number of editorial and technical issues. This will save using IBIS Open Forum teleconferences to deal with minor points. Bob stated that the group reached agreement on many issues. Kellee stressed that we still want to finalize the Connector Specification and vote on it by the DAC2000 time frame. Gus reaffirmed the pressure to get the Connector Specification finalized as soon as possible. Bob stated that he expects that mid-2000 ratification is possible. He has enlisted the help of several connector experts to review the proposed specification after it is stabilized. Bob briefly listed (without elaboration) the points of agreement: Keep proposed keyword convention including having four words Keep Revision History Section, but clear the existing history in the ratified Version 1.0 Keep reserved words PWRGND and RET Line limit of 120 characters (agreed at the January 31, 2000 meeting) Make the 100,000 pin limit a warning, not a requirement Keep the number of decimal digits at five recommended, 15 maximum Keep the Begin/End syntax for descriptions Allow file names of 40 characters (IBIS has 20) to resolve an inconsistency Use the extension .icm (as agreed at the January 31, 2000 meeting) Make the specified number of text lines a recommendation Have only one occurrence of [Begin_Cn_Model_Family] Use [Support] instead of [Email] and [Web] (as agreed at the January 31, 2000 meeting) Keep [Redistribution], but allow Yes, No, and Specified where the actual conditions are stated Keep the requirement that .jpg or .txt are the only formats for pictures since other formats could be added later Keep SGR for SLM formats only, but some details are still being resolved Allow Cn_section to have more that one cascaded section named on the same line (still resolving details) Several other editorial changes including [Comment_Char] can follow first keyword as in IBIS Individuals are still permitted to question these decisions as part of the ratification processes, but we have agreed on the above points regarding the content of the proposed Connector Specification document. More points will be considered at subsequent meetings. Kellee plans to provide an updated Version 0.94 version. Upon further review another revision or two may be needed. Bob stated that when we reach further agreement on these details, we will need to update at least some of the examples. Gus plans to do this. Bob stated that one nice technical feature was to support a variety connector formats for Physical connectors using a Defined Physical Pin Physical connectors using Swath Matrix ([Begin_Cn_Swath]) Auto generated connectors using the Swath Matrix and [Begin_Cn_Auto_Map]. The user would specify the number of connector pins for the auto generated connector and the simulator would read the information contained in the .icm file to generate that connector. The technical challenge is to ensure that all the rules and information are consistent. Just simultaneously specifying number of pins, number of rows, and number of columns may introduce an inconsistency that must be checked. Bob gave an example illustrating further complication. The physical connector could have between 10 and 200 pins spanning the smallest 2 rows, 5 column connector to the largest one with 2 rows and 100 columns. The Swath Matrix could be defined as a 2 by 3 matrix. We need to check that all of the information and stated rules work in consistent manner. Bob noted that there already was a conflict between required ModelPinMap entry of [Begin_Cn_Model] and the fact that the keyword [Begin_Cn_Pin_Map] is optional and not used when [Begin_Cn_Auto_Map] is specified. These and other syntactical contradictions have to be checked and resolved. Otherwise, they will become parser development issues. Kellee wanted these meeting to continue on a regular basis. Because of the IBIS Summit Meeting in Paris and other travels, Bob cannot attend these meetings until after April 3, 2000. Bob stated that these meetings are open to any who is interested and requested the Guy de Burgh and Mike LaBonte join in this editorial review activity. The main concern will be to discuss ideas related to the above technical issues to deal with some syntactical changes to simplify some of the keyword parameter variations and reduce some possible occurrences of conflicting information. IBIS FUTURES (IBIS-X, API, BIRDxx) Stephen Peters reported that he held some internal meetings with Arpad Muranyi and Dave Coleman and plans to hold an IBIS Futures Working Group meeting on March 30, 2000 or March 31, 2000 at some West Coast location. So far there is sufficient interest to hold the meeting. Stephen named several individuals likely to attend. The purpose of the meeting is to gather people who have ideas on future directions to review their proposals and reach a consensus that will lead to a draft proposal. While several people are members of the IBIS Futures Working Group, other people who are interested are welcome to attend. Arpad commented that he wants a smaller group who are willing to contribute and produce a consensus proposal. It might be counter-productive to have too large of a group. Bob Ross does not expect that the group will be too large. BIRD61.1 - ENHANCED CHARACTERIZATION OF RECEIVERS Not Discussed. BIRD64.1 - PACKAGE MODE SELECTOR Not Discussed. BIRD65 - C_comp REFINEMENTS Arpad Muranyi stated that the BIRD65 concept of specifying what rails portions of C_comp are attached has been implemented commercially. However, the implementation format was based on using percentage rather than actual capacitance values, as proposed in BIRD65. Arpad asked whether he should change BIRD65. After some consideration, the group felt that the BIRD65 format was all right as is. Values are translatable into the percentage format and also the direct entry of actual data was consistent with nearly all other subparameter specifications. NEW TECHNOLOGIES Michael Cohen questioned how to the IBIS Open Forum would deal with some new technologies that are being realized in silicon by some major vendors. These deal with new current sensitive or current steering techniques. The details are still proprietary. Bob Ross stated that if it is possible to describe in a behavioral manner the fundamental aspects, then a BIRD should be proposed. This has been done for some other additions to IBIS. Bob agreed to work off-line with Michael to clarify this issue further. NEXT MEETING: The next meeting will be the IBIS Summit Meeting in Paris, France on Friday, March 31, 2000 from 8:30 A.M. to 2:00 P.M. There are no teleconference connections for this meeting. The next teleconference meeting will be on Friday, April 14, 2000 from 8:00 AM to 10:00 AM. BIRD62.6 will be scheduled for voting. ============================================================================== NOTES IBIS CHAIR: Bob Ross (503) 685-0732, Fax (503) 685-4897 bob_ross@mentor.com Modeling Engineer, Mentor Graphics 8005 S.W. Boeckman Road, Wilsonville, OR 97070 VICE CHAIR: Stephen Peters (503) 264-4108, Fax: (503) 264-4515 sjpeters@ichips.intel.com Senior Hardware Engineer, Intel Corporation M/S JF1-209 2111 NE 25th Ave. Hillsboro, OR 97124-5961 SECRETARY: Guy de Burgh (805) 988-8250, Fax: (805) 988-8259 gdeburgh@viewlogic.com Senior Manager, Viewlogic Systems 1369 Del Norte Rd. Camarillo, CA 93010-8437 LIBRARIAN: Jon Powell (805) 988-8250, Fax: (805) 988-8259 jpowell@viewlogic.com Senior Scientist, Viewlogic Systems 1369 Del Norte Rd. Camarillo, CA 93010-8437 WEBMASTER: Syed Huq (408) 525-3399, Fax: (408) 526-5504 shuq@cisco.com Signal Integrity Engineer, Cisco Systems 170 West Tasman Drive San Jose, CA 95134-1706 POSTMASTER: Matthew Flora (425) 869-2320, Fax: (425) 881-1008 mbflora@hyperlynx.com Senior Engineer, HyperLynx, Inc. 114715 N.E. 95th Street Redmond, WA 98052 This meeting was conducted in accordance with the EIA Legal Guides and EIA Manual of Organization and Procedure. The following e-mail addresses are used: ibis-request@eda.org To join, change, or drop from either the IBIS Open Forum Reflector (ibis@eda.org), the IBIS Users' Group Reflector (ibis-users@eda.org) or both. State your request. ibis-info@eda.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@eda.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. Job posting information is not permitted. ibis-users@eda.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. Job posting information is not permitted. ibischk-bug@eda.org To report ibischk2/3 parser bugs. The Bug Report Form Resides on eda.org in /pub/ibis/bugs/ibischk/bugform.txt along with reported bugs. To report s2ibis, s2ibis2 and s2iplt bugs, use the Bug Report Forms which reside under eda.org in /pub/ibis/bugs/s2ibis/bugs2i.txt, /pub/ibis/bugs/s2ibis2/bugs2i2.txt, & /pub/ibis/bugs/s2iplt/bugsplt.txt respectively. Information on IBIS technical contents, IBIS participants, and actual IBIS models are available on the IBIS Home page found by selecting the Electronic Information Group under: http://www.eia.org/eig/ibis/ibis.htm Check the pub/ibis directory on eda.org for more information on previous discussions and results. You can get on via FTP anonymous. ==============================================================================