Minutes, IBIS Quality Committee 09 jan 2007 11-12 AM EST (8-9 AM PST) ROLL CALL Adam Tambone Barry Katz Benny Lazer Benjamin P Silva * Bob Ross, Teraspeed Consulting Group Brian Arsenault David Banas, Xilinx Eckhard Lenski Eric Brock Gregory R Edlund Hazem Hegazy John Figueroa John Angulo Katja Koller Kevin Fisher Kim Helliwell, LSI Logic Lance Wang Lynne Green * Mike LaBonte, Cisco * Moshiul Haque, Micron Technology Peter LaFlamme * Radovan Vuletic, Qimonda Robert Haller * Roy Leventhal, Leventhal Design & Communications Sherif Hammad Todd Westerhoff Tom Dagostino Kazuyoshi Shoji Sadahiro Nonoyama Everyone in attendance marked by * NOTE: "AR" = Action Required. -----------------------MINUTES --------------------------- Mike LaBonte conducted the meeting. AR Review: - Mike ask the IBIS Secretary to delete "acting" before his name as chairman. Not discussed. New items: We had a short discussion about MeetingPlace problems. Only Mike succeeded in running the web sharing tool. Others got a web page that timed out, never displaying anything. Roy mentioned the feature selective validation method used in the frequency domain. This probably can be adapted to validating time domain waveforms. It might be used for correlation, and is possibly better than the "area between curves" method. Reminder: neither David nor Roy are able to deliver their presentation at the upcoming summit. Radovan asked about the status of the checklist. The "Checklist" link on our web page has only the checklist spreadsheet document. A more complete kit containing the spreadsheet, specification, presentation, and sample IBIS file was uploaded 4 oct 2004. This needs to be brought to the top level. Caveat: it is all based on the 1.0 IQ spec. AR: Mike put complete checklist kit under web site "Checklist" link IQ Spec review Mike described the formatting changes made. It now has a revision history table and a table of contents. Text style changes needed to accomplish that are complete only up to section 4.3.9. Mike now despises MSWord. The Purpose section will be moved above Revision History. We again reviewed section 2.1. - It was noted that IBISCHK could be modified to make the documentation best practice easier, if it printed it's output in valid IBIS comment format. - Some discussion about use of the X designator: - Mostly a flag to indicate there is something unusual about the model. - Zero-crossing warning may not be a problem for diff buffer, for example. Terminated buffer never operates in that region. - Do not want to overuse it. - Need to discuss this when Kim can join us, since he has slides on the topic. - Roy suggested that the 2nd sentence of the paragraph about [IBIS Ver] might be better off in the IBIS Cookbook. - It looks more like guidance than a quality requirement. - Mike felt that some pressure to make IC vendors use version beyond 2.1 is warranted, to discourage model makers from omitting newer features just because a 2.1 infrastructure is entrenched. - Vref/Vmeas example: - Certain technologies do have fixed Vref and Vmeas, and only 2.1 is needed. - But many buffers are timed with Vref/Vmeas that shift with power voltage. These need [Model Spec], a 3.X feature. - Mike has seen IBIS 2.1 files that need [Model Spec]. - In the end we decied to leave the paragraph as-is. - Other small changes made. AR: Roy write "IBIS comment format" parser bug. Will not get to it right away. AR: Mike post new IQ specification with review updates. Next meeting: 16 Jan 2007 11-12 AM EST (8-9 AM PST) Phone: 1.877.384.0543 or 1.800.743.7560 ID: 2102026 Web access: http://meetingplace.cisco.com/join.asp?2102026 Meeting ended at 12:16 PM Eastern Time.