Minutes, IBIS Quality Committee 18 Dec 2007 11-12 AM EST (8-9 AM PST) ROLL CALL Adam Tambone Barry Katz, SiSoft Benny Lazer Benjamin P Silva Bob Cox, Micron * Bob Ross, Teraspeed Consulting Group Brian Arsenault * David Banas, Xilinx * Eckhard Lenski, Nokia Siemens Networks Eric Brock * Guan Tao, Huawei Technologies Gregory R Edlund Hazem Hegazy John Figueroa John Angulo, Mentor Graphics Katja Koller, Nokia Siemens Networks Kevin Fisher * Kim Helliwell, LSI Logic Lance Wang, IOMethodology Lynne Green * Mike LaBonte, Cisco Systems Mike Mayer, SiSoft * Moshiul Haque, Micron Technology Peter LaFlamme * Randy Wolff, Micron Technology Radovan Vuletic, Qimonda Robert Haller, Enterasys Roy Leventhal, Leventhal Design & Communications Sherif Hammad, Mentor Graphics Todd Westerhoff, SiSoft Tom Dagostino, Teraspeed Consulting Group Kazuyoshi Shoji, Hitachi Sadahiro Nonoyama Everyone in attendance marked by * NOTE: "AR" = Action Required. -----------------------MINUTES --------------------------- Mike LaBonte conducted the meeting. Call for patent disclosure: - No one declared a patent. AR Review: - Mike change 5.2.16 to level 2 - Done - Moshiul ask Randy Wolff to join next IQ meeting - Done - Mike look into ibischk checks for [Receiver Thresholds] - Done - Mike send minutes from prior meeting on Receiver Thresholds] - Done - Mike change text of 5.2.16 to require basis documentation - TBD - David produce response to JEITA - 31% done New items: - Eckard Lenskie sent a presentation to the list - Tries to put [Receiver Thresholds] concepts in pictures. - Bob: IQ checks mimic IBIS spec - Next meeting is 8 Jan - Randy Wolff: discussion of [Receiver Thresholds] - It was added to allow for DDR1, especially diff inputs - JEDEC gives both AC & DC noise specs, but [Receiver Thresholds] doesn't split it up this way - Bob: It allows for threshold_sensitivity and selectable references - AC and DC noise are added to Vth - Combination of Vth_max/Vth_min + Threshold_sensitivity gives 9 different thresholds to measure - Eckhard's presentation shows this on slide 10 - The original BIRD did not have Threshold_sensitivity - Discussion of Eckhard presentation from 2004 - Moshiul: Are there any examples other than DDR? - Mike: Could LVDS use [Receiver Thresholds]? - Bob: Diff specs use different language, may not say AC/DC - Randy: [Receiver Thresholds] has been used for RLDRAM - Bob: Tslew is probably obsolete - Randy: Usually some large time value is put in - The Tslew parameter is a minimum slew rate to guarantee timing - Randy: Working on a BIRD to cover derating based on slew rate - JEDEC has tables relating timing adjustements to slew rate - SiSoft implements this outside of IBIS - Mike: Maybe IQ should not cover Tslew - Moshiul: We could suggest putting in a high value - Randy: - It would be good to tie data to a specific operating frequency. - Currently we need [Model Selector] for different frequencies AR: Mike Post Eckhard's presentation to web site Next meeting: 08 Jan 2008 11-12 AM EST (8-9 AM PST) Phone: 1.877.384.0543 or 1.800.743.7560 Passcode: 90437837 Meeting ended at 12:06 PM Eastern Time.