IBIS Macromodel Task Group Meeting date: 14 May 2013 Members (asterisk for those attending): Agilent: * Fangyi Rao Radek Biernacki Altera: David Banas Julia Liu Hazlina Ramly Andrew Joy Consulting: Andy Joy ANSYS: Samuel Mertens * Dan Dvorscak * Curtis Clark Steve Pytel Luis Armenta Arrow Electronics: Ian Dodd Cadence Design Systems: Terry Jernberg * Ambrish Varma Feras Al-Hawari Brad Brim Kumar Keshavan Ken Willis Cavium Networks: Johann Nittmann Celsionix: Kellee Crisafulli Cisco Systems: Ashwin Vasudevan Syed Huq Ericsson: Anders Ekholm IBM: Greg Edlund Intel: * Michael Mirmak Maxim Integrated Products: Mahbubul Bari Hassan Rafat Ron Olisar Mentor Graphics: * John Angulo Zhen Mu * Arpad Muranyi Vladimir Dmitriev-Zdorov Micron Technology: Randy Wolff Justin Butterfield NetLogic Microsystems: Ryan Couts Nokia-Siemens Networks: Eckhard Lenski QLogic Corp. James Zhou SiSoft: * Walter Katz * Todd Westerhoff Doug Burns * Mike LaBonte Snowbush IP: Marcus Van Ierssel ST Micro: Syed Sadeghi Teraspeed Consulting Group: Scott McMorrow * Bob Ross TI: Casey Morrison Alfred Chong Vitesse Semiconductor: Eric Sweetman Xilinx: Mustansir Fanaswalla Ray Anderson The meeting was led by Arpad Muranyi ------------------------------------------------------------------------ Opens: - None -------------------------- Call for patent disclosure: - None ------------- Review of ARs: - Fangyi update BIRD 156 per task group feedback - Finished but not yet distributed - Walter to write new BIRD for [Repeater/Retimer Pin] keywords. - in progress - In agreement with Fangyi ------------- New Discussion: Interconnect Task group report - Discussed newly posted EMD draft 8 - Discussed early draft of what is now officially BIRD 161 Fangyi showed the updated BIRD 156: - Fangyi: All "input" changed to "RX", "output" to "TX" - Arpad: Where would this go into the spec? - Fangyi: This would have its own chapter - Arpad: That should be stated - Fangyi: It is clarified that the flow is the same with or without GetWave - Ambrish: That seems redundant - Todd: This is close enough - Fangyi: Numbers are now used for each section - Arpad: It should be clarified that the triangle symbol is for the whole model here, not just the analog portion - Fangyi added language to clarify this - More discussion about how the figures should look - Bob: Can the redrivers be cascaded without channels? - Todd: Being practical there will always be etch between redrivers - Ambrish: In step 8 the analog waveform is the RX decision point? - We should be able to reference that term in the spec to explain what we mean - Fangyi: A redriver may not have a decision point - I would rather call it the output - Ambrish: It would be good to cross reference that spec section - Todd read from the spec section - Fangyi: We must avoid the term "decision point" - Todd: We could refer back to section 10.2.3.2 step 8 - There is not much risk in this - Ambrish: What if people are not doing AMI simulation? - Fangyi: We decided that Walter will clarify it in [Repeater Pin] - Ambrish: They might try to simulate anyway - Todd: The standard does not say what tools do with the information - Bob: The spec will make it illegal for a redriver to not use AMI models - Michael M: We can say this does not apply to legacy models - That allows us to define how those might be used later - Ambrish: We need a line like that - Bob: Should the [Model] have a keyword to say it is a redriver? - Todd: The simulator must know: 1 Whether two pins form a repeater 2 Whether it is a redriver or retimer - Arpad: I would like to see the statistical section - Fangyi: This is one sentence - Todd: We should discuss what "combined" means - Arpad: "redriver can be calculated" does not sound right - Ambrish: The full sentence says the "impulse of" can be ... - Fangyi: A redundant section about flow was removed ------------- Next meeting: 21 May 2013 12:00pm PT ------------- IBIS Interconnect SPICE Wish List: 1) Simulator directives