IBIS Macromodel Task Group Meeting date: 23 Oct 2012 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 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 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 Sigrity: Brad Brim Kumar Keshavan Ken Willis 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: - Walter send BIRD 121.2 draft 7 to Mike for posting - Done - Walter & Arpad clear up BIRD 121 draft language - Done, draft 8 - Mike check BIRD 121.2 draft 6 for correct numbering inside - Fixed - Walter & Ambrish clean up BIRD 150 - In progress - Walter update BIRD 123 - Walter: Radek planned to check the clock PDF section - Radek: In 5.0 we had the RjDj option, should be included here - Walter's motion to submit the BIRD was delayed ------------- New Discussion: - Interconnect task group report: - Walter: Last week was mostly a presentation by me - There has been an email thread about what can be in a package - We might make part of the model dependent of the die, part on the package Arpad showed BIRD 121.2 draft 8: - Arpad: Bob had asked for a change to the description field - Added clarification "current working directory of DLL process" - Ambrish: The description needs to be fixed to "where the DLL is located" - Arpad made the change - John: We should be clear that it is a process running the DLL - Bob: Do we have to spell out which Supporting_Files are files and directories? - Mike: The tool can figure that out easily - Arpad: We should be clear about forward and backward slashes - Radek: It does not say if the path - John: The contents of directories should be copied - Ambrish: That should be documented - Bob: We need to say if paths are allowed - Walter: We would not allow paths to items in subdirectories - Radek: We should allow that - Arpad: We should say that a subdirectory item in a copied directory just copies the directory AR: Walter add slash and directory clarifications to BIRD 121.2 Walter motioned to submit the BIRD 123 update in current form to Open Forum: - Arpad: There have been no recent changes - Radek seconded the motion - Arpad showed the BIRD - Ambrish: Is numeric literal correct? - Bob: Default is optional - No one objected to the motion AR: Arpad send BIRD 123 draft 5 to Open Forum BIRD 150 was tabled Arpad: Fangyi mentioned repeaters - We will schedule time for his proposal Ambrish showed Back-Channel Support BIRD draft 3: - Ambrish: This is now in the IBIS 5.1 document format - It proposes the "Bits" type - It has Training and Backchannel_Protocol parameters in the .ami file - A number of other parameters are defined for the .bci file - Bob: The Format of Training_Done is not right - It should not have a Default - Description has to be a string - Mike: Is the .bci file written incrementally? - Ambrish: It is written once - Walter: It is read-only, supplied with the AMI file - Bob: Does the .bci file have a version number? - Ambrish: It could have [BCI Version] - Walter described IBIS spec update scenarios - It probably would be best to have [BCI Version] - Ambrish: I will add this - Walter: There are industry standards for backchannel protocol - We should have real examples to work with - Ambrish: There may be issues getting this from an IC vendor - Alfred: I might be able to create an example - Radek: We should allow newer .bci files with older .ami files - Walter: The protocol could specify things only the tool needs to know Arpad: We should finish the two BIRDs in progress then focus on backchannel ------------- Next meeting: 23 Oct 2012 12:00pm PT Next agenda: 1) Task list item discussions ------------- IBIS Interconnect SPICE Wish List: 1) Simulator directives