IBIS Macromodel Task Group Meeting date: 19 December 2023 Members (asterisk for those attending): Achronix Semiconductor: Hansel Dsilva Amazon: John Yan ANSYS: * Curtis Clark Wei-hsing Huang Aurora System: * Dian Yang * Raj Raghuram Cadence Design Systems: * Ambrish Varma Jared James Dassault Systemes: Longfei Bai Google: Hanfeng Wang GaWon Kim Intel: * Michael Mirmak Kinger Cai Chi-te Chen Liwei Zhao Alaeddin Aydiner Keysight Technologies: Fangyi Rao Majid Ahadi Dolatsara Stephen Slater Ming Yan Rui Yang Marvell: Steve Parker Mathworks (SiSoft): * Walter Katz Graham Kus Micron Technology: Justin Butterfield Missouri S&T: Chulsoon Hwang Yifan Ding Zhiping Yang Rivos: Yansheng Wang SAE ITC: Michael McNair Siemens EDA (Mentor): * Arpad Muranyi * Randy Wolff Teraspeed Labs: * Bob Ross Zuken USA: Lance Wang The meeting was led by Arpad Muranyi. Curtis Clark took the minutes. -------------------------------------------------------------------------------- Opens: Arpad noted that the next two regularly scheduled meeting are cancelled: December 26, 2023 (cancelled) January 02, 2024 (cancelled) ------------- Review of ARs: Michael: Send out draft17 of the AMI Test Data proposal including more feedback from the ATM meeting and update the full syntax example accordingly. - Done. Michael: Develop a full syntactically complete example demonstrating the AMI Test Data proposal. - In progress. -------------------------- Call for patent disclosure: - None. ------------------------- Review of Meeting Minutes: Arpad asked for any comments or corrections to the minutes of the December 12th meeting. Michael moved to approve the minutes. Dian seconded the motion. There were no objections. -------------- New Discussion: AMI Test Data proposal: Michael reviewed draft17, which he had sent to the ATM list prior to the meeting. He noted the changes it contained: - Per the discussion at the previous meeting, the format of the file referred to by the AMI_input_parameters_file subparameter now contains two sections. The "Simulator_parameters" section contains values related to the AMI function calls' formal parameters (e.g., Sample_interval, Symbol_time, Number_of_rows, and Agressors for AMI_Init()). The "Model_parameters" section specifies the values of the AMI parameters to be passed to the model. It contains the exact parameters string the simulator should pass to the model in AMI_parameters_in. - Several typos and a misplaced [End Algorithmic Model] were corrected in the Examples section. - The description of the format of the file referred to by the AMI_output_parameters_file subparameter was clarified. It now states that the first block of parameter data (block index 1) for a Time_domain configuration contains the parameters returned by AMI_Init(). While reviewing draft17 with the group, Michael noticed a typo in the description of the contents of the file referred to by AMI_output_parameters_file. It showed the file's contents as containing "Usage In or InOut" parameters, and he corrected it to "Usage Out or InOut" in all instances. Ambrish asked for clarification on who or what would generate the file referred to by AMI_output_parameters_file. Michael said the model maker is responsible for creating the file and supplying it to the user as part of the AMI model distribution. The model maker could potentially assemble it manually. However, Michael said he hoped that AMI model creation tools would eventually provide model makers with an option to automatically synthesize the expected output parameters file. Similarly, he said he hoped that EDA tools would have an incentive to support [AMI Test Configuration] and provide users with an easy way to ask for the automated testing and comparison to expected results. Michael reviewed the presentation on his formulation of a full syntactically complete example, which he had emailed to the ATM list along with draft17 (see the ATM meeting minutes from December 12, 2023, for initial discussions). Michael asked whether the text files in his example distribution were sufficient, or whether we needed to update and recompile the .dll and the test simulator from the original 2009 example upon which his example was based. He also asked whether the Tx example was sufficient, or whether an Rx example would be of interest to anyone. No one replied, so these questions remain open. Ambrish moved to ask Michael to submit draft17, with the corrections noted in today's meeting, to the Open Forum to become an official BIRD. Arpad seconded. There were no objections. Michael suggested that once we have a BIRD number, we could post the full syntax example to the ATM page of the IBIS site and reference the BIRD. Arpad thanked everyone for their hard work in 2023 and wished everyone Happy Holidays. - Ambrish: Motion to adjourn until 2024. - Curtis: Second. - Arpad: Thank you all for joining. New ARs: Michael: Submit the AMI Test Data proposal to the Open Forum for introduction as an official BIRD. ------------- Next meeting: 9 January 2024 12:00pm PT ------------- IBIS Interconnect SPICE Wish List: 1) Simulator directives