IBIS Macromodel Task Group

Meeting date: 10 March 2020

Members (asterisk for those attending):
Achronix Semiconductor:       Hansel Dsilva
ANSYS:                        Dan Dvorscak
                              Curtis Clark
Cadence Design Systems:     * Ambrish Varma
                              Ken Willis
                              Kumar Keshavan
Intel:                      * Michael Mirmak
Keysight Technologies:        Fangyi Rao
                            * Radek Biernacki
                            * Ming Yan
                              Todd Bermensolo
Marvell                       Steve Parker
Mentor, A Siemens Business: * Arpad Muranyi
Micron Technology:          * Randy Wolff
                            * Justin Butterfield
SiSoft (Mathworks):           Walter Katz
                              Mike LaBonte
SPISim:                     * Wei-hsing Huang
Teraspeed Labs:             * Bob Ross

The meeting was led by Arpad Muranyi.  Justin Butterfield took the minutes.


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Opens:

- None.

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Review of ARs:

- Walter to send out the DDR5 DQ Write Protocol presentation.
  - Done.

- Fangyi to send out the latest GetWave2 API BIRD draft.
  - Done.

- Walter to ask Hansel to draft a BIRD to address the AMI statistical 
  sampling point issue.
  - Done.  Arpad reported he has not heard if a BIRD draft is in progress.
  
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Call for patent disclosure:

- None.

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Review of Meeting Minutes:

Arpad asked for any comments or corrections to the minutes of the March 3
meeting.  Bob moved to approve the minutes.  Radek seconded the motion.
There were no objections.


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DDR clock forwarding BIRD draft:
Arpad reported Fangyi has added a diagram to the BIRD draft.


Topic bin list discussion:
Arpad asked if there were any suggestions to clean up the bin list.  Michael 
suggested to send out a reminder in the week to bring up these topics.  Randy 
suggested to send Mike a reminder about BIRD181.2.  Bob is also an author on 
this BIRD, but we need discussion on similar changes to section 9.  Randy asked 
if this would be a separate BIRD.  Bob replied we could have a separate BIRD 
tied to BIRD181.2 or change BIRD181.2, but if we make the change, we should be 
consistent throughout the IBIS specification.

Arpad noted Fangyi's clock forwarding BIRD is the same topic as item #12 in the 
bin list.  He suggested to delete this duplicate topic.  Michael commented the 
component level issue has not yet been addressed.  Arpad stated we did have 
discussion on this, but he wasn't sure if we had settled on this issue.  
Michael agreed it would be okay to delete the clock forwarding item.  Arpad 
moved to remove the clock forwarding topics from item #12.  Michael seconded.  
There were no objections.

Randy noted we had seemed to come to the conclusion that EDA tools would come 
up with their own solutions to handle the rise and fall time asymmetry.  Arpad 
suggested to keep the item, as it could use some further discussion.


- Michael: Motion to adjourn.
- Bob: Second.
- Arpad: Thank you all for joining.

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Next meeting: 17 March 2020 12:00pm PT
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IBIS Interconnect SPICE Wish List:

1) Simulator directives