Time: Tuesday, November 17, 2020 at Noon US Pacific Time
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Agenda
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1) Opens
- Holiday schedule:
November 24 - cancel ?
December 1
December 8
December 15
December 22 - cancel ?
December 29 - cancel ?
January 5
January 12
2) Roll call
3) Review of ARs:
Any other AR-s?
4) Call for any IBIS related patent disclosures
5) Approval of minutes
6) Redriver flow issues
The main question seems to be whether we should try to find a way to
support all possible model type combinations (Init, GetWave, Dual),
or enumerate the (problem) combinations, and state that they are not
supported. It would be nice to make a list of these combinations
for our discussion/decision process.
a) Intel's Redriver Flow presentation (Intel)
b) 166.4 Resolving problems with Redriver Init Flow (Walter)
c) BIRD190 (Ambrish)
d) Fangyi's Redriver flow BIRD draft (Fangyi)
- add equations
- consider rewriting the AMI "front end" in the spec (flows)
(when this proposal is added to the spec)
7) GDDR6x signaling (Randy)
- questions/comments?
8) Supporting PI modeling/simulation in IBIS (Zhiping)
- questions/comments?
9) Motion to adjourn?
Topic bin list:
===============
- Parameter directionality summary (Mike M.)
- Removing the single-ended input threshold requirements for
differential buffers (Mike M.?)
- Removing the single-ended characterization load requirements for
differential buffers (Mike M.?)
- Fix all the referencing problems in the current specification
(after Randy's C_comp proposal and BIRD189 are done)
(BIRD181.1 Bob, Mike L.)
- Guidance for power-aware vs. AMI models - do we have rules for
how a power-aware (and therefore potentially non-LTI) buffer
analog data set should be used with IBIS-AMI algorithmic data?
(important topic - 2018 ASIA IBIS Summit presentations)
(the spec. may not need to be changed for this)
- Digital signing of DLL/SO files. Should it be mentioned in the
spec, or required?
Tabled ARs:
===========
Tabled topics:
==============
10) Support for RDL in IBIS (Walter)
11) Jitter HF/LF components and Jitter Amplification (Mike M.)
12) Other DDR5 related topics
- rise fall asymmetry
13) New BIRDs from Editorial Task Group? (Bob/Radek)
a) Specify buffer reference terminals for pins ([Pin Reference])
b) Simulation (aka DIA) vs. DUT (depends on #a)
c) C_comp and package reference in simulation clarifications
(depends on #a)
d) Make changes to the [Receiver Threshold], once a) and b) are
resolved
14) How to handle missing min/max data? (Arpad)
- what should be the governing rule for synchronizing
typ/min/max data?
Pending BIRDs awaiting discussion:
==================================
166.4 Resolving problems with Redriver Init Flow
190 Clarification for Redriver Flow
TBD New proposal for Redriver Flow (may replace BIRD166)
Thanks,
Arpad
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