Time: Tuesday, August 8, 2017 at Noon US Pacific Time
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WebEx:
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Meeting Number: 735 161 627
Meeting Password: IBIS
Audio:
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Agenda
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1) Opens
2) Roll call
3) Review of ARs:
Mike L.: Post BIRD 191.1 draft 2 to the ATM archives
- done
Ambrish: Draft a proposed sentence to add to the [External Model] section
as part of BIRD191.1 and send it to Bob R.
- done
Bob R.: Create BIRD 191.1 draft 3 with Ambrish's sentence and submit it
to the Open Forum as BIRD191.1
- done
Walter and Arpad: Modify the current BIRD158.6 draft to make it compatible
with BIRD189
- done
Mike L.: Post Walter's "BIRD166 - BIRD190 Summary" to the ATM archives
- done
Any other AR-s?
4) Call for any IBIS related patent disclosures
5) Approval of minutes
6) 166.4 Resolving problems with Redriver Init Flow (Walter)
- discussion
7) BIRD158.6 AMI Touchstone Analog Buffer Models (Katz et al)
- discussion
8) Buffer impedance / C_comp improvements (Randy)
- discussion
9) Single ended applications of algorithmic modeling (All)
- do we need to make any changes in the spec?
- we need Fangyi's presence to discuss his concerns
- discussion
a) single ended filter needs different algorithms
EQ effecting Vref
b) rise/fall may be asymmetric
gets worse at higher data rate
c) loss of information when using difference signals only
10) 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
Tabled topics:
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11) BIRD190 (Ambrish)
- discussion
12) BIRD161.2 Supporting Incomplete and Buffer-only
[Component] Descriptions (Mike M.)
- introduction of new draft
- discussion
13) 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)
14) How to handle missing min/max data? (Arpad)
- what should be the governing rule for synchronizing
typ/min/max data?
Pending BIRDs, expected to be rejected:
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125.1 Make IBIS-ISS Available for IBIS Package Modeling
145.3 Cascading IBIS I/O buffers with [External Circuit]s using the [Model
Call] keyword
163 Instantiating and Connecting [External Circuit] Package Models with
[Circuit Call]
164 Allowing Package Models to be defined in [External Circuit]
Pending BIRDs, expected to be accepted (currently in discussion):
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158.5 AMI Touchstonefile (R) Analog Buffer Models
181.1 I/V Table Clarifications
189.4 Interconnect Modeling Using IBIS-ISS and Touchstone
TBD New proposal for Redriver Flow (may replace BIRD166)
TBD C_comp modeling with IBIS-ISS
Pending BIRDs awaiting discussion:
==================================
161.2 Supporting Incomplete and Buffer-only [Component] Descriptions
165 Parameter Passing Improvements for [External Circuit]s
190 Clarification for Redriver Flow
Thanks,
Arpad
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