Minutes, IBIS Quality Teleconference July 2

Meeting was held Tuesday, July 2, 11 AM EST (8 AM PST).

- Roll Call:
Adam Tambone Adam.Tambone@fairchildsemi.com
*Barry Katz bkatz@sisoft.com
Benjamin P Silva benjamin.p.silva@intel.com
Bob Ross bob_ross@mentor.org
*Eckhard Lenski Eckhard.Lenski@icn.siemens.de
Eric Brock ebrock@sisoft.com
Gregory R Edlund gedlund@us.ibm.com
*Hazem Hegazy hazem_hegazy@mentorg.com
John Figueroa jfigueroa@apple.com
Kevin Fisher kfisher@sisoft.com
*Kim Helliwell kimgh@apple.com
*Lynne Green lgreen@cadence.com
Mike Labonte mlabonte@hhnetwrk.com
Peter LaFlamme plaflamm@amcc.com
Robert Haller rhaller@cereva.com
*Roy Leventhal Roy_Leventhal@3com.com
Sherif Hammad sherif_hammad@mentorg.com
Todd Westerhoff twester@hhnetwk.com
Tom Dagostino tom_dagostino@mentorg.com

Everyone in attendance marked by  *
=20
Minutes:

- Review previous minutes (May 28 and June 18)
Both approved as written.

Three people from two companies have expressed interest in joining this =
committee.

- Opens for new issues:
Barry - discussion of Eckhard's IBIS Summit presentation and how that
could be added to the Quality spec.

- Review open Action Items
	ALL: Review the 10 BIRDs, and their keywords and subparameters

- Discuss adding Summary section at top of IBIS file (tabled from =
previous
meeting).  Tabled.

- Review 10 birds and keywords from these birds applicable to Checklist

BIRD 62.6 (Enhanced Specification of Receiver Thresholds)  - include
the new keywords and descriptions.  Perhaps examples of when they
are used (such as SSTL using DC thresholds) and when they are not
used.  Note these can be used for timing by EDA tools.

BIRD 64.4 (Alternate Package Models) - probably not in first draft.

BIRD 65.2 (C_comp Refinements, now BIRD 76) - address by stating
the C_comp issue is being revisited/refined.  Hegazy's IBIS Summit
presentation showed how C_comp extraction method has large effect
on C_comp value.

BIRD 66 ([Model Spec] Vref Addition) - no new keywords.  Adds
typ/min/max for Vref.  Nothing to be addressed here.

BIRD 67.1 (Increase V-T Table 100 Point Limit) - no new keywords.
Need to document "quality" means having enough points in transition
region.  Not necessarily more points, but more in transition region.

BIRD 68.1 - no new keywords, but definitely a quality issue.  There
are a lot of portability issues related to "over-clocking".  Tradeoff=20
between portability and ability to account for ISI effects properly.

Limitations of s2ibis2 (taking evenly spaced points, taking points
to final run time, subtracting I-V curves with enough resolution)
were noted.  These are related to BIRDs 67.1 and 68.1.

BIRD 70.5 (Golden Waveforms) - not in first draft?  except perhaps
to say it is desirable to do that sort of checking during model
making.  Note that this is not the same as correlating to the
test bench.
Model maker should document source of the data (SPICE or
test bench).

BIRD 71 (Timing Test Loads in [Model Spec] to Support PCI &
PCI-X) - PCI is popular.  Need to document the keywords and
how they are used (different test loads for rising and falling).

BIRD 72.3 (Accommodating PMOS and NMOS//PMOS Series
FET Models) - no new keywords.  Nothing to be addressed here.

BIRD 73.4 (Fall Back Submodel) - Voltage-dependent output
current control, higher drive strength from Vinl to Vinh, weaker
outside that range.  Are we documenting any submodel spec
keywords (no).  Skip in first draft.

Maybe put at end of document: a list of keywords that have
not yet been documented for quality purposes.  Need to
 note that list may not complete.

BIRDs 74 and 75 - not passed, so not planning to address
them in the first draft of the quality document.=20

- Agenda items for next week?

Not all simulator companies deal with all keywords.  Need
to address this in the quality document - what keywords
are the "bare minimum" to claim IBIS support ("Level 0").
Examples include timing and EMI.

Identify limitations in model making and IBIS specification
and feed this back into the IBIS committee.

- Set next meeting time
Tuesday, July 16, 11 AM EST (8 AM PST).
Phone: 408-974-8478 or 800-249-5618
Meeting access: CONFERENCE SERVER 2, Conference ID: 4203

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