Minutes from the August 19, 2016 IBIS Editorial Task group meeting are
attached. Document presented in the meeting have been posted:
Title <http://ibis.org/editorial_wip/index-bytitle.htm>
Formats
Authors <http://ibis.org/editorial_wip/index-byauthor.htm>
Organization <http://ibis.org/editorial_wip/index-bycompany.htm>
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I/V Table Clarifications BIRD draft 2
.docx <http://ibis.org/editorial_wip/BIRD_IV_Table_Clarifications_2.docx>
Mike LaBonte
Signal Integrity Software (SiSoft)
Aug 19 2016
IBIS 6.2 BIRD Candidates rev 4
.docx <http://ibis.org/editorial_wip/IBIS6.2_BIRD_candidates_4.docx>
Mike LaBonte
Signal Integrity Software (SiSoft)
Aug 19 2016
Mike
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IBIS EDITORIAL TASK GROUP
http://www.ibis.org/editorial_wip/ ;
Mailing list: ibis-editorial@xxxxxxxxxxxxx
Archives at //www.freelists.org/archive/ibis-editorial/ ;
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Attendees from August 05 Meeting (* means attended at least using audio)
ANSYS Curtis Clark
Cadence Design Systems Bradley Brim
Cisco David Siadat
Intel Corp. Michael Mirmak
Keysight Technologies Radek Biernacki
Mentor Graphics Arpad Muranyi*
Micron Technology Justin Butterfield, Randy Wolff*
SAE ITC Maureen Lemankiewicz, Logen Johnson
Signal Integrity Software Walter Katz*, Mike LaBonte*
Teraspeed Labs Bob Ross*
University of Aveiro in Portugal Wael Dghais
Mike LaBonte convened the meeting. No patents were declared.
Mike noted that minutes from the July 29 meeting were not yet available for
review.
Minutes from the Aug 05 meeting were reviewed. Walter motioned to approve, Bob
seconded the motion. The minutes were approved with no objections.
Review of ARs:
Mike was to write an I/V table Reference Terminal Clarifications BIRD draft.
This was done.
Walter said Bob and Radek were to agree on a buffer supply reference pin
approach.
Bob said they had not yet done that. Mike noted that it may have been an ATM
meeting AR.
Opens: Bob said he would have to miss all IBIS meetings the following week.
Individual BIRDs for IBIS 6.2:
Mike showed the list of IBIS 6.2 BIRD candidates.
BIRD A: Reserved name rule scoping clarifications
Bob said he had been working on the first part of this.
BIRD B: I/V table reference terminal clarifications
Mike said he had worked on this and could show it for discussion.
BIRD C: Ground symbol clarifications
Mike said we had previously decided that this could be dropped, but the line
item had been retained to maintain the sequence of BIRD letters. It was decided
not to change BIRD letters, and Mike deleted BIRD C.
BIRD D: Require one model_name per signal_name in [Pin]
Bob said he had drafted this, and the ATM group had reviewed it once.
BIRD E: Specify POWER/GND [Pin Mapping] by [Pin]
Walter said the issue was whether this could be done ignoring the Interconnect
BIRD. He said we did not need the new [Bus Label] keyword at this time
but that part should be in the Interconnect BIRD. Bob agreed. Mike removed
the [Bus Label] part, retaining "Specify POWER/GND [Pin Mapping] by [Pin]
signal_name reference".
BIRD F: Specify buffer reference terminals for pins
Bob said this probably would be worked on after next week due to his vacation.
BIRD G: Simulation (aka DIA) vs. DUT
Walter said nothing in IBIS talks about how to handle supply voltages during
simulation, except for [Receiver Thresholds]. Bob said Radek had concerns about
this. Walter said there have been several attempts to reach consensus.
Mike tentatively added Bob, Walter, and Radek as BIRD requesters.
BIRD H: "GND" clarifications
Walter said "GND" appeared in many places, and we needed to make sure GND can
be used as a signal name. He suggested it should be part of BIRD A. Mike added
the item to BIRD A and deleted BIRD H.
BIRD I: C_comp and package reference in simulation clarifications
Walter said that currently the C_comp reference terminal should be understood
to be a buffer rail. He said packages should use the same reference terminal,
but currently node 0 was often used. He said the IBIS specification was not
clear
on this. Mike tentatively added Bob, Walter, and Radek as BIRD requesters.
Arpad said deciding this would be easier for C_comp than for packages.
BIRD J: AMI_Version and [IBIS Ver] do not have to match
Bob said IBIS already says this on page 203. Mike showed IBIS 6.1 and found
the sentence. He deleted BIRD J from the list.
BIRD K: Known issues wording
Bob said this was known issue #9 in the IBIS 6.1 known_issues.txt file, which
Mike showed. Both BIRD K and BIRD M changes are reflected in one paragraph
change.
We decided to keep the BIRD line items in the list even though these were pure
editorial changes and no actual BIRDs would be expected.
BIRD L: Document "allowed arguments" of [Resistance Matrix]
Bob said the values of the [Define Package Model] matrices are incorrectly
referred
to in the IBIS specification as reserved parameters. Mike noted that this
called
for a terminology change only. Bob said he had drafted a BIRD. He said Michael
Mirmak had brought this up months ago. Mike added Michael Mirmak as a requester.
BIRD M: "Component attached to" fix
(Recorded as a known issue, see K)
BIRD 180: Require Unique Pin Names in [Pin]
Mike noted that this was a submitted BIRD. Bob said this might be deferred until
7.0, noting that the parser already rejects repeated pins. Arpad said this
should
wait until the Interconnect BIRD. Mike agreed.
Mike showed BIRD B, "I/V Table Clarifications".
Mike said he had changed the sentence defining positive current direction to a
new sentence that addressed both comments from the prior review. Bob said he
approved of the change, noting that there still might be an issue for [Series
Pin]s. Mike showed the [Series Current] keyword in IBIS 6.1 and found that it
clearly noted that positive currents flow into Pin 1.
AR: Mike submit "I/V Table Clarifications" BIRD
Arpad moved to adjourn. Walter seconded the motion. The meeting adjourned.
