Minutes, IBIS Quality Task Group

26 June 2018

11:00-12:00 EST (08:00-09:00 PST)

ROLL CALL

eASIC:                              David Banas
Ericsson:                           Anders Ekholm
Intel:                              Michael Mirmak
                                    Eugene Lim
IO Methodology:                   * Lance Wang
Mentor, a Siemens Business          Arpad Muranyi
Signal Integrity Software:        * Mike LaBonte
Teraspeed Labs:                   * Bob Ross
Visteon:                            Preetesh Rathod

Everyone in attendance marked by *

NOTE: "AR" = Action Required.

-----------------------MINUTES ---------------------------
Mike LaBonte conducted the meeting.

Call for IBIS related patent disclosures:

- None

Call for opens:

- None

Review of previous meeting minutes:

- Bob Ross moved to approve the June 19 minutes.
  Lance Wang seconded. Without objection the minutes were approved.

ARs:

- Mike LaBonte to complete BIRD appendix for parser contract.
  -  Nothing new.

New IBISCHK bugs:
- Bob: I sent bug194 for upload. It will be introduced June 8.

IBISCHK7 parser development:
- Bob Ross showed a spreadsheet.
- Bob: This shows items that should be in data structures.
  - Some of the data are optional.
  - A power rail terminal is only accessible through the *_ref terminals.
  - With [Pin Mapping] there is more information.
- Mike: What are the numbers in the spreadsheet?
- Bob: Those are footnote numbers.
- Mike: D4-6 are empty.
- Bob filled in D4 with "rail_pin_names".
- Bob: If buffer terminal reference and no [Pin Mapping], then
  default connections will be used.
  - This table shows the pecking order from left to right.
- Mike: IBISCHK does not have this kind of data structure.
- Bob: We now need this for checking.
- Bob described a number of rules.
- Mike: Is the I/O terminal more straightforward?
- Bob: Yes. There are fewer options for I/O.
- Mike: This needs to be more self-explanatory to be in the parser doc.
- Bob: Another approach is to always determine a signal name.
  - There could be lists of I/O terminals associated pulldown/pullup.

- Bob showed his Oct 2017 EPEPS summit presentation.
- Bob: This was shown to the interconnect task group too.
  - BIRD182 dropped the requirement to have every pi in [Pin Mapping].
- Mike: can [Bus Label] exist without [Pin Mapping]?
- Bob: Yes. We require a signal name, and this creates a bus-label for a
  signal_name.
  - [Die Supply Pads] has signal name and optional bus_label.
  - If bus_label not defined anywhere it is the signal_name.

- Bob Ross moved to adjourn. Mike LaBonte seconded.
  Without objection the meeting ended.

Meeting ended: 12:05 ET

Next meeting July 3, 2018