Attendees:
Mark Hahn, Cadence (Chair)
Jin-sheng Shyr, Toshiba (Co-Chair)
David Defourque, Fujitsu
Tom Dewey, Mentor
Steve Grouts, Sematech
Cynthia Parrish, Exemplar
Greg Schulte, Ambit
Andres Teene, Symbios
Next Meeting:
The next meeting will be a teleconference on Tuesday, 7/7/98,
from 9-11 am PDT.
New action items:
Who When What
---------- ------ --------
1. Mark 7/7 Follow up with Vassilios on legal aspects of
Ambit donation
2. Mark 7/7 Look into face to face meeting coinciding with
ISLPED (International Symposium on Low Power
Electronics and Design)
3. Mark 7/7 Add links to other related standards from the
DC-WG web page
4. Mark 7/7 Gather input from Synopsys, OVI, and VSI on the
relationship between DC-WG and the TAP-in program
5. Jin 7/7 Consolidate presentations on the conceptual
model into a Word document
Open action items:
Who When What
---------- ------ --------
1. Mark 6/22 First draft of taxonomy for clocking
2. Greg 6/22 First draft of taxonomy for exceptions
3. Steve 6/22 First draft of taxonomy for parasitics
boundary conditions
4. Jin 6/22 First draft of taxonomy for timing boundary
conditions
5. Greg 6/22 Write up an extended description of how tags work
6. Jim 6/22 Write up an extended description of how operating
conditions work
7. Mark 7/7 Arrange for a face to face meeting at ICCAD
Completed action items:
Who When What
---------- ------ --------
1. Mark 6/9 Fix broken links on the web site
2. Mark 6/22 Investigate RAIL and get documentation on it (done)
3. Mark 6/22 Write up an extended description of how modes work
Details:
1. Constraint taxonomy
We talked about the format for the constraint taxonomy document.
Steve Grouts suggested using Word Heading styles for the constraint
name and semantics summary. This allows generating a table of contents
which provides just a list of the constraints or one which gives an
overview.
2. Discussion of Synopsys press release on licensing
constraints through the TAP-in program
We discussed this at length. There was general agreement that
the DC-WG charter is broader than the Synopsys constraints, and
that open standards are better than licensed ones. Concerns were
raised about the Synopsys constraints being tool-specific, which
syntax would be standardized (PrimeTime or DesignCompiler), and
how evolution of the standard would be handled.
The plan for resolving this is to gather additional input from
Synopsys and the DC-WG sponsors (OVI and VSI), write up the
alternatives, take a vote, and reflect the direction in the
charter.
3. Constraint taxonomy discussion
- Review first drafts of clock, exceptions,
timing and parasitics boundary conditions
We skipped this because none of the drafts were available yet.
4. Discussion on tags, modes, and operating conditions
The summary of each of these in the meeting minutes was
accurate, and people agreed with the write-up on modes.
Thanks,
Mark
-- Mark Hahn phone: (408) 428-5399 Architect, Deep Submicron Business Unit fax: (408) 428-5959 Cadence Design Systems email: mhahn@cadence.com