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- MINUTES OF VHDL ANALOG SUB-PAR GROUP IN SAN
- FRANCISCO CA. 6/21/91
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- Document Number VIFANL-001
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- July 19, 1991
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- Mark Brown
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- IBM
- Hwy. 52 and 37th. St. NW.
- Dept29M/Bldg.040-2
- Rochester, MN 55901
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- CONTENTS
- ________
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- Overview 1
- General Discussions 1
- Selection of chair and vice-chair(s) 1
- Development process 1
- Scope of work 3
- Work items for the next meeting 3
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- APPENDIX A. ATTENDEES 5
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- Contents ii
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- OVERVIEW
- ________
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- The meeting was held at the San Francisco Marriott in San Francisco CA. the
- afternoon of 6/21/91. A list of the members in attendance is attached to
- this document. The primary goal of this meeting was to organize a group under
- the VASG to develop extensions to the 1076 VHDL language that address analog
- electrical design issues.
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- The result of this meeting generated various work items for various members
- of the group.
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- GENERAL DISCUSSIONS
- ___________________
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- The proposed agenda for the meeting was as follows:
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- o Selection of chair and vice-chair(s)
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- o Development process
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- o Scope of work
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- o Work items for the next meeting
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- SELECTION OF CHAIR AND VICE-CHAIR(S)
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- The meeting began by opening the floor for nominations for chair and vice-
- chair. I was nominated and voted in as chair. Kevin Nolan from Analogy was
- nominated and voted in as North American vice-char. It was suggested that
- since Robert Cottrell from LSI in the UK. agreed to be the European contact
- for this effort, that he be elected to the position of European vice-chair. I
- took it as a work item for me to see if Robert would accept this position.
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- DEVELOPMENT PROCESS
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- There was general agreement that the development process that we should use
- to develop the language extensions should be the same one used for the 92
- restandardization work which is as follows:
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- 1
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- +-----------------------+
- | Requirements Submittal|
- +-----------------------+
- |
- V
- +-----------------------+
- | Requirements Analysis |
- +-----------------------+
- | +-------------------------+
- | | |
- V V |
- +-----------------------+ +-------------------------+
- | Language Design | | Language Design Review |
- +-----------------------+ +-------------------------+
- | | A
- | | |
- | +-------------------------+
- | +-------------------------+
- | | |
- V V |
- +-----------------------+ +-------------------------+
- | Prototype | | Prototype Review |
- +-----------------------+ +-------------------------+
- | | A
- | | |
- V +-------------------------+
- +-----------------------+
- | Complete Documentation|
- +-----------------------+
- |
- V
- +-----------------------+
- | Submit for Balloting |
- +-----------------------+
- |
- V
- +-----------------------+
- | Respond to Negative |
- | Ballots |
- +-----------------------+
- |
- V
- +-----------------------+
- | Submit to REVCOM |
- +-----------------------+
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- We then discussed the coordination of this PAR with the SCC 30 group. Our
- conclusion was that the PAR should be "coordinated" not "cosponsored" with
- the SCC 30 group.
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- 2
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- SCOPE OF WORK
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- Al Gilman gave the group a brief report on the status of the MHDL work that
- Intermetrics is doing. This language has an emphasis on high frequency,
- spatial and frequency domain modelling. This was an area that the group gen-
- erally agreed we didn't want to touch (with a 10 meter pole).
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- We then began a discussion of exactly what the scope of our work should be.
- We started out with some base assumptions:
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- 1. Base language is the 92 version of 1076.
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- 2. Goal is to create a DELTA language. (Don't change existing constructs)
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- 3. Concentrate on time domain mixed-mode description and simulation.
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- o Leave frequency domain alone for now.
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- From these assumptions we developed three possibilities for the scope of our
- work:
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- 1. Formalize the foreign simulator interface requirement for the 92 restand-
- ardization work for continuous time simulation.
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- 2. Develop mixed-mode behavior capability by extending a subset of VHDL to
- continuous time modelling. This effectively partitions a design into dis-
- crete sections of continuous time and discrete time behavior. It will
- simplify the elaboration process for simulation builders.
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- 3. Develop mixed-mode behavior capability by creating one language that can
- contain a mixture of discrete and continuous time behavior constructs.
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- After further discussion, we concluded that our goal should be to:
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- 1. Accomplish either item 2 or 3. Which specific one will be determined
- based on the initial analysis of the requirements.
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- 2. Take item 1 back to the 92 restandardization group as a design require-
- ment (It turns out that it currently is a DR). A vote was taken to affirm
- this requirement. The result was unanimously in favor.
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- WORK ITEMS FOR THE NEXT MEETING
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- In order to start the requirements process off, Kevin Nolan agreed to chair
- the requirements analysis team.
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- The following are the agreed-to work items to be completed by the next
- meeting along with the person(s) responsible:
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- 1. Prepare a white paper dealing with scope item #1, describing what should
- be included in a continuous time <=> discrete time interface. This paper
- will be presented to the language design team of the 92 restandardization
- group by 7/22/91. (Bill Hanna and Mark Brown)
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- 3
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- 2. Complete and submit sub-PAR. (Mark Brown with John Hines and Stan
- Krolikoski, review by Al Lowenstein)
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- 3. Gather current requirements and put out call for more requirements and
- participation. (Kevin Nolan, Robert Cottrell and Mark Brown)
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- 4. Create a project plan with schedules. (Mark Brown)
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- 5. Come up with a catchy name and acronym for the group (everyone)
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- 4
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- APPENDIX A. ATTENDEES
- ______________________
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- NAME ADDRESS
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- MARK BROWN
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- IBM
- Hwy. 52 and 37th. St. NW.
- Dept.29M / Bldg.040-2
- Rochester, MN. 55901
- Tele: (507)-253-4001
- Fax: (507)-253-1979
- Email: brownm@ibm.com
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- KEVIN NOLAN
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- Analogy Inc.
- Email: uunet!analogy!kevin
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- AL LOWENSTEIN
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- PCA
- Email: a.lowenstein@ieee.org
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- BILL HANNA
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- McDonnel Douglas
- Email: hanna%vaxecl@mdcgwy.mdc.com
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- ALFRED GILMAN
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- Intermetrics Inc.
- 4733 Bethesda Ave.
- Bethesda, MD. 20814
- Tele: (301)-657-3775
- Email: gilman@i2wash.com
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- ROBERT HILLMAN
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- Rome Lab
- USAF
- Email: hillmanr@rl.af.mil
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- JEAN MERMET
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- IMT
- Technopole de Chateau - Gombert
- 13451 Marseille Cedex 13 - France
- Tele: 33-91054402
- Fax: 33-91054343
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- Appendix A. Attendees 5
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- MIKE DUKES
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- WL/ELED
- Wright-Patterson AFB
- OH. 45433-6543
- Tele: (513)-255-8626
- Email: dukes@etd2.el.wpafb.af.mil
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- Appendix A. Attendees 6
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