IEEE P1532 Meeting - May 1-2, 2000 - Xilinx

• Attendees
• Minutes

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Attendees

The following individuals attended the meeting:

   Neil Jacobson - Xilinx
   Ken Parker - Agilent
   Dennis Lia - GenRad
   Howard Tang - Lattice
   Dave Bonnett - Asset Intertech
   Ray Dellecker - JTAG
   Brad Ishihara - Altera
   Al Hermann - Altera
   Mark Moyer - Lattice

Minutes

   Meeting: IEEE P1532
   Date:  5 / 1 & 2 / 2000
   Location: Altera -  San Jose
   Purpose: P1532 Draft wrap-up: BSDL extension, Flow and Data Format

Agenda:

1. Quick Review of Re-Ballot Draft and Process
2. Continued Discussion of BSDL Extension, Flow and Data Format
   • Summary of CRC Discusion
   • Conclusions, how do we proceed
   • Review of Flows and Data Formats
     p93-119.pdf

Minutes:

Date: 5-1-00 Monday
Time: 9:00 AM

Discussion: Amend the Minutes of the last meeting:

• Change date of the May meeting to be May 1 and 2 instead of 2 and 3.

Motion: Approve last meeting minutes as amended.
Motion: Alan
Second: Ken
Vote: 8-0-0

Discussion: Review of Re-Ballot Draft and Process

• Denise(IEEE) and Neil are proceeding with the process of re-circulation of the draft.
• Recirculation response is required in 10 days from balloters.
• A difference document is required of some type.
• Change bars are a problem with the number of changes made.

Discussion: Comments on Draft 1.9

• Working group comments received via email from Dennis and Neil.
• Alan presented several comments. The working group concurred.

Motion: Proceed to re-circulation with draft 1.9 as amended by comments from working group email comments and meeting oral comments

Motion: Mark
Second: Brad
Vote: 8-0-0

Action: Find a way with IEEE to get by with no change bars.
Who: Neil

Discussion: CRC Summary of comments to date.

• Neil presents CRC & Checksums summary that was distributed via email to working group.
• Discussion of a customer need/demand to be able to derive the classical checksum from CRC.
• Discussion of means of promoting CRC.
• Discussion of 1532 benefits
  • Multi-vendor programming
  • Algorithm development done once
  • CRC is more reliable

Time: 10:30 AM
Break:

Time: 10:45 AM

Motion: The 1532 data format will support only the CRC method, and not the classical outdated JEDEC 3C data checksum.

Motion: Dennis
Second: Ken
Vote: 7-0-1

Discussion: P1532 printed 2/15/2000 4:42 PM Unapproved Draft 2.1 - Data and Flow: Pages 93 to 105 of 133

• Page 101 - Discussed masking of CRC. Only bits CRC enabled will be included in the CRC calculation. This does not though dictate that CRCout of a device will match the CRCin of the next device. Remove figure 28.
• Review of change bars.

Time: 12:00 PM
Lunch: The working group thanks Altera for its' hospitality for hosting the meeting and providing lunches.

Time: 1:00 PM

Discussion: P1532 printed 2/15/2000 4:42 PM Unapproved Draft 2.1(continued) - Data and Flow: Pages 106 to 119 of 133

• Discussion continued on CRCin and CRCout, Flows, Procedures and Actions.

Motion: Delete Figure 27 and remove CRCI. Use one CRC key word referring to capture operations only.

Motion: Brad
Second: Mark
Vote: 5-1-1

Motion: Define an "action CRC" that is the result of the XOR of the each of the "flow CRCs". Recommend that flow CRCs not be put in optional or recommended flows. Recommend that action CRCs be included in Read and Verify actions.

Motion: Alan
Second: Brad
Vote: 7-1-0

Time: 2:15
Break

Time: 2:30

Discussion: P1532 printed 2/15/2000 4:42 PM Unapproved Draft 2.1(continued) - Data and Flow: Pages 106 to 119 of 133(continued):

• Flows with no data.
• "Transmission CRC" of the Data file at the end of the file.
• Need to add simple verify example flow.
• Flows
• Procedures
• Actions
• Data Files
• Mapping Data onto a Flow
• Merging Flows for Concurrent Programming
• Use of Device features.

Time: 5:00 PM
Break for Day

Time: 6:00 PM to 9:00 PM
Dinner:
The working group would like to thank Altera for dinner.

Date: 5-2-2000
Time: 9:00 AM

Discussion:
Split into 2 Subgroups:

• Subgroup1: Exercised to describe a real simple device. Neil provided a BSDL for xilinx part XC9536. The objective was to use this as a test case for evaluating the adequacy. Followed section 8 Conformance and Documentation Requirements. ( Brad, Howard, Neil, Mark, Dave and Ken )
• Subgroup2: Exercise to describe a software GUI that contains the essential information for generating and running an ISC action. ( Alan, Ray and Den )

Actions:
Issues to address:

1. Should we change the flow structure to allow multiple repeat loop sections?
2. How to reference an attribute value defined in the BSDL in the flow. For example: IDCODE?
3. How to get data from the external data source?

Discussion:

Time: 12:30 PM
Lunch Break

Time: 1:30 PM

• Reviewed example GUI
• Review example BSDL

Created an example data file for the XC9356.
Discussion:

• if ISC_PROGRAM and ISC_READ target the same register the current syntax does not recognize this and thus does not allow optimization of flow steps.

Action:
Vendors to create vendor specific BSDL files and sent to Neil for posting on the reflect.

• xilinx - Neil
• Vantis - Mark
• Altera - Brad

Open issues:

• Add extension for blank user code?
• Add key word to identify data source?
• Change data file to allow multiple init /repeat loops?
• Need to do common reference with in BSDL?
• Create register aliasing or ISC_READ and ISC_PROGRAM target ISC_PDATA?

Time: 3:30 PM
Adjourn meeting

Next Meetings:
June 26-27 Agilent, Loveland CO - 2nd Ballot Resolution
August 17-18 GenRad, Westford MA

Secretary: Dennis Lia

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