Draft Agenda for SPI-2/EPI Working Group Meeting July 15t...

RMoore at corp.adaptec.com RMoore at corp.adaptec.com
Thu Jun 27 05:48:00 PDT 1996


* From the SCSI Reflector, posted by:
* RMoore at corp.adaptec.com
*
Form: Reply
Header: Adaptec
Text: (27 lines follow)
John,

On your agenda,

>  5.1 Test Circuit Considerations for Voltage Mode
>      Drivers () [Moore]

I don't expect I'll come up with an alternate test for voltage-mode drivers. 
I discussed this with Wally and he doesn't believe this is an issue, since 
the voltage mode drivers shift the power dissipation off-chip. However, 
Wally believes there are some problems with the common-mode test when 
applied to voltage-mode problems. Since he understands the issue better than 
I, I'd like to hand this agenda item over to him.

>  5.4 Fast-80 Deskew Delay () [Moore]

Tak and I puzzled over this for a while. It seems deskew delay is there (in 
SPI-1) for historical reasons but maybe it doesn't need to be dragged into 
Fast-40/Fast-80 at all. My concern was the wording of the requirements for 
ATN-to-ACK timing in terms of deskew, as defined in SCSI-2 and SPI, but 
again that wording appears to exist more for historical than technical 
reasons. Perhaps we should leave the item open for discussion but my 
position is changed in that I no longer think we need to specify this number 
(at least, for ATN it should be made irrelevant).

	Richard Moore
	Adaptec Irvine Technology Center
Original text: (49 lines follow)
>From owner-scsi at Symbios.COM, on 6/26/96 2:45 PM:
To: scsi at Symbios.COM ("'SCSI Reflector'")

* From the SCSI Reflector, posted by:
* "Lohmeyer, John" <JLOHMEYE at COSSYMWEST.CO.SYMBIOS.COM>
*

              Draft Agenda SPI-2 Working Group
            July 15, 1996 -- Colorado Springs, CO

1. Opening Remarks

2. Approval of Agenda

3. Attendance and Membership

4. Documentation Strategy [Lamers/Ham]

5. LVD Topics
  5.1 Test Circuit Considerations for Voltage Mode
      Drivers () [Moore]
  5.2 Standing Waves [Bridgewater]
  5.3 Should Fast-80 be included in SPI-2?  SUPR? ()
      [Milligan]
  5.4 Fast-80 Deskew Delay () [Moore]
  5.5 Hot Plugging () [Bridgewater]
  5.6 Universal Backplane () [Ham]
  5.7 SPI-2 Document Review (X3T10/1142D) [Ham]

6. High-Voltage Differential Fast-40 (96-190) [Gingerich]

7. EPI Topics
  7.1 Arbitration Fairness (96-172) [Lohmeyer]
  7.2 Document Review [Ham]

8. Summary of Meeting Results [Ham]

9. Meeting Schedule

10. Adjournment

 --
John Lohmeyer                 E-Mail: john.lohmeyer at symbios.com
Symbios Logic Inc.             Voice: 719-533-7560
4420 ArrowsWest Dr.              Fax: 719-533-7036
Colo Spgs, CO 80907-3444    SCSI BBS: 719-533-7950 300--14400 baud



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