SE fast-40 supported in SPI-3

Gene_Milligan at notes.seagate.com Gene_Milligan at notes.seagate.com
Mon Nov 29 14:42:01 PST 1999


* From the T10 Reflector (t10 at t10.org), posted by:
* Gene_Milligan at notes.seagate.com
*
This is not an objection per se. But I think there was a statement that the SE
Fast -40 numbers were only for the purpose of driving an internal DVD transeiver
package separate from the protocol chip or words to that effect.

Gene

To:       t10 at t10.org
cc:        (bcc: Gene Milligan)
From:     gop at us.ibm.com @ INTERNET
Date:     11/26/99 06:39:20 PM GMT
Subject:  SE fast-40 supported in SPI-3



* From the T10 Reflector (t10 at t10.org), posted by:
* gop at us.ibm.com
*
OK now that I have your attention.
SPI-3 has all the timing values that would be required to support a SE
version of a fast-40 SCSI device. If you don't believe me look in table 31
and figure 49 which contain information only for SE SCSI devices. Of course
this will not work and fortunately table 1 does not allow SE drives to run
faster than fast-20.
Interestingly enough no one pointed this out in there letter ballot
comments and the only reason I noticed it was because of a comment Gene
made that annex G was supposed to have been deleted.
I assume no one has any objection to me removing the fast-40 information
|from table 31 and figure 49 of SPI-3 rev 10!! If they do let them stand up
and be stoned.

Bye for now,
George Penokie

Dept Z9V  114-2 N212
E-Mail:    gop at us.ibm.com
Internal:  553-5208
External: 507-253-5208   FAX: 507-253-2880


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