TRAIN / TRAIN_DONE

[Craig Stoops]

Formatted message: <a href="http://www.t10.org/cgi-bin/ac.pl?t=r&f=r1008031_f.htm">HTML-formatted message</a>

Hi David,
A TRAIN_DONE pattern consists of a TRAIN_DONE sequence and 58 scrambled
dwords.
The TRAIN_DONE primitive is of type REDUNDANT (not TRIPLE or EXTENDED), thus
6 (not 3) are sent in a TRAIN_DONE primitive sequence.
This is per SAS 2R16, Table 112 and Table 106. So the answer is 6 TRAIN_DONE
+ 58 scrambled dwords.
Craig Stoops
ExpertIO, Inc - "Your Protocol Verification Experts"
www.expertio.com
408-217-1901
-----Original Message-----
From: David Brewer [mailto:dbrewer at stec-inc.com] 
Sent: Tuesday, August 03, 2010 5:12 PM
To: t10 at t10.org
Subject: TRAIN / TRAIN_DONE
A TRAIN or TRAIN_DONE pattern consists of 6 TRAIN or TRAIN_DONE primitives
followed by 58 dwords set to 00000000h and scrambled.
The question is, should the expected pattern be 6 consecutive TRAIN or 6
consecutive TRAIN_DONE primitives followed by 58 scrambled words, or a TRAIN
or TRAIN_DONE primitive sequence (only 3 consecutive dwords) followed by 58
scrambled dwords.
Technically, I believe it to be the latter, but I can see how it could be
interpreted to be the former.
Thanks,
David Brewer
STEC