offset count and IU transfers

Sriram Srinivasan srirams at lsil.com
Fri Aug 18 09:32:47 PDT 2000


* From the T10 Reflector (t10 at t10.org), posted by:
* Sriram Srinivasan <srirams at lsil.com>
*
   SPI-4 (rev0) requires that the offset go to zero between SPI IUs in DT DATA 
OUT phases (see last-but-one para. in 10.8.3.3.2) and nothing is mandated in the 
other direction.  Whereas in data group transfers, the REQs for pad or pCRC 
bytes cannot be sent for the current data group until ACKs have been received 
for the pCRC bytes of the previous data group regardless of the direction of 
data transfer (see 4) in 10.8.3.3.6 and 3rd para. in 10.8.3.3.7).  Why is this 
different between IU transfers and data group transfers?
   
   Thanx,
   Sriram
   

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