offset count and IU transfers
Day, Brian
bday at lsil.com
Fri Aug 18 10:40:39 PDT 2000
* From the T10 Reflector (t10 at t10.org), posted by:
* "Day, Brian" <bday at lsil.com>
*
Sriram...
SPI-4 (rev 0) also says in section 14.1 in the last paragraph that the
target shall
not start a new IU until the offset goes to zero except during data stream
IUs.
Brian
> -----Original Message-----
> From: Sriram Srinivasan [SMTP:srirams at lsil.com]
> Sent: Friday, August 18, 2000 10:33 AM
> To: t10 at t10.org
> Subject: offset count and IU transfers
>
> * 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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