Fujitsu MAP3147 Scsi Logical Interface Specifications page 79

b) UNTATN (UNIT ATTENTION report mode)
This specifies the response method to commands received from the INIT when the IDD is
holding a UNIT ATTENTION condition:
"1"* (Report):
"0" (No Report): The IDD terminates all commands that are received normally. (A CHECK
c) SDTR (synchronous data transfer request)
Specifies whether or not it is permitted for the TARG to request a synchronous mode data
transfer.
"1" (Permitted) : After the power is switched on, after a RESET condition occurs or when the
"0"* (Prohibited): Even if it is necessary to establish synchronous mode data transfer, no SDTR
d) RSRTY (reselection retry)
This specifies the number of retries in the RESELECTION phase.
"1" *: Unlimited
"0": 10 times
* Set at shipping time
e) PHSCRC (Phase CRC)
This bit specifies where send or receive the CRC bytes in the DT Data IN/OUT transfer.
"1" * (Phase):
"0" (Block):
C141-E167
* Set at shipping time
The IDD reports a CHECK CONDITION status (Standard SCSI specification)
in response to commands other than INQUIRY and REQUEST SENSE.
CONDITION status which causes a UNIT ATTENTION condition is not
reported.)
* Set at shipping time
first command is received following reception of a BUS DEVICE RESET
message, if a SYNCHRONOUS DATA TRANSFER REQUEST (SDTR)
message is not sent by the INIT, the IDD sends the SDTR message and
attempts to establish synchronous mode data transfer.
message is sent from the IDD. However, if a SDTR message is sent from the
INIT, the IDD responds normally.
* Set at shipping time
After the all transfer is terminated or before the phase during data transfer
changes other phase, the CRC bytes are sent or recieved.
The CRC bytes are sent or recieved in each block boundary.
3.1 Control/Sense Commands
17
3 -