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3.1.4
CHANGE DEFINITION (40)
Bit
7
Byte
0
1
2
0
3
0
4
0
5
0
6
0
7
0
8
9
0
This command changes the IDD's SCSI level and the operation mode.
The INIT can know the SCSI level and operation mode that the IDD is currently using by the
INQUIRY command (Standard Inquiry Data and VPD Information - Operation Mode Page:
Page code X 'C0').
If the "Save" bit of CDB byte 2 specifies "1," the IDD saves the SCSI level and operation
mode specified in this command in the Boot-ROM (Flash ROM) when the command is
executed.
If this bit specifies "0," the changes are not saved.
This command specifies a different SCSI level in the "SCSI level" field in SCB byte 3. The
SCSI level is indicated by 1 byte of code as shown in the following table. If a code other than
the following codes is specified, the command is terminated by a CHECK CONDITION status
(ILLEGAL REQUEST [=5] / Invalid field in CDB [=24-00] and the SCSI level and operation
mode are not changed.
Operation Code (HEX)
X'00'
X'01'
X'02'
*1
X'03'
*1 Set at shipping time.
6
5
4
LUN
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Parameter List Length
0
0
0
Not Change
SCSI-1 (Same as CCS)
CCS (Same as SCSI-1)
SCSI-2
C141-E039-01EN
3
2
X'40'
0
0
0
0
SCSI Level
0
0
0
0
0
0
0
0
0
0
SCSI Level
1
0
0
0
0
Save
0
0
0
0
0
0
0
0
Flag
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