Datasheet

Command Specifications
4-14 C141-C008
c. Operation mode
This VPD information reports the IDD's current operation mode. The
format of this VPD information is shown in Table 4.10.
Table 4.10 VPD information: operation mode
Bit
Byte
7 6 5 4 3 2 1 0
0 Qualifier Device Type Code
1 X‘C0’ (Page Code)
2 X‘00’
3 X‘04’ (Page Length)
4 0 0 0 0 UNTATN 0 0 0
5 0 0 0 0 0 0 0 0
6 X‘78’ (Spindle Motor Start Delay Timing)
7 X‘00’ (Reserved)
The values indicated in the "Qualifier" and "Device Type Code" fields in
byte 0 are the same as those in the previously mentioned standard
INQUIRY data. The "Page code" field in byte 1 indicates the page code
(X 'C0') of this VPD information itself. Also, the "Page length" field in
byte 3 indicates the length (byte length) after byte 4. This value has no
relationship to the specification in the "Transfer Byte Length" in the
CDB, but indicates the length of this VPD information and is always X
'04' (Total data length = 8 bytes).
− UNTATN (UNIT ATTENTION Report Mode)
When the IDD is holding the Unit Attention condition, this specifies
methods of response to commands received from the INIT (In FC,
always the value "1")
"1" (Report): Report the "CHECK CONDITION" status (SCSI
standard specifications) for commands other than the
INQUIRY and REQUEST SENSE commands.
"0" (Don't Report): Terminates all received commands normally
(the "CHECK CONDITION" status caused by
the UNIT ATTENTION condition is not
reported.)
− Spindle Motor Start Delay Timing
The Byte6 indicates "Spindle motor Start Delay Time".
If "Delay Start Mode" set by START/MATED pin.
The motor will delay spin-up.
The delay time is calculating by formula.
Delay Time = 120 × 0.1 × modulo (SEL_ID/8)