Table of Contents
Advertisement
c. Operation Mode
This VPD information reports the IDD's current operation mode. The format of this VPD
information is shown in Fig. 3.4.
Bit
7
Byte
0
Qualifier
1
2
3
4
0
5
0
6
7
The values displayed 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).
Byte 4 and subsequent bytes list all the VPD information page modes currently set in the
IDD.
This operation mode setting is performed by the CHANGE DEFINITION
COMMAND, described in item 3.1.4, and item 3.1.4 shows concerning a detailed
definition of each bit.
3 - 10
6
5
4
X'C0' (Page Code)
X'00'
X'04' (Page Length)
0
0
WDTR
0
0
0
X'xx' (Spindle Motor Start Delay Timing)
X'00' (Reserved)
Figure 3.4
VPD Information: Operation Mode
C141-E039-01EN
3
2
Device Type Code
UNTAIN
SDTR
RSRTY
0
0
1
0
0
RTD
Advertisement
Table of Contents
