Hitachi C4K60 Specifications - Page 102

Set Max Lock Command [F9h, Sub 02h], 5.40. Set Max Set Password Command [F9h, Sub 01h]

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7.5.39. Set Max Lock Command [F9h, Sub 02h] Task File Registers Command LBA High LBA Mid LBA Low Device/Head Sector Count Features 7 6 5 4 3 2 1 0 F9h XX XX XX X X X DRV X X X X XX 02h The SET MAX LOCK command sets the device into Set Max Locked state. After this command is completed any other SET MAX commands except SET MAX UNLOCK command and SET MAX FREEZE LOCK command are rejected. The device remains in this state until a power cycle or the acceptance of a SET MAX UNLOCK or SET MAX FREEZE LOCK command. This command shall not be immediately preceded by a READ MAX ADDRESS command. If this command is immediately preceded by a READ MAX ADDRESS command, it is interpreted as a SET MAX ADDRESS command. If the device is not in the Set Max Locked state, the device reports command aborted. 7.5.40. Set Max Set Password Command [F9h, Sub 01h] Task File Registers Command LBA High LBA Mid LBA Low Device/Head Sector Count Features 7 6 5 4 3 2 1 0 F9h XX XX XX X X X DRV X X X X XX 01h The SET MAX SET PASSWORD command requests a transfer of a single sector of data from the host. Table 7.27 defines the content of this sector of information. The password is retained by the device until the next power cycle. When the device accepts this command the device is in Set Max Unlocked state. Table 7.27 Set Max Password Data Format Word 0 1- 16 17 - 255 Content Reserved Password for Set Max Security Extension Reserved K6610170 Rev.2 Dec 22, 2004 - 102 -

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K6610170
Rev.2
Dec 22, 2004
- 102 -
7.5.39. Set Max Lock Command [F9h, Sub 02h]
Task File Registers
7
6
5
4
3
2
1
0
Command
F9h
LBA High
XX
LBA Mid
XX
LBA Low
XX
Device/Head
X
X
X
DRV
X
X
X
X
Sector Count
XX
Features
02h
The SET MAX LOCK command sets the device into Set Max Locked state. After this command is completed
any other SET MAX commands except SET MAX UNLOCK command and SET MAX FREEZE LOCK
command are rejected. The device remains in this state until a power cycle or the acceptance of a SET MAX
UNLOCK or SET MAX FREEZE LOCK command.
This command shall not be immediately preceded by a READ MAX ADDRESS command. If this command is
immediately preceded by a READ MAX ADDRESS command, it is interpreted as a SET MAX ADDRESS
command. If the device is not in the Set Max Locked state, the device reports command aborted.
7.5.40. Set Max Set Password Command [F9h, Sub 01h]
Task File Registers
7
6
5
4
3
2
1
0
Command
F9h
LBA High
XX
LBA Mid
XX
LBA Low
XX
Device/Head
X
X
X
DRV
X
X
X
X
Sector Count
XX
Features
01h
The SET MAX SET PASSWORD command requests a transfer of a single sector of data from the host.
Table 7.27 defines the content of this sector of information. The password is retained by the device until the
next power cycle. When the device accepts this command the device is in Set Max Unlocked state.
Table 7.27 Set Max Password Data Format
Word
Content
0
Reserved
1- 16
Password for Set Max Security Extension
17 - 255
Reserved