Hitachi hard disk 0J11285 500 GB 2.5 " 8 MB 0J11285 Hoja De Datos
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0J11285
Z5K500 OEM Specifications
75
14.2 Device Configuration Overlay (B1h)
Command Block Output Registers
Command Block Input Registers
Register
7 6 5 4 3 2 1 0 Register
7 6 5 4 3 2 1 0
Data
- - - - -
-
-
- Data
- - - - - -
-
-
Feature
1 0 1 0 V V V V Error
...See
Below...
Sector
Count
- - - - -
-
-
- Sector
Count
V V V V V V V V
LBA
Low
- - - - -
-
-
- LBA
Low
- - - - - -
-
-
LBA
Mid
- - - - -
-
-
- LBA
Mid
V V V V V V V V
LBA
High
- - - - -
-
-
- LBA
High
V V V V V V V V
Device
- - - - -
-
-
- Device
- - - - - -
-
-
Command
1 0 1 1 0 0 0 1 Status
...See
Below...
Error Register
Status Register
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
CRC UNC 0
IDN
0
ABT T0N AMN BSY RDY
DF
DSC DRQ COR IDX ERR
0 0 0 0 0 V 0 0
V V 0 - V - 0 V
Table 44 Device Configuration Overlay Command (B1h)
Individual Device Configuration Overlay feature set commands are identified by the value placed in the
Features register. The table below shows these Features register values.
Features register. The table below shows these Features register values.
Value Command
C0h
DEVICE CONFIGURATION RESTORE
C1h
DEVICE CONFIGURATION FREEZE LOCK
C2h
DEVICE CONFIGURATION IDENTIFY
C3h
DEVICE CONFIGURATION SET
other Reserved
Table 45 Device Configuration Overlay Features register values
14.2.1
DEVICE CONFIGURATION RESTORE
(subcommand C0h)
(subcommand C0h)
The DEVICE CONFIGURATION RESTORE command discard any setting previously made by a DEVICE
CONFIGURATION SET command and return the content of the IDENTIFY DEVICE command response
to the original settings as indicated by the data returned from the execution of a DEVICE
CONFIGURATION IDENTIFY command.
CONFIGURATION SET command and return the content of the IDENTIFY DEVICE command response
to the original settings as indicated by the data returned from the execution of a DEVICE
CONFIGURATION IDENTIFY command.
14.2.2
DEVICE CONFIGURATION FREEZE LOCK
(subcommand C1h)
The DEVICE CONFIGURATION FREEZE LOCK command prevents accidental modification of the
Device Configuration Overlay settings. After successful execution of a DEVICE CONFIGURATION
FREEZE LOCK command, all DEVICE CONFIGURATION SET, DEVICE CONFIGURATION FREEZE
LOCK, DEVICE CONFIGURATION IDENTIFY, and DEVICE CONFIGURATION RESTORE commands
are aborted by the device. The DEVICE CONFIGURATION FREEZE LOCK condition shall be cleared by
a power-down. The DEVICE CONFIGURATION FREEZE LOCK condition shall not be cleared by
COMRESET or software reset.
Device Configuration Overlay settings. After successful execution of a DEVICE CONFIGURATION
FREEZE LOCK command, all DEVICE CONFIGURATION SET, DEVICE CONFIGURATION FREEZE
LOCK, DEVICE CONFIGURATION IDENTIFY, and DEVICE CONFIGURATION RESTORE commands
are aborted by the device. The DEVICE CONFIGURATION FREEZE LOCK condition shall be cleared by
a power-down. The DEVICE CONFIGURATION FREEZE LOCK condition shall not be cleared by
COMRESET or software reset.