Figure 24 Device Configuration Overlay Command (B1H); Figure 25 Device Configuration Overlay Features Register Values - Hitachi HTS541616J9SA00 Specifications

14.2 Device Configuration Overlay (B1h)
Command Block Output Registers
Register
Data
Feature
Sector Count
LBA Low
LBA Mid
LBA High
Device
Command
Error Register
7 6 5 4
CRC UNC 0 IDN
0 0 0 0

Figure 24 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.
Value
C0h DEVICE CONFIGURATION RESTORE
C1h DEVICE CONFIGURATION FREEZE LOCK
C2h DEVICE CONFIGURATION IDENTIFY
C3h DEVICE CONFIGURATION SET
other Reserved

Figure 25 Device Configuration Overlay Features register values

DEVICE CONFIGURATION RESTORE (subcommand
14.2.1
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.
DEVICE CONFIGURATION FREEZE LOCK
14.2.2
(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.
Travelstar 5K160 (SATA) Hard Disk Drive Specification
7 6 5 4 3 2 1 0
- - - - - - - -
1 0 1 0 V V V V
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 0 1 1 0 0 0 1
3 2 1 0
0 ABT T0N AM
N
0 V 0 0
Command Block Input Registers
Register
Data
Error
Sector Count
LBA Low
LBA Mid
LBA High
Device
Status
Status Register
7 6 5
BSY RDY DF DSC DRQ COR IDX ERR
V V 0
Command
74/167
7 6 5 4 3 2 1 0
- - - - - - - -
...See Below...
V V V V V V V V
- - - - - - - -
V V V V V V V V
V V V V V V V V
- - - - - - - -
...See Below...
4 3 2 1
- V - 0
0
V