Device Configuration Overlay (B1H); Device Configuration Restore (Subcommand C0H); Device Configuration Freeze Lock (Subcommand C1H); Table 44 Device Configuration Overlay Command (B1H) - Hitachi Travelstar 2.5 inch SATA HTS722020K9A300 Oem Specification

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

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.
Value
C0h
C1h
C2h
C3h
other

Table 45 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.
7K200 SATA OEM 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 ABT T0N
0 V 0
DEVICE CONFIGURATION RESTORE
DEVICE CONFIGURATION FREEZE LOCK
DEVICE CONFIGURATION IDENTIFY
DEVICE CONFIGURATION SET
Reserved
Command Block Input Registers
Register
Data
Error
Sector Count
LBA Low
LBA Mid
LBA High
Device
Status
0 7 6
AM BSY RDY
N
0 V V
Command
79/173
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...
Status Register
5 4 3 2
DF DSC DRQ COR IDX ERR
0 - V -
1 0
0 V