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Toshiba Corporation Digital Media Network Company
Page 132 of 157
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10.8.45 Device Configuration (B1h)
This command has a number of separate functions which can be selected via the Feature Register when the
command is issued. The subcommands and their respective codes are listed below.
Subcommand Feature Register
DEVICE CONFIGURATION RESTORE C0h
DEVICE CONFIGURATION FREEZE LOCK C1h
DEVICE CONFIGURATION IDENTIFY C2h
DEVICE CONFIGURATION SET C3h
10.8.45.1 Device Configuration Restore
COMMAND CODE
1 0 1 1 0 0 0 1
REGISTER
REGISTER SETTING NORMAL COMPLETION
DR DRIVE No. no change
CY na no change
HD na no change
SN na no change
SC na no change
FT C0h no change
LBA na no change
The DEVICE CONFIGURATION RESTORE command disables any setting previously made by a DEVICE
CONFIGURATION SET command and returns the content of the IDENTIFY DEVICE or IDENTIFY PACKET
DEVICE command response to the original settings as indicated by the data returned from the execution of a
DEVICE CONFIGURATION IDENTIFY command.
10.8.45.2 Device Configuration Freeze Lock
COMMAND CODE
1 0 1 1 0 0 0 1
REGISTER
REGISTER SETTING NORMAL COMPLETION
DR DRIVE No. no change
CY na no change
HD na no change
SN na no change
SC na no change
FT C1h no change
LBA na no change
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 hardware or software reset.