Toshiba 4006GAH User Manual
Toshiba Corporation Digital Media Network Company
Page 101 of 157
© 2005, Copyright TOSHIBA Corporation All Rights Reserved
10.8.39 SECURITY ERASE UNIT (F4h)
COMMAND CODE
1 1 1 1 0 1 0 0
REGISTER
REGISTER SETTING
NORMAL COMPLETION
DR
DRIVE No.
no change
CY
no
change
HD
no
change
SN
no
change
SC
no
change
FT
no
change
This command must be issued immediately after the SECURITY ERASE PREPARE command.
This command requests to transfer a sector of data from the host including the data specified in the following
table. If the password does not match, the drive rejects the command with an Aborted command error.
This command requests to transfer a sector of data from the host including the data specified in the following
table. If the password does not match, the drive rejects the command with an Aborted command error.
Security Erase Unit Information
Word Content
0 Control
word
Bit
15-1
Reserved
Bit 0
Identifier 0=compare user password
1=compare master password
1=compare master password
1-16
Password (32 bytes)
17-255 Reserved
The SECURITY ERASE UNIT command erases all user data. The SECURITY ERASE PREPARE command
must be completed immediately prior to the SECURITY ERASE UNIT command, otherwise, the SECURITY
ERASE UNIT command shall be aborted..
This command disables the drive lock function, however, the master password is still stored internally within
the drive and may be reactivated later when a new user password is set.
10.8.40 SECURITY FREEZE LOCK (F5h)
COMMAND CODE
1 1 1 1 0 1 0 1
REGISTER
REGISTER SETTING
NORMAL COMPLETION
DR
DRIVE No.
no change
CY
no
change
HD
no
change
SN
no
change
SC
no
change
FT
no
change
The SECURITY FREEZE LOCK allows the drive to enter frozen mode. After the completion of this command,
any other commands that update the drive lock functions are rejected. The drive recovers from the frozen
mode by power-on reset or hard reset. If SECURITY FREEZE LOCK is issued when the drive is in frozen
mode, the drive executes the command and remains in frozen mode.
Following commands are rejected when the drive is in SECURITY FREEZE LOCK mode.
any other commands that update the drive lock functions are rejected. The drive recovers from the frozen
mode by power-on reset or hard reset. If SECURITY FREEZE LOCK is issued when the drive is in frozen
mode, the drive executes the command and remains in frozen mode.
Following commands are rejected when the drive is in SECURITY FREEZE LOCK mode.
• SECURITY SET PASSWORD
• SECURITY UNLOCK
• SECURITY DISABLE PASSWORD
• SECURITY ERASE PREPARE
• SECURITY ERASE UNIT
• SECURITY UNLOCK
• SECURITY DISABLE PASSWORD
• SECURITY ERASE PREPARE
• SECURITY ERASE UNIT