Datasheet

2.5” Solid State Disk

Transcend Information Inc.

V1.05

SECURITY ERASE PREPARE (F3h)

This command shall be issued immediately before the Security Erase Unit command to enable erasing and unlocking.

This command prevents accidental loss of data on the drive.

SECURITY ERASE UNIT (F4h)

The host uses this command to transfer 512 bytes of data, as shown in the following table, to the drive. The transferred

data contains a user or master password, which the drive compares with the saved password. If they match, the drive

deletes user data, disables the user password, and cancels the lock. The master password is still saved. It is re-enabled

by issuing the SECURITY SET PASSWORD command to re-set a user password.

SECURITY FREEZE LOCK (F5h)

Causes the drive to enter Frozen mode. Once this command has been executed, the following commands to update a lock

result in the Aborted Command error:

• SECURITY SET PASSWORD

• SECURITY UNLOCK

• SECURITY DISABLE PASSWORD

• SECURITY ERASE PREPARE

• SECURITY ERASE UNIT

The drive exits from Frozen mode upon a power-off or hard reset. If the SECURITY FREEZE LOCK command is issued

when the drive is placed in Frozen mode, the drive executes the command, staying in Frozen mode.

SECURITY SET PASSWORD (F1h)

This command set user password or master password. The host outputs sector data with PIO data-out protocol to indicate

the information defined in the following table.

Security set Password data content

Word Content

0 Control word

Bit 0

Bits 1-7

Bit 8

Identifier

Reserved

Security level

0=set user password

1=set master password

0=High

1=Maximum