Specifications

2.5” Solid State Disk

Transcend Information Inc.

V1.00

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.

SMART Feature Set

Transcend IDE SSD supports the SMART command set and define some vendor-specific data to report spare/bad block

numbers in each memory management unit. Individual SMART commands are identified by the value placed in the

Feature register. Table shows these Feature register values.

Value Command

D0h SMART READ DATA

D2h SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE

D4h SMART EXECUTE OFF-LINE IMMEDIATE

D8h SMART ENABLE OPERATIONS

D9h SMART DISABLE OPERATIONS

DAh SMART RETURN STATUS