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Transcend Information TS32GSSD25S-S User Manual

Page 29

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2.5” Solid State Disk

Transcend Information Inc.

V2.2

29

READ VERIFY SECTOR(S) (40h/41h)

This command verifies one or more sectors on the drive by transferring data from the flash media to the data buffer in the

drive and verifying that the ECC is correct. This command is identical to the Read Sectors command, except that DRQ is

never set and no data is transferred to the host.

READ VERIFY SECTOR(S) EXT (42h)

48-bit feature set mandatory command. This command verifies one or more sectors on the drive by transferring data from

the flash media to the data buffer in the drive and verifying that the ECC is correct. This command is identical to the Read

Sectors command, except that DRQ is never set and no data is transferred to the host.

RECALIBRATE (10h)

The current drive performs no processing if it receives this command. It is supported for backward compatibility with

previous devices.

SECURITY DISABLE PASSWORD (F6h)

Disables any previously set user password and cancels the lock. The host transfers 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 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 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.

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