Datasheet

2.5” Solid State Disk

Transcend Information Inc.

V1.05

SEEK (7xh)

This command is effectively a NOP command to the device although it does perform a range check.

SET FEATURES (EFh)

This command set parameter to Features register and set drive’s operation. For transfer mode, parameter is set to Sector

Count register. This command is used by the host to establish or select certain features.

Features register Value and settable operating mode

Value Function

02h Enable write cache

03h Set transfer mode based on value in Sector Count register.

55h Disable read look-ahead feature

82h Disable write cache

AAh Enable read look-ahead feature

SET MULTIPLE MODE (C6h)

This command enables the device to perform READ MULTIPLE and WRITE MULTIPLE operations and establishes the

block count for these commands.

SLEEP (E6h)

This command causes the device to set BSY, enter the Sleep mode, clear BSY and generate an interrupt.

SMART Function Set (B0h)

Performs different processing required for predicting device failures, according to the subcommand specified in the

Features register. If the Features register contains an unsupported value, the Aborted Command error is returned. If the

SMART function is disabled, any subcommand other than SMART ENABLE OPERATIONS results in the Aborted

Command error.

SMART Sub Command Set

Value Function

D0h Read Data

D1h Read Attribute Thresholds

D2h Enable/Disable Autosave

D3h Save Attribute Values