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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.
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.
Transcend Information Inc.
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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
Code
Smart Subcommand
D0h
READ DATA
D1h
READ ATTRIBUTE THRESHOLDS
D2h
ENABLE/DISABLE ATTRIBUTE AUTOSAVE
D3h
SAVE ATTRIBUTE VALUES
D5h
Reserved
D6h
Reserved
D8h
ENABLE OPERATIONS
23
2.5" Solid State Disk
V1.08
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