Datasheet

ATA Command Register
This table with the following paragraphs summarizes the ATA command set.
Support ATA/ATAPI Command
Code
Protocol
General Feature Set
EXECUTE DIAGNOSTICS
90h
Device diagnostic
FLUSH CACHE
E7h
Non-data
IDENTIFY DEVICE
ECh
PIO data-In
INITIALIZE DRIVE PARAMETERS
91h
Non-data
READ DMA
C8h
DMA
READ LOG EXT
2Fh
PIO data-In
READ MULTIPLE
C4h
PIO data-In
READ SECTOR(S)
20h
PIO data-In
READ VERIFY SECTOR(S)
40h or 41h
Non-data
SET FEATURES
EFh
Non-data
SET MULTIPLE MODE
C6h
Non-data
WRITE DMA
CAh
DMA
WRITE MULTIPLE
C5h
PIO data-out
WRITE SECTOR(S)
30h
PIO data-out
NOP
00h
Non-data
READ BUFFER
E4h
PIO data-In
WRITE BUFFER
E8h
PIO data-out
Power Management Feature Set
CHECK POWER MODE
E5h or 98h
Non-data
IDLE
E3h or 97h
Non-data
IDLE IMMEDIATE
E1h or 95h
Non-data
SLEEP
E6h or 99h
Non-data
STANDBY
E2h or 96h
Non-data
STANDBY IMMEDIATE
E0h or 94h
Non-data
Security Mode Feature Set
SECURITY SET PASSWORD
F1h
PIO data-out
SECURITY UNLOCK
F2h
PIO data-out
SECURITY ERASE PREPARE
F3h
Non-data
SECURITY ERASE UNIT
F4h
PIO data-out
SECURITY FREEZE LOCK
F5h
Non-data
SECURITY DISABLE PASSWORD
F6h
PIO data-out
SMART Feature Set
SMART Disable Operations
B0h
Non-data
SMART Enable/Disable Autosave
B0h
Non-data
SMART Enable Operations
B0h
Non-data
SMART Execute Off-Line Immediate
B0h
Non-data
SMART Read Log
B0h
PIO data-In
SMART Read Data
B0h
PIO data-In
SMART Read Threshold
B0h
PIO data-In
SMART Return Status
B0h
Non-data
SMART Save Attribute Values
B0h
Non-data
SMART Write Log
B0h
PIO data-out
Host Protected Area Feature Set
Read Native Max Address
F8h
Non-data