Ata Command Set; Host Interface Commands; Acs4 Commands; Table 4-1 Acs4 Command Opcodes - Western Digital Blue WD20SPZX Technical Reference Manual

4.0 ATA C
OMMAND
4.1

Host Interface Commands

4.1.1
Table 4-1 lists the hexadecimal codes specific to each ACS4 command supported by
these hard drives. Refer to the T13/2161-D ACS3 specification for full details on each
command.
Table 4-1. ACS4 Command Opcodes

ATA Command Set

S
ET

ACS4 Commands

COMMAND
CHECK POWER MODE
DATA SET MANAGEMENT
DOWNLOAD MICROCODE
EXECUTE DEVICE DIAGNOSTIC
FLUSH CACHE
FLUSH CACHE EXT
IDENTIFY DEVICE
IDLE
IDLE IMMEDIATE
NOP
READ BUFFER
READ DMA
READ DMA EXT
READ FPDMA QUEUED
READ LOG EXT
READ LOG DMA EXT
READ MULTIPLE
READ MULTIPLE EXT
READ NATIVE MAX ADDRESS
READ SECTOR(S)
READ SECTORS(S) EXT
READ VERIFY SECTOR(S) EXT
READ VERIFY SECTORS(S)
S.M.A.R.T.
SECURITY DISABLE PASSWORD
SECURITY ERASE PREPARE
SECURITY ERASE UNIT
SECURITY FREEZE LOCK
SECURITY SET PASSWORD
SECURITY UNLOCK
SET FEATURES
SET MAX
SET MULTIPLE
SLEEP
STANDBY
WESTERN DIGITAL CONFIDENTIAL
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HEX OPCODE
E5
06
92
90
E7
EA
EC
E3
E1
00
E4
C8
25
60
2F
47
C4
29
F8
20
24
42
40
B0
F6
F3
F4
F5
F1
F2
EF
F9
C6
E6
E2