XL500S
ATA Command Set
2679-701211-A06
RELEASED 10/21/10 (WD CONFIDENTIAL)
27
4.0
ATA C
OMMAND
S
ET
4.1
Host Interface Commands
4.1.1
ATA-8 Commands
Table 4-1 lists the hexadecimal codes specific to each ATA-8 command supported by these
hard drives. Refer to the D1699 ATA8-ACS specification for full details on each command.
Table 4-1. ATA-8 Command Opcodes
COMMAND
HEX OPCODE
CHECK POWER MODE
E5
DEVICE CONFIGURATION OVERLAY
B1
DOWNLOAD MICROCODE
92
EXECUTE DEVICE DIAGNOSTIC
90
FLUSH CACHE
E7
FLUSH CACHE EXT
EA
IDENTIFY DEVICE
EC
IDLE
E3
IDLE IMMEDIATE
E1
NOP
00
READ BUFFER
E4
READ DMA
C8
READ DMA EXT
25
READ FPDMA QUEUED
60
READ LOG EXT
2F
READ LOG DMA EXT
47
READ MULTIPLE
C4
READ MULTIPLE EXT
29
READ NATIVE MAX ADDRESS
F8
READ NATIVE MAX ADDRESS EXT
27
READ SECTOR(S)
20
READ SECTORS(S) EXT
24
READ VERIFY SECTOR(S) EXT
42
READ VERIFY SECTORS(S)
40
S.M.A.R.T.
B0
SECURITY DISABLE PASSWORD
F6
SECURITY ERASE PREPARE
F3
SECURITY ERASE UNIT
F4
SECURITY FREEZE LOCK
F5
SECURITY SET PASSWORD
F1
SECURITY UNLOCK
F2
SET FEATURES
EF
SET MAX
F9
SET MAX ADDRESS EXT
37
SET MULTIPLE
C6
SLEEP
E6
STANDBY
E2