U Series 9 Product Manual, Rev. C
27
4.1.1
Supported ATA commands
The following table lists ATA-standard commands that the drive supports. For
a detailed description of the ATA commands, refer to the Draft ATA-6 Standard.
See “S.M.A.R.T. commands” on page 35 for details and subcommands used
in the S.M.A.R.T. implementation.
Command name
Command code (in hex)
ATA-standard commands
Download Microcode
92
H
Execute Device Diagnostics
90
H
Flush Cache
E7
H
Flush Cache Extended
EA
H
Identify Device
EC
H
Initialize Device Parameters
91
H
Read Buffer
E4
H
Read DMA
C8
H,
C9
H
Read DMA Extended
25
H
Read Multiple
C4
H
Read Multiple Extended
29
H
Read Native Max Address
F8
H
Read Native Max Address Extended
27
H
Read Sectors
20
H,
21
H
Read Sectors Extended
24
H
Read Verify Sectors
40
H,
41
H
Read Verify Sectors Extended
42
H
Seek
70
H
Set Features
EF
H
Set Max
F9
H
Note: Individual Set Max commands
are identified by the value placed in the
Set Max Features register as defined to
the right.
Address:
Password:
Lock:
Unlock:
Freeze Lock:
00
H
01
H
02
H
03
H
04
H
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