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20
3.3 ATA interface commands
The following table lists ATA-standard and Seagate-specific drive com-
mands that are supported by the ST9655 family drives. For a detailed
description of these commands, refer to the Seagate ATA Interface
Reference Manual.
Command name
ATA-standard commands
Execute Drive Diagnostics
Format Track
Identify Drive
Initialize Drive Parameters
NOP
Read Buffer
Read DMA (w/retry)
Read DMA (no retry)
Read Long (w/retry)
Read Long (no retry)
Read Multiple
Read Sectors (w/retry)
Read Sectors (no retry)
Read Verify Sectors (w/retry)
Read Verify Sectors (no retry)
Recalibrate
Seek
Set Features
Set Multiple Mode
Write Buffer
Write DMA (w/retry)
ST9655 Family Product Manual, Rev. A
Command
Supported by
code
ST9655 family drives
90
Yes
H
50
Yes
H
EC
Yes
H
91
Yes
H
00
No
H
E4
Yes
H
C8
Yes
H
C9
Yes
H
22
Yes
H
23
Yes
H
C4
Yes
H
20
Yes
H
21
Yes
H
40
Yes
H
41
Yes
H
1 x
Yes
H
7 x
Yes
H
EF
Yes
H
C6
Yes
H
E8
Yes
H
CA
Yes
H
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