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3.2 ATA Interface commands
3.2.1 Supported ATA commands
The following table lists ATA-standard and Seagate-specific drive com-
mands that the ST9816AG supports. For a detailed description of the
ATA commands, refer to the
Draft Proposed ATA-2 Standard.
Command name
Command
code
Supported by
ST9816AG
ATA-standard commands
Execute Drive Diagnostics 90
H
Yes
Format Track 50
H
Yes
Identify Drive EC
H
Yes
Initialize Drive Parameters 91
H
Yes
NOP 00
H
No
Read Buffer E4
H
Yes
Read DMA (w/retry) C8
H
Yes
Read DMA (no retry) C9
H
Yes
Read Long (w/retry) 22
H
Yes
Read Long (no retry) 23
H
Yes
Read Multiple C4
H
Yes
Read Sectors (w/retry) 20
H
Yes
Read Sectors (no retry) 21
H
Yes
Read Verify Sectors (w/retry) 40
H
Yes
Read Verify Sectors (no retry) 41
H
Yes
Recalibrate 1
x
H
Yes
Seek 7
x
H
Yes
Set Features EF
H
Yes
Set Multiple Mode C6
H
Yes
Write Buffer E8
H
Yes
Marathon 810 (ST9816AG) Product Manual, August 1995 23