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2 identify drive command – Seagate ULTRA ATA ST320423A User Manual

Page 32

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24

U10 Family Product Manual, Rev. A

3.1.2 Identify Drive command

The Identify Drive command (command code EC

H

) transfers information

about the drive to the host following power up. The data is organized as
a single 512-byte block of data, whose contents are shown in the table
on page 25. All reserved bits or words should be set to zero. Parameters
listed with an “x” are drive-specific or vary with the state of the drive. See
Section 1 of this manual for default parameter settings.

The following commands contain drive-specific features that may not be
included in the

Draft ATA-5 Standard.

Write Multiple

C5

H

Write Sectors

30

H,

31

H

ATA-standard power-management commands

Check Power Mode

98

H

or E5

H

Idle

97

H

or E3

H

Idle Immediate

95

H

or E1

H

Sleep

99

H

or E6

H

Standby

96

H

or E2

H

Standby Immediate

94

H

or E0

H

ATA-standard security commands

Security Set Password

F1

H

Security Unlock

F2

H

Security Erase Prepare

F3

H

Security Erase Unit

F4

H

Security Freeze Lock

F5

H

Security Disable Password

F6

H

Command name

Command code (in hex)

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