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Barracuda 5400.1 Product Manual, Rev. G 31
4.1.2 Identify Device command
The Identify Device 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 29. 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
2.0 on page 3 for default parameter settings.
The following commands contain drive-specific features that may not be
included in the Draft ATA-7 Standard.
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)