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Barracuda ATA II 100 Family Product Manual, Rev. A
3.1.2 Identify Device command
The Identify Device command (command code EC
H
) transfers informa-
tion 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.
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)
