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24 U4 Family Product Manual, Rev. D
3.2.2 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
below. 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-4 Standard.
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)