Seagate ST32112A Identify Drive command, Command name, ATA-standard power-management commands

24	U4 Family Product Manual, Rev. D
Command name		Command code (in hex)
Write Sectors		30H, 31H
ATA-standard power-management commands
Check Power Mode		98H or E5H
Idle		97H or E3H
Idle Immediate		95H or E1H
Sleep		99H or E6H
Standby		96H or E2H
Standby Immediate		94H or E0H
ATA-standard security commands
Security Set Password		F1H
Security Unlock		F2H
Security Erase Prepare		F3H
Security Erase Unit		F4H
Security Freeze Lock		F5H
Security Disable Password		F6H

3.2.2 Identify Drive command

The Identify Drive command (command code ECH) 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.