Identify Device Command - Seagate Momentus ST9120411AS Product Manual

Command name
Standby Immediate
ATA-standard security commands
Security Set Password
Security Unlock
Security Erase Prepare
Security Erase Unit
Security Freeze Lock
Security Disable Password
4.3.1

Identify Device command

The Identify Device command (command code EC
power up. The data is organized as a single 512-byte block of data, whose contents are shown in the table on
page 27. 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 Serial ATA specifica-
tion.
Word Description
Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
0 • Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
1 Number of logical cylinders
2 ATA-reserved
3 Number of logical heads
4 Retired
5 Retired
6 Number of logical sectors per logical track: 63
7–9 Retired
10–19 Serial number: (20 ASCII characters, 0000
20 Retired
21 Retired
22 Obsolete
23–26 Firmware revision (8 ASCII character string, padded with
blanks to end of string)
Momentus 7200.3 SATA Product Manual, Rev. B
Command code (in hex)
94h or E0h
F1h
F2h
F3h
F4h
F5h
F6h
) transfers information about the drive to the host following
H
Value
0C5A
16,383
0000
16
0000
0000
003F
0000
= none) ASCII
H
0000
0400
0000
x.xx
H
H
H
H
H
H
H
H
H
27