Seagate ST980813ASG Manual Do Utilizador
Momentus 7200.2 SATA Product Manual, Rev. E
27
4.3.1
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 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.
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.
tion.
Security Erase Unit
F4h
Security Freeze Lock
F5h
Security Disable Password
F6h
Word
Description
Value
0
Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
0C5A
H
1
Number of logical cylinders
16,383
2
ATA-reserved
0000
H
3
Number of logical heads
16
4
Retired
0000
H
5
Retired
0000
H
6
Number of logical sectors per logical track: 63
003F
H
7–9
Retired
0000
H
10–19
Serial number: (20 ASCII characters, 0000
H
= none)
ASCII
20
Retired
0000
H
21
Retired
0400
H
22
Obsolete
0000
H
23–26
Firmware revision (8 ASCII character string, padded with
blanks to end of string)
blanks to end of string)
x.xx
27–46
Drive model number: (40 ASCII characters, padded with
blanks to end of string)
blanks to end of string)
ST9200420ASG
ST9200420AS
ST9160823ASG
ST9160823AS
ST9120823AS
ST9100821AS
ST980813ASG
ST980813AS
47
(Bits 7–0) Maximum sectors per interrupt on Read multiple
and Write multiple (16)
and Write multiple (16)
8010
H
48
Reserved
0000
H
49
Standard Standby timer, IORDY supported and may be dis-
abled
abled
2F00
H
50
ATA-reserved
0000
H
Command name
Command code (in hex)