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5.3.1
Identify Device command
The Identify Device command (command code EC
up. The data is organized as a single 512-byte block of data, whose contents are shown in
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
The following commands contain drive-specific features that may not be included in the Serial ATA specification..
Table 15
Identify Device command
Word
0
Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
1
Obsolete
2
ATA-reserved
3
Obsolete
4
Retired
5
Retired
6
Obsolete
7–9
Retired
10–19
Serial number: (20 ASCII characters, 0000
20-21
Retired
22
Obsolete
23–26
Firmware revision (8 ASCII character string, padded with blanks to end of string)
27–46
Drive model number: (40 ASCII characters, padded with blanks to end of string)
47
(Bits 7–0) Maximum sectors per interrupt on Read multiple and Write multiple (16)
48
Trusted computing feature set supported bit 0 (SED only)
49
Standard Standby timer, IORDY supported and may be disabled
50
Capabilities
51-52
Obsolete
53-56
Words 64–70 and 88 are valid
57–58
Obsolete
Seagate Exos X18 SATA Product Manual, Rev. D
) transfers information about the drive to the host following power
H
7for default parameter settings.
Description
= none)
H
Serial ATA (SATA) interface
Table 14
on
page
Value
0C5A
H
16,383
C837
H
16
0000
H
0000
H
003F
H
0000
H
ASCII
0000
H
0000
H
x.xx
ST18000NM000J
ST18000NM001J
ST16000NM000J
ST16000NM001J
ST14000NM000J
ST14000NM001J
ST12000NM000J
ST12000NM001J
ST10000NM018G
ST10000NM020G
8010
(512e) / 8002
(4KN)
H
H
4000
H
2F00
H
4000
H
xxxx
H
xxxx
H
xxxx
H
32. All
35
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