Seagate ST500LX012ST500LX011 ユーザーズマニュアル
S
EAGATE
U
LTRA
M
OBILE
SSHD P
RODUCT
M
ANUAL
, R
EV
. D
24
S
ERIAL
ATA (SATA) I
NTERFACE
6.3.1
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
. 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. Refer to
The following commands contain drive-specific features that may not be included in the Serial ATA specification.
Table 10 Identify Device command
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
Specific configuration
C837
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
8000
H
22
Obsolete
0004
H
23–26
Firmware revision:
(8 ASCII character string, padded with blanks to end of string)
x.xx
27–46
Drive model number:
(40 ASCII characters, padded with blanks to end of string)
ST500LX009
ST500LX010
ST500LX011
ST500LX012
ST500LX013
ST500LX014
ST500LX015
ST500LX016
47
(Bits 7–0)
Maximum sectors per interrupt on Read multiple and Write multiple (16)
8010
H
48
Trusted Computing Feature set options
0000
H
49
Standard Standby timer, IORDY supported and may be disabled
2F00
H
50
Capabilities
4000
H
51
PIO data-transfer cycle timing mode
0200
H
52
Retired
0200
H
53
Words 54–58, 64–70 and 88 are valid
0007
H
54
Number of current logical cylinders
xxxx
H
55
Number of current logical heads
xxxx
H
56
Number of current logical sectors per logical track
xxxx
H
57–58
Current capacity in sectors
xxxx
H
59
Number of sectors transferred during a
Read Multiple or Write Multiple command
xxxx
H