Seagate ST9120315AS 사용자 설명서
M
OMENTUS
5400.6 SATA P
RODUCT
M
ANUAL
, R
EV
. G
28
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.
or words should be set to zero. Parameters listed with an “x” are drive-specific or vary with the state of the drive.
The following commands contain drive-specific features that may not be included in the Serial ATA specification.
W
ORD
D
ESCRIPTION
V
ALUE
0
Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
• 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)
ST9500325AS
ST9500325ASG
ST9320325AS
ST9320325ASG
ST9250315AS
ST9250315ASG
ST9160314AS
ST9160314ASG
ST9120315AS
ST9120315ASG
ST980313AS
ST980313ASG
ST9500325ASG
ST9320325AS
ST9320325ASG
ST9250315AS
ST9250315ASG
ST9160314AS
ST9160314ASG
ST9120315AS
ST9120315ASG
ST980313AS
ST980313ASG
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
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