Seagate ST480HM000 User Manual
S
EAGATE
600 SSD P
RODUCT
M
ANUAL
, R
EV
. A
24
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.
All
reserved
bits
The following commands contain drive-specific features that may not be included in the Serial ATA specification.
W
ORD
D
ESCRIPTION
V
ALUE
0
General configuration
0040
H
1
Number of logical cylinders (obsolete) 16,383
3FFF
H
2
Specific configuration
C837
H
3
Number of logical heads (obsolete) 16
0010
H
4-5
Retired
0000
H
6
Number of logical sectors per logical track (obsolete) 63
003F
H
7–8
Reserved for CompactFlash Association
0000
H
9
Retired
0000
H
10–19
Serial number: (ATA ASCII string padded with spaces (20
H
))
ASCII
20-21
Retired
0000
H
22
Obsolete
0000
H
23–26
Firmware revision (ATA ASCII string padded with spaces (20h))
ASCII
27–46
Model number (ATA ASCII string padded with spaces (20h))
ASCII
47
(Bits 7-0) Maximum number of logical sectors that shall be transferred per DRQ data
block on READ/WRITE MULTIPLE commands. 16
block on READ/WRITE MULTIPLE commands. 16
8010
H
48
Reserved for Trusted Computing feature set options
4000
H
49
Capabilities – Standby Timer, IORDY Support, etc
2F00
H
50
Capabilities Continued
4000
H
51
PIO data transfer cycle timing option (Obsolete)
0000
H
52
Retired
0000
H
53
Words 54–58, 64–70 and 88 are valid
0006
H
54
Number of current logical cylinders (Obsolete)
3FFF
H
55
Number of current logical heads (Obsolete)
0010
H
56
Number of current logical sectors per logical track (Obsolete)
003F
H
57–58
Current capacity in sectors (Obsolete)
FC10
H
00FB
H
59
Number of LBAs transferred per Read Multiple or Write Multiple. Sanitize Command
Support
Support
9110
H
60–61
Total number of user addressable logical sectors for 28-bit commands Note: The maxi-
mum value allowed in this field is: 0FFFFFFFh. If this field contains 0FFFFFFFh and the
device has user addressable LBAs greater than or 137GB, then words 100..103 contain
the total number of user addressable LBAs
mum value allowed in this field is: 0FFFFFFFh. If this field contains 0FFFFFFFh and the
device has user addressable LBAs greater than or 137GB, then words 100..103 contain
the total number of user addressable LBAs
XXXXXXXX
H
62
Obsolete
0000
H
63
Multiword DMA active and modes supported
(see note following this table)
(see note following this table)
0007
H
64
Advanced PIO modes supported. SATA = 0003h
0003
H
65
Minimum Multiword DMA transfer cycle time per word (120ns)
0078
H
66
Recommended Multiword DMA transfer cycle time (120ns)
0078
H