S
EAGATE
L
APTOP
U
LTRATHIN
HDD SATA P
RODUCT
M
ANUAL
, R
EV
. C
20
S
ERIAL
ATA (SATA) I
NTERFACE
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
60–61
Total number of user-addressable sectors
This field contains a value that is one greater than the total number of
user-addressable sectors. The maximum value that shall be placed in this
field is 0FFFFFFFh. The 0FFFFFFFh value applies to all capacities over
137GB (see Section 2.1 for related information).
ST500LT032 = 0FFFFFFFh
ST500LT033 = 0FFFFFFFh
ST320LT030 = 0FFFFFFFh
ST320LT031 = 0FFFFFFFh
62
Retired
0000
H
63
Multiword DMA active and modes supported
(see note following this table)
xx
07
H
64
Advanced PIO modes supported (modes 3 and 4 supported)
0003
H
65
Minimum multiword DMA transfer cycle time per word (120 ns)
0078
H
66
Recommended multiword DMA transfer cycle time per word (120 ns)
0078
H
67
Minimum PIO cycle time without IORDY flow control (240 ns)
0078
H
68
Minimum PIO cycle time with IORDY flow control (120 ns)
0078
H
69–74
ATA-reserved
0000
H
75
Queue depth
001F
H
76
Serial ATA capabilities
0D06
H
77
ATA-reserved
0000
H
78
Serial ATA features supported
0048
H
79
Serial ATA features enabled
0048
H
80
Major version number
01F0
H
81
Minor version number
0029
H
82
Command sets supported
746B
H
83
Command sets supported
7D69
H
84
Command sets support extension
61E3
H
85
Command sets enabled
7469
86
Command sets enabled
BC49
H
87
Command sets enable extension
61E3
H
88
Ultra DMA support and current mode (see note following this table)
xx
7F
H
89
Security erase time
xxxx
H
90
Enhanced security erase time
xxxx
H
91
Current APM values
8080
H
92
Master password revision code
FFFE
H
Table 7
Identify Device command
Word
Description
Value
