Seagate SV35 Series HDD Product Manual, Rev. E
22
www.seagate.com
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
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 LBA sectors available
(see Section 2.2 for related information)
*Note: The maximum value allowed in this field is: 0FFFFFFFh
(268,435,455 sectors, 137GB). Drives with capacities over 137GB will
have 0FFFFFFFh in this field and the actual number of user-addressable
LBAs specified in words 100-103. This is required for drives that support
the 48-bit addressing feature.
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 nsec)
0078
H
66
Recommended multiword DMA transfer cycle time per word (120 nsec)
0078
H
67
Minimum PIO cycle time without IORDY flow control (240 nsec)
0078
H
68
Minimum PIO cycle time with IORDY flow control (120 nsec)
0078
H
69–74
ATA-reserved
0000
H
75
Queue depth
001F
H
76
SATA capabilities
xxxx
H
77
Reserved for future SATA definition
xxxx
H
78
SATA features supported
xxxx
H
79
SATA features enabled
xxxx
H
80
Major version number
01F0
H
81
Minor version number
0028
H
82
Command sets supported
364B
H
83
Command sets supported
7F09
H
84
Command sets support extension (see note following this table)
4163
H
85
Command sets enabled
30
xx
H
86
Command sets enabled
BE09
H
87
Command sets enable extension
4163
H
Word
Description
Value
