30
U7 Product Manual, Rev. D
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 log-
ical 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)
ST3120020A = 234,441,648
ST380022A = 156,301,488
ST360012A = 117,231,408
ST340012A = 78,165,360
ST330012A = 58,633,344
62
Retired
0000
H
63
Multiword DMA active and modes sup-
ported (see note following this table)
xx07
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)
00F0
H
68
Minimum PIO cycle time with IORDY flow
control (120 nsec)
0078
H
69–74
ATA-reserved
0000
H
75
Queue depth
0000
H
76–79
ATA-reserved
0000
H
80
Major version number
003E
H
81
Minor version number
0000
H
Word
Description
Value
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