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26
Word
Description
48
Reserved
49
Standard Standby timer,
IORDY supported and may
be disabled
50
Device-specific standby
timer value
51
PIO data-transfer cycle
timing mode
52
Retired
53
Words 54–58, 64–70 and 88
are valid
54
Number of current logical
cylinders
55
Number of current logical
heads
56
Number of current logical
sectors per logical track
57–58
Current capacity in sectors
59
Number of sectors trans-
ferred during a Read Multiple
or Write Multiple command
60–61
Total number of user-addres-
sable LBA sectors available
62
Retired
63
Multiword DMA active and
modes supported (see note
following this table)
64
Advanced PIO modes sup-
ported (modes 3 and 4 sup-
ported)
U8 Family Product Manual, Rev. A
Value
0000
2F00
0000
0200
0200
0007
xxxx
xxxx
xxxx
xxxx
xxxx
ST317221A = 33,683,328
ST313021A = 25,434,228
ST38410A = 16,841,664
ST34313A = 8,452,080
0000
xx 07
0003
H
H
H
H
H
H
H
H
H
H
H
H
H
H
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