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Word Description Value
53
Current valid
ST36450A
ST36451A
0003
H
0001
H
words 54–58 and
64–70 are valid
0007
H
words 54–58, 64–70
and 85–85 are valid
54
Number of current logical
cylinders
ST36450A = 13,328
ST36451A = 13,328
55
Number of current logical
heads
15
56
Number of current
sectors
63
57–58
Current capacity in
sectors (CHS)
ST36450A = 12,594,960
ST36451A = 12,594,960
59
xx
H
= Current setting for
number of sectors that
can be transferred per
interrupt on Read/Write
Multiple command
0000s
60–61
Total number of user-
addressable LBA sectors
ST36450A = 12,594,960
ST36451A = 12,594,960
62
Obsolete 0000
63
Multiword DMA transfer
mode active
0107
H
Mode 0 is active
Modes 0, 1, and 2 supported
64
Advanced PIO transfer
mode supported
0003
H
Modes 3 and 4 supported
65
Minimum multiword DMA
transfer cycle time per
word
120 nsec
66
Manufacturer
recommended multiword
DMA transfer cycle time
120 nsec
67
Minimum PIO transfer
cycle time without flow
control
120 nsec
continued from previous page
30 Medalist Pro 6450/6451 Product Manual, Rev. B