Word
Description
ST Value
52
Obsolete
0200
H
53
Current valid
0003
H
0001
H
words 54–58, 64–70
valid
54
Number of current logical
cylinders
ST36450A = 13,328
ST35040A = 10,352
55
Number of current logical
heads
15
56
Number of current
sectors
63
57–58
Current capacity in
sectors (CHS)
ST36450A = 12,594,960
ST35040A = 9,782,640
59
xx
H
= Current setting for
number of sector 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
ST35040A = 9,782,640
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
240 nsec
68
Minimum PIO transfer
with IORDY flow control
120 nsec
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30
Medalist Pro 6450/5040 Product Manual, February 1997
Summary of Contents for ST35040A
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