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Word Description Contents
20
Controller type = dual-port multisector buffer
with caching (not used)
0000
H
21 Buffer size (not used) 0000
H
22 Number of ECC bytes available (4) 0004
H
23–26 Firmware revision (8 ASCII character string): x.xx
27–46
Drive model number: (40 ASCII characters,
padded with blanks to end of string)
ST33240A
or
ST32531A
47
(Bits 0–7) Maximum sectors per interrupt on
read/write multiple (16)
8010
H
48 Double word I/O (not supported) 0000
H
49
DMA data transfer, IORDY (supported), LBA
mode, ATA-2 standby times supported
0F01
H
50 ATA-reserved 0000
H
51 PIO data-transfer cycle timing mode 0100
H
52 DMA transfer cycle timing mode 0200
H
53
Validity of words 54–58 and words 64–70
(words may be valid)
0003
H
54 Number of cylinders (current emulation mode)
xxxx
H
55
Number of heads
(current emulation mode)
xxxx
H
56
Number of sectors per track
(current emulation mode)
xxxx
H
57–58 Number of sectors (current emulation mode)
xxxx
H
59
Number of sectors transferred during a Read
Multiple or Write Multiple command
01
xx
H
60
LBA sectors available (w/word 61):
6,303,024 (ST33240A)
4,995,648 (ST32531A)
2D30
H
(ST33240A)
3D4C
H
(ST32531A)
continued from previous page
26 Medalist 3240 and Medalist 2531 Product Manual, Rev. A