Seagate MARATHON 1680 Product Manual page 38

30 Marathon 2250 and Marathon 1680 Product Manual
continued from previous page
Word
Drive model number: (40 ASCII characters,
27–46
padded with blanks to end of string)
Maximum sectors per interrupt on read/write
47
multiple
48 Double word I/O (not supported)
Standby timer values supported per ATA
49 standard, IORDY supported, IORDY can
be disabled
50 ATA-reserved
51 PIO data-transfer cycle timing mode
52 DMA transfer cycle timing mode (not used)
Validity of words 54–58 and words 64–70
53
(words may be valid)
Number of cylinders
54
(current emulation mode)
Number of heads
55
(current emulation mode)
Number of sectors per track
56
(current emulation mode)
57–58 Number of sectors (current emulation mode)
Number of sectors transferred during a Read
59
Multiple or Write Multiple command
60–61 LBA sectors available
62 ATA obsolete
Multiword DMA active/modes supported
63
(see note following)
Advanced PIO modes supported (modes 3
64
and 4 supported)
Description Contents
ST92255AG or
ST91685AG
0010
H
0000
H
2C00
H
0000
H
0200
H
0000
H
0003
H
xxxx
H
xxxx
H
xxxx
H
xxxx
H
01 xx
H
(ST92255AG)
0FBC 0043H
(ST91685AG)
017FC 0032H
0000
H
0 x 07
H
0003
H