Seagate ST3160022A Product Manual page 40

30
Word
47 (Bits 7–0) Maximum sectors per interrupt
on Read multiple and Write multiple (16)
48 Reserved
49 Standard Standby timer, IORDY sup-
ported and may be disabled
50 ATA-reserved
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 log-
ical track
57–58 Current capacity in sectors
59 Number of sectors transferred during a
Read Multiple or Write Multiple command
60–61 Total number of user-addressable LBA
sectors available
(see Section 2.2 for related information)
*Note: The maximum value allowed in
this field is: 0FFFFFFFh (268,435,455
sectors, 137 Gbytes). Drives with capaci-
ties over 137 Gbytes will have
0FFFFFFFh in this field and the actual
number of user-addressable LBAs speci-
fied in words 100-103. This is required for
drives that support the 48-bit addressing
feature.
62 Retired
63 Multiword DMA active and modes sup-
ported (see note following this table)
64 Advanced PIO modes supported (modes
3 and 4 supported)
Description
U Series 9 Product Manual, Rev. C
8010
H
0000
H
2F00
H
0000
H
0200
H
0200
H
0007
H
xxxx
H
xxxx
H
xxxx
H
xxxx
H
xxxx
H
ST3160022A =0FFFFFFFh*
ST3120025A = 234,441,648
ST380012A = 156,301,488
0000
H
xx07
H
0003
H
Value