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Word
Description
89
Security erase time
90
Enhanced security erase time
92
Master password revision code
93
Hardware reset value (see description following this table)
94
Auto acoustic management setting
95–99
ATA-reserved
100–103
Total number of user-addressable LBA sectors available
(see Section 3.2 for related information)
These words are required for drives that support the 48-bit
addressing feature. Maximum value: 0000FFFFFFFFFFFFh.
104–118
ATA-reserved
119
Free Fall Protection support (bit 5)
120
Free Fall Protection enable/disable (bit 5)
121–127
ATA-reserved
128
Security status
129–159
Seagate-reserved
160–254
ATA-reserved
255
Integrity word
Note.
See the bit descriptions below for words 63, 88, 93 and 94 of the Identify Drive data:
Description (if bit is set to 1)
Bit
Word 63
0
Multiword DMA mode 0 is supported.
1
Multiword DMA mode 1 is supported.
2
Multiword DMA mode 2 is supported.
8
Multiword DMA mode 0 is currently active.
9
Multiword DMA mode 1 is currently active.
10
Multiword DMA mode 2 is currently active.
30
Value
0000
H
0000
H
FFFE
H
xxxx
H
xxxx
H
0000
H
ST9750422AS
= 1,465,149,168
ST9750421AS
= 1,465,149,168
ST9750420AS
= 1,465,149,168
ST9750420ASG = 1,465,149,168
ST9640422AS
= 1,250,284,896
ST9640421AS
= 1,250,284,896
ST9640420AS
= 1,250,284,896
ST9640420ASG = 1,250,284,896
ST9500424AS
=
976,773,168
ST9500423AS
=
976,773,168
ST9500423ASG =
976,773,168
0000
H
1 = Free Fall Protection supported
0 = Free Fall Protection not supported
1 = Free Fall Protection feature is enabled
0 = Free Fall Protection feature is disabled
0000
H
0001
H
xxxx
H
0000
H
xxA5
H
Momentus Product Manual, Rev. A
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