Seagate Momentus 5400.4 ST9120817AS Product Manual page 36

Word Description
95–99 ATA-reserved
100– Total number of user-addressable LBA sectors available
103
(see Section 2.2 for related information)
These words are required for drives that support the 48-bit
addressing feature. Maximum value: 0000FFFFFFFFFFFFh.
104– ATA-reserved
127
128 Security status
129– Seagate-reserved
159
160– ATA-reserved
254
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.
Bit Word 88
0 Ultra DMA mode 0 is supported.
1 Ultra DMA mode 1 is supported.
2 Ultra DMA mode 2 is supported.
3 Ultra DMA mode 3 is supported.
4 Ultra DMA mode 4 is supported.
8 Ultra DMA mode 0 is currently active.
9 Ultra DMA mode 1 is currently active.
10 Ultra DMA mode 2 is currently active.
11 Ultra DMA mode 3 is currently active.
12 Ultra DMA mode 4 is currently active.
13 Ultra DMA mode 5 is currently active.
Bit Word 93
13 1 = 80-conductor cable detected, CBLID above V
0 = 40-conductor cable detected, CBLID below V
28
Value
0000
H
ST9250827AS = 488,397,168
ST9200827AS = 390,721,968
ST9160827AS = 312,581,808
ST9120817AS = 234,441,648
0000
H
0001
H
xxxx
H
0000
H
xxA5
H
IH
IL
Momentus 5400.4 SATA Product Manual, Rev. A