Barracuda 7200.8 Serial ATA Product Manual, Rev. F
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Note. Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not supported
Note. See the bit descriptions below for words 63, 88, and 93 of the Identify Drive data.
100–
103 Total number of user-addressable LBA sectors available (see Section 2.2
for related information). These words are required for drives that support
the 48-bit addressing feature. Maximum value: 0000FFFFFFFFFFFFh.
ST3400832AS = 781,422,768
ST3400632AS = 781,422,768
ST3300831AS = 586,072,368
ST3300631AS = 586,072,368
ST3250823AS = 488,397,168
ST3250623AS = 488,397,168
ST3200826AS = 390,721,968
104–
127 ATA-reserved 0000H
128 Security status 0001H
129–
159 Seagate-reserved xxxxH
160–
254 ATA-reserved 0000H
255 Integrity w ord xxA5H
Description (if bit is set to 1)
Bit Word 63
0Multiword DMA mode 0 is supported.
1Multiword DMA mode 1 is supported.
2Multiword DMA mode 2 is supported.
8Multiword DMA mode 0 is currently active.
9Multiword DMA mode 1 is currently active.
10 Multiword DMA mode 2 is currently active.
Bit Word 88
0Ultra DMA mode 0 is supported.
1Ultra DMA mode 1 is supported.
2Ultra DMA mode 2 is supported.
3Ultra DMA mode 3 is supported.
4Ultra DMA mode 4 is supported.
5Ultra DMA mode 5 is supported.
6Ultra DMA mode 6 is supported.
8Ultra DMA mode 0 is currently active.
9Ultra 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.
14 Ultra DMA mode 6 is currently active.
Word Description Value