Seagate ST3160212ACE, ST3120213ACE, ST3200827ACE manual Description if bit is set to Bit Word

Word	Description	Value
100–103	Total number of user-addressable LBA sectors available	ST3500841ACE = 976,773,168
	(see Section 2.2 for related information)	ST3400833ACE = 781,422,768
		ST3300822ACE = 586,072,368
	These words are required for drives that support the 48-bit addressing	ST3250824ACE = 488,397,168
	feature. Maximum value: 0000FFFFFFFFFFFFh.	ST3200827ACE = 390,721,968
		ST3160212ACE = 312,581,808
		ST3120213ACE = 234,441,648
		ST3802110ACE = 156,301,488
104–127	ATA-reserved	0000H
128	Security status	0001H
129–159	Seagate-reserved	xxxxH
160–254	ATA-reserved	0000H
255	Integrity word	xxA5H

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:

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 VIH
	0 = 40-conductor cable detected, CBLID below VIL

DB35 Series 7200.2 Product Manual, Rev. D 35