Seagate ST9400321AS, ST9640320AS, ST9640322AS, ST9500320AS manual Description if bit is set to Bit

Word	Description	Value
100–103	Total number of user-addressable LBA sectors available	0FFFFFFFh
	(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	0000H
119	Free Fall Protection support (bit 5)	1 = Free Fall Protection supported
		0 = Free Fall Protection not supported
120	Free Fall Protection enable/disable (bit 5)	1 = Free Fall Protection feature is enabled
		0 = Free Fall Protection feature is disabled
121–127	ATA reserved	0000H
128	Security status	0001H
129–159	Seagate-reserved	xxxxH
160–254	ATA-reserved	0000H
255	Integrity word	xxA5H

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

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.

10Multiword 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.

10Ultra DMA mode 2 is currently active.

11Ultra DMA mode 3 is currently active.

12Ultra DMA mode 4 is currently active.

13Ultra DMA mode 5 is currently active.

14Ultra DMA mode 6 is currently active.

Bit Word 93

131 = 80-conductor cable detected, CBLID above VIH 0 = 40-conductor cable detected, CBLID below VIL

Momentus Product Manual, Rev. D 29