Seagate ST9120821AS, ST98823AS, ST96812AS, ST94813AS manual Description if bit is set to Bit Word

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Word	Description	Value

93	Hardware reset value	xxxxH
	(see description following this table)

94	Auto acoustic management setting	xxxxH

95–99	ATA-reserved	0000H

100–	Total number of user-addressable LBA sectors available	ST9120821AS = 234,441,648
103	(see Section 2.2 for related information)	ST9100824AS = 195,371,568
	(see Section 2.2 for related information)	ST98823AS = 156,301,488
	These words are required for drives that support the 48-bit	ST98823AS = 156,301,488
	These words are required for drives that support the 48-bit	ST96812AS = 117,210,240
	addressing feature. Maximum value: 0000FFFFFFFFFFFFh.	ST96812AS = 117,210,240
	addressing feature. Maximum value: 0000FFFFFFFFFFFFh.	ST94813AS = 78,140,160
		ST94813AS = 78,140,160
		ST93811AS = 58,605,120

104–	ATA-reserved	0000H
127

128	Security status	0001H

129–	Seagate-reserved	xxxxH
159

160–	ATA-reserved	0000H
254

255	Integrity word	xxA5H

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

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.

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.

28	Momentus 5400.2 SATA Product Manual, Rev. C

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Contents Momentus 5400.2 Sata Page Contents Momentus 5400.2 Sata Product Manual, Rev. C List of Figures Page Introduction Momentus 5400.2 Sata disc driveAbout the Serial ATA interface Drive specifications Specification summary tableWarranty information for your drive Formatted capacity Default logical geometryLBA mode Cylinders Read/write heads Sectors per track 16,383Physical organization Physical characteristicsDrive specification Recording and interface technologyTypical seek times Seek timeStart/stop times Typical seek times msec Read WritePower specifications Deferred spinup Additional detailsActive mode Power-management modesPower management modes Idle modeEnvironmental specifications Nonoperating shock ShockOperating shock VibrationDrive level acoustics AcousticsElectromagnetic immunity Radio frequency environmentsReliability Safety certificationMeasurement type Specification Agency certificationAustralian C-Tick N176 Korean RRLFCC verification Corrosive environment Environmental protectionEuropean Union Restriction of Hazardous Substances RoHS Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions-top, side and end view Drive mountingMomentus 5400.2 Sata Product Manual, Rev. C Serial ATA Sata interface Serial ATA connector pin definitionsSignal Segment Pin Function DefinitionPin Function Definition P10 Ground 2nd mate P11 ReservedSupported ATA commands Command name Command code in hex ATA-standard commandsCommand name Command code in hex ATA-standard security commands Momentus 5400.2 Sata Product Manual, Rev. C Identify Device command Word Description ValueXx07H Description if bit is set to Bit Word Bit WordSet Features command Set Features command valuesA.R.T. commands 3 S.M.A.R.T. commandsCode in features register A.R.T. command Presales Support Seagate Technology support servicesInternet Technical SupportData Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Index ITE Sata Momentus 5400.2 Sata Product Manual, Rev. C Page Seagate Technology LLC