Seagate ST94015AS, ST980825AS, ST96023AS manual Identify Device command, Word Description Value

Page 34

4.3.1Identify Device command

The Identify Device command (command code ECH) transfers information about the drive to the host following power up. The data is organized as a single 512-byte block of data, whose contents are shown in the table on page 27. All reserved bits or words should be set to zero. Parameters listed with an “x” are drive-specific or vary with the state of the drive. See Section 2.0 on page 3 for default parameter settings.

The following commands contain drive-specific features that may not be included in the Serial ATA specifica- tion.

Word	Description	Value

	Configuration information:	0C5AH
	• Bit 15: 0 = ATA; 1 = ATAPI
0	• Bit 7: removable media
	• Bit 6: removable controller
	• Bit 0: reserved

1	Number of logical cylinders	16,383

2	ATA-reserved	0000H

3	Number of logical heads	16

4	Retired	0000H

5	Retired	0000H

6	Number of logical sectors per logical track: 63	003FH

7–9	Retired	0000H

10–19	Serial number: (20 ASCII characters, 0000H = none)	ASCII

20	Retired	0000H

21	Retired	0400H

22	Obsolete	0000H

23–26	Firmware revision (8 ASCII character string, padded with	x.xx
	blanks to end of string)

27–46	Drive model number: (40 ASCII characters, padded with	ST910021AS,
	blanks to end of string)	ST980825AS
		ST96023AS
		ST94015AS

47	(Bits 7–0) Maximum sectors per interrupt on Read multiple	8010H
	and Write multiple (16)

48	Reserved	0000H
49	Standard Standby timer, IORDY supported and may be dis-	2F00H
	abled

50	ATA-reserved	0000H

51	PIO data-transfer cycle timing mode	0200H

52	Retired	0200H

53	Words 54–58, 64–70 and 88 are valid	0007H

54	Number of current logical cylinders	xxxxH

55	Number of current logical heads	xxxxH

56	Number of current logical sectors per logical track	xxxxH

28	Momentus 7200.1 SATA Product Manual, Rev. B

Image 34

Contents Momentus 7200.1 Sata ST910021AS ST980825AS ST96023AS ST94015ASPage Contents Momentus 7200.1 Sata Product Manual, Rev. B List of Figures Page Introduction About the Serial ATA Sata interface Drive specifications Specification summary tableTrack-to-track seek time msec typical 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 Typical current profilesAdditional details Active 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 Environmental protection European Union Restriction of Hazardous Substances RoHSCorrosive environment Momentus 7200.1 Sata Product Manual, Rev. B 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 7200.1 Sata Product Manual, Rev. B 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 power-management commandsMomentus 7200.1 Sata Product Manual, Rev. B 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 7200.1 Sata Product Manual, Rev. B Page Seagate Technology LLC