Seagate ST380011AS, ST3120827AS, ST3120026AS manual Identify Device command, Word Description Value

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

20	Retired	0000H

21	Retired	0400H

22	Obsolete	0000H

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

27–	Drive model number: (40 ASCII characters, padded with blanks to end of	ST3200822AS
46	string)	ST3160827AS
		ST3160023AS
		ST3160021AS
		ST3120827AS
		ST3120026AS
		ST3120022AS
		ST380817AS
		ST380013AS
		ST380011AS
		ST340111AS
		ST340014AS

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

48	Reserved	0000H

49	Standard Standby timer, IORDY supported and may be disabled	2F00H

50	ATA-reserved	0000H

51	PIO data-transfer cycle timing mode	0200H

52	Retired	0200H

28	Barracuda 7200.7 Serial ATA Product Manual, Rev. N

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Contents Barracuda 7200.7 Serial ATA Page Barracuda 7200.7 Serial ATA Page Contents Barracuda 7200.7 Serial ATA Product Manual, Rev. N List of Figures Page Introduction Native Command Queuing About the Serial ATA interfaceDrive specifications Specification summary tableSystem will display the warranty information for your drive Default logical geometry LBA modeFormatted capacity Cylinders Read/write heads Sectors per track 16,383Physical characteristics Drive specificationPhysical organization Recording and interface technologyPower specifications Seek timeStart/stop times Operating power and current Idle mode powerStandby mode Typical current profiles Deferred spinupAdditional details Conducted noiseVoltage tolerance Environmental specifications Temperature gradient Wet bulb temperatureHumidity Relative humidity AltitudeAcoustics VibrationOperating vibration Nonoperating vibrationElectromagnetic immunity ReliabilityRadio frequency environments Test Description Performance level Reference standardSafety certification Agency certificationElectromagnetic compatibility Korean RRLAustralian C-Tick N176 FCC verificationEnvironmental protection Corrosive environmentEuropean Union Restriction of Hazardous Substances RoHS Barracuda 7200.7 Serial ATA Product Manual, Rev. N Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsDrive mounting Mounting dimensions-top, side and end view Serial ATA Sata interface Hot-Plug compatibilitySerial ATA device plug connector pin definitions Serial ATA connector pin definitionsSignal Pin Function DefinitionPage Supported ATA commands Command name Command code in hex ATA-standard commandsCommand name Command code in hex ATA-standard power-management commandsATA-standard security commands Identify Device command Word Description ValueXxxxH Fffeh Description if bit is set to Bit Word Bit WordSet Features command Set Features command values3 S.M.A.R.T. commands M.A.R.T. commandsCode in features register A.R.T. command Barracuda 7200.7 Serial ATA Product Manual, Rev. N Internet MySeagate Reseller.seagate.com Presales SupportTechnical Support Warranty Service Data Recovery Services Authorized Service CentersData Recovery Services FAX services-All Europe toll call Call center Presales and Technical Support Warranty ServiceToll-free support numbers Asia/Pacific support services Publication feedback survey Barracuda 7200.7 Serial ATA Product Manual, Rev. N Index Mtbf RPM RRL Page Page Seagate Technology LLC