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Seagate ST930814AM, ST940813AM, ST940814AM, ST930813AM, ST920813AM manual Identify Device command

Models: ST940813AM ST920814AM ST920813AM ST940814AM ST930813AM ST930814AM

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4.1.2Identify Device command

The Identify Device command (command code ECH) transfers information about the drive to the host following power up. The data, shown below, is organized as a single 512-byte block of data. 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 ATA-6 Standard.

Word	Description	Value

0	Configuration information:	0C5AH
	• Bit 15: 0 = ATA; 1 = ATAPI
	• 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	x.xx
	(8 ASCII character string, padded with blanks to end of string)

27–46	Drive model number (40 ASCII characters, padded with blanks	ST940813AM
	to end of string)	ST940814AM
		ST930813AM
		ST930814AM
		ST920813AM
		ST920814AM

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

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

26	EE25 Series Product Manual, Rev. E

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Seagate ST930814AM, ST940813AM, ST940814AM, ST930813AM, ST920813AM, ST920814AM manual Identify Device command

Contents

Product Manual ST940813AM ST940814AM ST930813AM ST930814AM ST920813AM ST920814AMEE25 Series August Contents 1.0 Introduction 2.0 Drive specifications3.0 Configuring and mounting the drive 5.0 Seagate Technology support servicesEE25 Series Product Manual, Rev. E List of Figures EE25 Series Product Manual, Rev. E 1.0 Introduction EE25 Series Product Manual, Rev. E 2.0 Drive specifications 2.1 Specification summarySpecifications for 40 and 30 Gbyte models EE25 Series Product Manual, Rev. EEE25 Series Product Manual, Rev. E 1.0 G 200 - 500 Hz5.0 Gs 0 to peak, 5-500 Hz X, Y, Z axis 0, 22, 45 angles following web pageSpecifications for 20 Gbyte models 5% to 90% operatingDrive specification EE25 Series Product Manual, Rev. EST920813AM ST920814AM2.3 Default logical geometry 2.2 Formatted capacity2.4 Physical organization LBA mode2.6 Physical characteristics 2.5 Recording and interface technology2.7 Seek time SpecificationStart/stop times EE25 Series Product Manual, Rev. E2.9 Power specifications 2.9.1 Power consumptionSpinup power Read/write power and current2.9.1.1 Typical current profile 2.9.2 Conducted noise2.9.3 Voltage tolerance Figure 1. Typical 5V startup and operation current profile2.9.4 Power-management modes Idle and Standby timersActive mode Idle mode2.10 Environmental specifications 2.11 Altitude2.10.1 Ambient temperature 2.10.2 Temperature gradient2.11.1 Shock 2.11.1.1 Operating shock2.11.1.2 Nonoperating shock Figure 2. Temperature vs. altitude capability2.12 Acoustics 2.11.2 Vibration2.11.2.1 Operating vibration 2.11.2.2 Nonoperating vibrationReliability 2.13 Electromagnetic immunity2.14 2.15.1 Safety certification 2.15 Agency certification2.15.2 Electromagnetic compatibility Korean RRL2.16.1 European Union Restriction of Hazardous Substances RoHS 2.16 Environmental protection2.17 Corrosive environment EE25 Series Product Manual, Rev. E 3.0 Configuring and mounting the drive 3.1 Handling and static discharge precautions3.2 Jumper settings 3.2.1 Master/slave configuration3.3 Drive mounting 3.2.2 Cable-select option4.1 ATA interface signals and connector pins 4.0 ATA interface4.1.1 Supported ATA commands Command nameCommand code in hex ATA-standard commandsEE25 Series Product Manual, Rev. E 9AH, FAH, FBH4.1.2 Identify Device command xxxxH xxxxHxx07H xx3FHEE25 Series Product Manual, Rev. E xxxxH4.1.3 Set Features command Disable write cacheEE25 Series Product Manual, Rev. E 5.0 Seagate Technology support services Seagate Service CentersWarranty Support InternetCustomer Service Operations USA/Canada/Latin America support servicesEurope, the Middle East and Africa Support Services Asia/Pacific Support ServicesNumerics IndexPage Page EE25 Series Product Manual, Rev. E Page Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA