Seagate ST94011A, ST94811A, ST92811A, ST92011A manual Identify Device command, Word Description Value

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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 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 Draft ATA-6 Standard.

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

x.xx

 

(8 ASCII character string, padded with blanks to end of string)

 

 

 

 

27–46

Drive model number: (40 ASCII characters, padded with blanks to end of

ST94011A

 

string)

ST92011A

 

 

ST94811A

 

 

ST92811A

 

 

 

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

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

57–58

Current capacity in sectors

xxxxH

Momentus 5400.1 Product Manual, Rev. F

23

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Contents ST94011A ST94811A ST92011A ST92811A MomentusPage Contents Momentus 5400.1 Product Manual, Rev. F List of Figures Momentus 5400.1 Product Manual, Rev. F Momentus 5400.1 disc drive IntroductionMomentus 5400.1 Product Manual, Rev. F Specification summary Drive specificationsSpecifications Drive specification ST94011A ST94811A ST92011A ST92811ASpecifications LBA mode Default logical geometryFormatted capacity Physical organizationRecording and interface technology Physical characteristicsTechnology Specification Time to ready Seek timeTypical seek times msec Read Write Time to ready Typical MaxPower specifications Voltage tolerance Typical current profileConducted noise Power management modes Power-management modesActive mode Idle modeEnvironmental specifications Operating shock ShockNonoperating shock VibrationElectromagnetic immunity AcousticsDrive level acoustics Electromagnetic immunityMeasurement type Specification Safety certificationReliability Agency certificationFCC verification Korean RRLAustralian C-Tick N176 Page Handling and static discharge precautions Configuring and mounting the driveJumper settings Master/slave configurationCable-select option Drive mountingConnector signals ATA interface signals and connector pinsConnector Cable Signal Name Contact Conductor Cable Connector Conductor Contact Signal NameCommand name Command code in hex ATA-standard commands Supported ATA commandsSupported commands ATA-standard security commands Command name Command code in hexATA-standard power-management commands Supported commands Word Description Value Identify Device commandXx07H Bit Word Description if bit is set to Bit WordFeatures register values Set Features commandCode in features register A.R.T. command 4 S.M.A.R.T. commandsSupported S.M.A.R.T. commands Momentus 5400.1 Product Manual, Rev. F Compatibility summary Installation considerationsSystem Compatibility Tested systemsTested Bios versions Bios versions testedOperating system versions tested Operating systems testedSoftware utilities Compatibility test configurationsOther certification Vendor ApplicationMomentus 5400.1 Product Manual, Rev. F Internet Seagate Technology support servicesPresales Support Technical SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Numerics IndexPage Page Momentus 5400.1 Product Manual, Rev. F Page Seagate Technology LLC
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