Seagate ST910021A, ST980825A, ST96023A, ST94015A 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

ST910021A,

 

blanks to end of string)

ST980825A

 

 

ST96023A

 

 

ST94015A

 

 

 

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

 

 

 

57–58

Current capacity in sectors

xxxxH

 

 

 

Momentus 7200.1 PATA Product Manual, Rev. C

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Contents ST910021A ST980825A ST96023A ST94015A Momentus 7200.1 PataPage Contents Momentus 7200.1 Pata Product Manual, Rev. C List of Figures Momentus 7200.1 Pata Product Manual, Rev. C Momentus 7200.1 Pata disc drive IntroductionMomentus 7200.1 Pata Product Manual, Rev. C Drive specification ST910021A ST980825A ST96023A ST94015A Drive specificationsSpecification summary Specifications+5V ± 5% / -8% startup Physical organization Default logical geometryLBA mode Formatted capacityTechnology Specification Physical characteristicsRecording and interface technology Time to ready Typical Max Seek timeTime to ready Typical seek times msec Read WritePower specifications Conducted noise Typical current profileVoltage tolerance Idle mode Power-management modesPower management modes Active modeEnvironmental specifications Vibration ShockOperating shock Nonoperating shockElectromagnetic immunity AcousticsElectromagnetic immunity Drive level acousticsAgency certification Safety certificationMeasurement type Specification ReliabilityAustralian C-Tick N176 Korean RRLFCC verification European Union Restriction of Hazardous Substances RoHS Environmental protection表示该部件(于同类物品程度上)所含的危险和有毒物质超出中国 Momentus 7200.1 Pata Product Manual, Rev. C Master/slave configuration Configuring and mounting the driveHandling and static discharge precautions Jumper settingsCable-select option Drive mountingCable Connector Conductor Contact Signal Name ATA interface signals and connector pinsConnector signals Connector Cable Signal Name Contact ConductorSupported commands Supported ATA commandsCommand name Command code in hex ATA-standard commands ATA-standard power-management commands Command name Command code in hexATA-standard security commands Supported commands Word Description Value Identify Device commandXx07H Bit Word Description if bit is set to Bit WordFeatures register values Set Features commandTechnical Support Seagate Technology support servicesInternet Presales SupportData Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Index Page Page Momentus 7200.1 Pata Product Manual, Rev. C Page Seagate Technology LLC