Seagate ST32000641AS 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 Table 6 on page 21. 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 specification.

Word

Description

Value

 

 

 

 

Configuration information:

 

 

• Bit 15: 0 = ATA; 1 = ATAPI

0C5AH

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 string)

 

 

 

47

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

8010H

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

57–58

Current capacity in sectors

xxxxH

59

Number of sectors transferred during a Read Multiple

xxxxH

or Write Multiple command

Barracuda XT Series SATA Product Manual, Rev. C

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Contents
ST32000641AS Barracuda XT Series SataRevision Date Sheets affected or comments Revision historyContents Barracuda XT Series Sata Product Manual, Rev. C List of Figures Barracuda XT Series Sata Product Manual, Rev. C Introduction About the Serial ATA interface Drive specifications summary for 2000GB models Drive specificationsRanty information for your drive LBA mode Default logical geometryFormatted capacity Recording and interface technology2000GB model Physical characteristicsStart/stop times Power specifications Typical current profiles Active mode Power management modesIdle mode Sleep modeEnvironmental specifications Operating shock ShockNonoperating shock VibrationAcoustics Drive A-weighted Sound Power Levels SWL, BAElectromagnetic immunity Test for Prominent Discrete Tones PDTsSafety certification WarrantyAgency certification Electromagnetic Compatibility EMCFCC verification Korean RRLAustralian C-Tick N176 Corrosive environment Environmental protectionHandling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions 2000GB modelHot-Plug compatibility Serial ATA Sata interfaceSerial ATA connector pin definitions Serial ATA device plug connector pin definitionsSignal Segment Pin Function DefinitionCommand name Command code in hex Supported ATA commandsSupported ATA commands F3H Word Description Value Identify Device commandXx07H Bit Word Description if bit is set to Bit WordBarracuda XT Series Sata Product Manual, Rev. C Set Features command values Set Features commandCode in features register A.R.T. command 3 S.M.A.R.T. commandsA.R.T. commands Technical Support Seagate Technology support servicesPresales Support Data Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index RRL Page Barracuda XT Series Sata Product Manual, Rev. C Page Seagate Technology LLC
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