Seagate ST3500320AS, ST31000340AS, ST31000640AS Identify Device command, Word Description Value

Page 35

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 8 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:

 

 

• 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 (8 ASCII character string, padded with blanks to end

x.xx

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 or Write Multiple

xxxxH

command

Barracuda 7200.11 Serial ATA Product Manual, Rev. G

29

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Contents Barracuda 7200.11 Serial ATA Revision Date Sheets affected or comments Revision historyContents Barracuda 7200.11 Serial ATA Product Manual, Rev. G Typical 5V startup and operation current profile List of FiguresPage Introduction About the Serial ATA interface Drive specifications Drive specifications summary for 1000 and 750 Gbyte models Barracuda 7200.11 Serial ATA Product Manual, Rev. G Drive specifications summary for 640 Gbyte models Will display the warranty information for your drive Drive specifications summary for 500 Gbyte models Barracuda 7200.11 Serial ATA Product Manual, Rev. G Recording and interface technology Default logical geometryLBA mode Formatted capacityTypical seek times msec Read Write Physical characteristicsSeek time Start/stop timesPower specifications Typical 12V startup and operation current profile Typical 5V startup and operation current profileSleep mode Power-management modesActive mode Idle modeEnvironmental specifications 1000 GB, 750 GB and 500 GB models VibrationOperating vibration Nonoperating vibrationTest for Prominent Discrete Tones PDTs AcousticsElectromagnetic immunity Fluid Dynamic Bearing FDB motor acousticsElectromagnetic compatibility Safety certificationReliability Agency certificationFCC verification Korean RRLAustralian C-Tick N176 Corrosive environment Environmental protection383  Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensionsBarracuda 7200.11 Serial ATA Product Manual, Rev. G Hot-Plug compatibility Serial ATA Sata interfacePin Function Definition Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions SignalCommand name Command code in hex Supported ATA commandsSupported ATA commands F4H Word Description Value Identify Device commandXx07H Bit Word Description if bit is set to Bit WordWord Set Features command values Set Features commandCode in features register A.R.T. command 3 S.M.A.R.T. commandsM.A.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 ITE Page Barracuda 7200.11 Serial ATA Product Manual, Rev. G Page Disc Drive, Scotts Valley, California 95066-4544, USA
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ST3640630AS, ST3500820AS, ST3500320AS, ST3500620AS, ST31000640AS specifications

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