Seagate ST3160316CS, ST3250312CS, ST3250412CS manual 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

Video 3.5 HDD Product Manual, Rev. J

29

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Contents Video 3.5 HDD Revision Date Sheets affected or comments Revision historyPipeline HD.2 Series Sata Product Manual, Rev. J Pipeline HD.2 Series Sata Product Manual, Rev. J Contents Pipeline HD.2 Series Sata Product Manual, Rev. J Introduction About the Serial ATA interface Specification summary tables Drive specificationsDrive specification ST31000424CS ST31000322CS Drive specifications summary for 1000GB modelsVideo 3.5 HDD Product Manual, Rev. J Drive specifications summary for 500 and 320GB models Video 3.5 HDD Product Manual, Rev. J Drive specification ST3250412CS ST3250312CS ST3160316CS Drive specifications summary for 250 and 160GB modelsVideo 3.5 HDD Product Manual, Rev. J Recording and interface technology Default logical geometryLBA mode Formatted capacityStart/stop times Physical characteristicsSeek time Power specifications Voltage tolerance Typical current profilesConducted noise Sleep mode Power management modesActive mode Idle modeEnvironmental specifications Vibration ShockOperating shock Non-operating shockTest for Prominent Discrete Tones PDTs Drive A-weighted Sound Power Levels SWL, BAAcoustics emissions Electromagnetic immunityAnnualized Failure Rate AFR Safety certificationReliability Agency certificationFCC verification Korean RRLAustralian C-Tick N176 China Restriction of Hazardous Substances RoHS Directive Environmental protectionCorrosive environment Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions for 1000GB modelsMounting dimensions for 500, 320, 250 and 160GB models 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 F3H Word Description Value Identify Device commandXx07H Bit Word Description if bit is set to Bit WordIdle Immediate command with Iunload faeture is supported 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 Seagate Technology support services Data Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index RRL Page Video 3.5 HDD Product Manual, Rev. J Page Seagate Technology LLC
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