Seagate ST750DM003, STBD3000100 Identify Device command, Word Description Value, 0C5AH, Ascii

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SATA Interface

4.3.1 Identify 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 on page 30. 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.

The following commands contain drive-specific features that may not be included in the SATA specification.

Table 11 Identify Device commands

Word

Description

Value

 

 

 

0

Configuration information:

0C5AH

 

• Bit 15: 0 = ATA; 1 = ATAPI

 

 

• 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

8010H

 

and Write multiple (16)

 

 

 

 

48

Reserved

0000H

 

 

 

49

Standard Standby timer, IORDY supported and may be

2F00H

 

disabled

 

 

 

 

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

 

 

 

Barracuda SATA Product Manual, Rev. G

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Contents Barracuda Revision Date Description of Change Document Revision HistoryContents Barracuda Sata Product Manual, Rev. G Figures Barracuda Sata Product Manual, Rev. G Seagate Technology Support Services Barracuda Sata Product Manual, Rev. G About the Sata interface IntroductionIntroduction Specification summary tables Drive SpecificationsDrive Specifications Drive Specification ST500DM002 ST320DM000 ST250DM000 Formatted capacity Model Formatted Guaranteed Bytes per sector Capacity SectorsLBA mode Default logical geometryRecording and interface technology Seek time Physical characteristicsPower consumption Power specificationsStart/stop times DiskDC power requirements 3-disk 3TB and 2TB models Power modes Heads Spindle Buffer Power-management modesConducted noise Voltage toleranceTemperature gradient Environmental specifications Ambient temperatureHumidity AltitudeAcoustics Non-operating vibrationAgency certification Safety certification WarrantyTest for Prominent Discrete Tones PDTs Electromagnetic immunityFCC verification Electromagnetic compatibilityKorean RRL Australian C-Tick N176Environmental protection China Restriction of Hazardous Substances RoHS DirectiveCorrosive environment Handling and static-discharge precautions Configuring the driveSata cables and connectors Attaching Sata cabling Drive mountingMounting dimensions 1-disk 1TB and 750GB models Mounting dimensions 1-disk 500GB, 320GB and 250GB models Segment Pin Function Definition Sata InterfaceSupported ATA commands Command name Command code in hexE5H EAH E7HECH E3HE6H C6HB0H / DAH E2HWord Description Value Identify Device command0C5AH AsciiBE09H Xx07HFffeh Bit WordMedia serial number is supported 0AH Set Features command0BH 0CHCode in features register A.R.T. command 3 S.M.A.R.T. commandsIndex Barracuda Sata Product Manual, Rev. G Barracuda Sata Product Manual, Rev. G Page Page Americas Seagate Technology LLC