Seagate ST3000NC000, ST1000NC001, ST1000NC000 manual Identify Device command, Word Description Value

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5.3.1Identify 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 on page 28. 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.

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

0000H

22

Obsolete

0000H

23–26

Firmware revision

xxxx

 

(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 multiple (16)

8010H

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

 

 

 

 

60–61

Total number of user-addressable LBA sectors available

0FFFFFFFh*

 

(see Section 2.2 for related information)

 

 

*Note: The maximum value allowed in this field is: 0FFFFFFFh (268,435,455 sectors,

 

 

137GB). Drives with capacities over 137GB will have 0FFFFFFFh in this field and the

 

 

actual number of user-addressable LBAs specified in words 100-103. This is

 

 

required for drives that support the 48-bit addressing feature.

 

 

 

 

62

Retired

0000H

63

Multiword DMA active and modes supported

xx07H

 

(see note following this table)

 

 

 

 

64

Advanced PIO modes supported (modes 3 and 4 supported)

0003H

65

Minimum multiword DMA transfer cycle time per word (120 nsec)

0078H

66

Recommended multiword DMA transfer cycle time per word

0078H

 

(120 nsec)

 

 

 

 

67

Minimum PIO cycle time without IORDY flow control (240 nsec)

0078H

Constellation CS Serial ATA Product Manual, Rev. C

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Contents ConstellationCS Serial ATA Revision Date Description of Change Document Revision HistoryContents Sata Interface Figures Seagate Technology Support Services Introduction About the Sata interface Specification summary tables Drive SpecificationsFormatted capacity Model Formatted capacity Guaranteed sectors Bytes per sectorLBA mode LBA modeDefault logical geometry Physical characteristicsStart/stop times Power specificationsPower consumption Seek timePeak operating current sequential write 3TB Drive DC power requirementsTypical current profiles 3TB model current profile 2TB model current profile 1TB model current profile Voltage tolerance Conducted noisePower modes Heads Spindle Buffer Power-management modesPowerChoice is invoked using one of two methods Extended Power Conditions PowerChoiceTMPower Condition Name Power Condition ID Description Power Condition Power Condition Name Identifiers Power Condition Name Manufacturer Default Timer ValuesEPC Subcommands Descriptions PowerChoice Supported Extended Power Condition IndentifiersOperating Ambient temperatureEnvironmental limits HumidityNon-operating AltitudeShock VibrationElectromagnetic immunity AcousticsTest for Prominent Discrete Tones PDTs Electromagnetic compatibility Agency certification Safety certificationAustralian C-Tick N176 FCC verificationKorean RRL Corrosive environment Product warrantyEnvironmental protection China Restriction of Hazardous Substances RoHS DirectiveProduct repair and return information ShippingStorage Sata cables and connectors Handling and static-discharge precautionsConfiguring the drive Drive mounting Mounting dimensionsData encryption Power requirementsATA Security Erase Unit Command on SED Sata drives Sanitize Feature Set on SED DrivesHot-Plug compatibility Sata InterfaceSata connector pin definitions Sata device plug connector pin definitionsCommand name Command code in hex Supported ATA commandsF1H Word Description Value Identify Device command69-74 Bit WordSmart error login is supported 0CH Set Features commandCode in features register A.R.T. command 3 S.M.A.R.T. commandsConstellation CS Serial ATA Product Manual, Rev. C IndexConstellation CS Serial ATA Product Manual, Rev. C Constellation CS Serial ATA Product Manual, Rev. C Americas Seagate Technology LLC