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Serial ATA Interface

Table 7 Supported ATA commands (continued)

 

 

Command name

Command code (in hex)

 

 

Write Multiple

C5H

Write Multiple Extended

39H

Write Multiple FUA Extended

CEH

Write Sectors

30H

Write Sectors Without Retries

31H

Write Sectors Extended

34H

Write Stream DMA Extended

3AH

Write Stream Extended

3BH

Write Uncorrectable

45H

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 4096-byte block of data, whose contents are shown 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 Serial ATA specification.

Table 8 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

C837H

 

 

 

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

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)

 

 

 

 

Pipeline HD SATA Product Manual, Rev. F

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Seagate ST1000VM002, ST2000VM003, 100633414 manual Identify Device command, Word Description Value

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