Seagate ST120FP0021 ユーザーズマニュアル

S

EAGATE 

600 P

RO 

SSD P

RODUCT 

M

ANUAL

, R

EV

. A

  26

  

The Identify Device command (command code EC

H

) transfers information about the drive to the host following power up. 

All 

reserved 

bits 

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

0

General configuration

0C5A

H

1

Number of logical cylinders (obsolete) 16,383

3FFF

H

2

Specific configuration

C837

H

3

Number of logical heads (obsolete) 16

0010

H

4-5

Retired

0000

H

6

Number of logical sectors per logical track (obsolete) 63

003F

H

7–8

Reserved for CompactFlash Association

0000

H

9

Retired

0000

H

10–19

Serial number: (ATA ASCII string padded with spaces (20

H

))

ASCII

20-21

Retired

0000

H

22

Obsolete

0004

H

23–26

Firmware revision (ATA ASCII string padded with spaces (20h))

ASCII

27–46

Model number (ATA ASCII string padded with spaces (20h))

ASCII

47

(Bits 7-0) Maximum number of logical sectors that shall be transferred 
per DRQ data block on READ/WRITE MULTIPLE commands.  16

8010

H

48

Reserved for Trusted Computing feature set options

4000

H

49

Capabilities – Standby Timer, IORDY Support, etc

2F00

H

50

Capabilities Continued

4000

H

51

PIO data transfer cycle timing option (Obsolete) 

0200

H

52

Retired

0200

H

53

Words 54–58, 64–70 and 88 are valid

0006

H

54

Number of current logical cylinders (Obsolete)

3FFF

H

55

Number of current logical heads (Obsolete)

0010

H

56

Number of current logical sectors per logical track (Obsolete)

003F

H

57–58

Current capacity in sectors (Obsolete)

FC10

H   

00FB

H

59

Number of LBAs transferred per Read Multiple or Write Multiple.      
Sanitize Command Support

0010

H

60–61

Total number of user addressable logical sectors for 28-bit commands  
Note: The maximum value allowed in this field is:  0FFFFFFFh. If this 
field contains 0FFFFFFFh and the device has user addressable LBAs 
greater than or 137GB,  then words 100..103 contain the total number 
of user addressable LBAs

XXXXXXXX

H

*

62

Obsolete

0000

H

63

Multiword DMA active and modes supported 
(see note following this table)

0407

H

64

Advanced PIO modes supported.  SATA = 0003h

0003

H

65

Minimum Multiword DMA transfer cycle time per word  (120ns)

0078

H

66

Recommended Multiword DMA transfer cycle time (120ns) 

0078

H