Seagate ST9402112A ユーザーズマニュアル

26

Momentus 4200.2 Product Manual, Rev. C

The Identify Device command (command code EC

H

) 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 7 on 
page 24. 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 Draft ATA-6 Standard.   

  

      

Security Freeze Lock

F5

H

Security Disable Password

F6

H

0

Configuration information:

 

• Bit 15: 0 = ATA; 1 = ATAPI

 

• Bit 7: removable media

 

• Bit 6: removable controller

 

• Bit 0: reserved

0C5A

H

1

Number of logical cylinders

16,383

2

ATA-reserved

0000

H

3

Number of logical heads

16

4

Retired

0000

H

5

Retired

0000

H

6

Number of logical sectors per logical track: 63

003F

H

7–9

Retired

0000

H

10–19

Serial number: (20 ASCII characters, 0000

H

 = none)

ASCII

20

Retired

0000

H

21

Retired

0400

H

22

Obsolete

0000

H

23–26

Firmware revision

 

(8 ASCII character string, padded with blanks to end of string)

x.xx

27–46

Drive model number: (40 ASCII characters, padded with 
blanks to end of string)

ST9120824A

 

ST9100825A

 

ST980829A

 

ST960812A

 

ST950814A

 

ST9402112A

 

ST930218A

47

(Bits 7–0) Maximum sectors per interrupt on Read multiple 
and Write multiple (16)

8010

H

48

Reserved

0000

H

49

Standard Standby timer, IORDY supported and may be 
disabled

2F00

H

50

ATA-reserved

0000

H