Interface

Table 5.32 DEVICE CONFIGURATION IDENTIFY data structure (2/2)

Word

Value

 

 

Content

 

 

 

 

8

X '0015'

 

Serial-ATA command set/function

 

 

 

→ Reflected in IDENTIFY information "Word 76 to 79".

 

 

 

Bits 15-5:

Reserved

 

 

 

Bit 4:

1 = Software Settings Preservation supported

 

 

 

Bit 3:

1 = Asynchronous Notification supported

 

 

 

Bit 2:

1 = Interface power management supported

 

 

 

Bit 1:

1 = Non-zero buffer offsets in DMA Setup FIS

 

 

 

 

supported

 

 

 

Bit 0:

1 = Native command queuing supported

 

 

 

 

9

X '0000'

 

Reserved for Serial-ATA

 

 

 

 

 

10 to 20

X '0000'

 

Reserved

 

 

 

 

 

21

X '2000'

 

Bits 15-14: Reserved

 

(X '2800' *1)

 

Bit 13:

Write uncorrectable is supported.

 

 

 

Bit 12:

Reserved

 

 

 

Bit 11:

Freefall Control feature set is supported. *1

 

 

 

Bit 10-0:

Reserved

 

 

 

 

 

22 to 254

X '0000'

 

Reserved

 

 

 

 

 

 

255

X 'xxA5'

 

Bits 15-8:

Check sum code (This is obtained by calculating the

 

 

 

 

sum of all upper bytes and lower bytes in WORD 0 to

 

 

 

 

256 and the byte consisting of bits 7 to 0 in WORD

 

 

 

 

255, and then calculating the two's complement of the

 

 

 

 

lowest byte of that sum.)

 

 

 

Bits 7-0:

 

 

 

 

 

 

 

*1: Optional

 

 

5-88

C141-E262

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