Serial ATA Flash Drive

AP-SAFD254QAxxxxS-XXHT

12

©2011 Apacer Technology Inc.

Rev. 1.5

Identify Device Information Default Value (3/9)

Word

Value

F/V

Description

53

0007h

F

F

F

X

15-3

Reserved

2

1 = the fields reported in word 88 are valid

0 = the fields reported in word 88 are not valid

1

1 = the fields reported in word 70:64 are valid

0 = the fields reported in word 70:64 are not valid

0

1 = the fields reported in word 58:54 are valid

0 = the fields reported in word 58:54 are not valid

54

XXXXh

X

Number of current cylinders

55

00XXh

X

Number of current heads

56

XXXXh

X

Number of current sector per track

57-58

XXXXh

X

Current capacity in sectors

59

0000h

F

V

V

15-9

Reserved

8

1 = Multiple sector setting is valid

7-0

xxh = Setting for number of sectors that shall be transferred per interrupt on R/W Multiple command

60-61

XXXXh

F

Total number of user addressable sectors

62

0000h

X

Obsolete

63

0007h

F

V

V

V

F

F

F

F

15-11

Reserved

10

1 = Multiword DMA mode 2 is selected

0 = Multiword DMA mode 2 is not selected

9

1 = Multiword DMA mode 1 is selected

0 = Multiword DMA mode 1 is not selected

8

1 = Multiword DMA mode 0 is selected

0 = Multiword DMA mode 0 is not selected

7-3

Reserved

2

1 = Multiword DMA mode 2 and below are supported

1

1 = Multiword DMA mode 1 and below are supported

0

1 = Multiword DMA mode 0 and below are supported