DISK DRIVE OPERATION

 

 

 

 

 

 

 

 

 

Table 6-6IDENTIFY DEVICE information (continued)

 

 

 

Word

Content

Description

 

 

 

 

 

 

 

Command set/feature enabled. . (The default manufacturing setting is as below)

 

 

 

15-5

Reserved

 

 

 

 

 

86

0001h

4

(=0) Removable Media Status Notification feature set enabled

 

 

 

3

(=0) Advanced Power Management feature set enabled

 

 

 

 

 

2

(=0) CFA feature set enabled

 

 

 

 

 

 

1

(=0) READ/WRITE DMA QUEUED command supported

 

 

 

 

 

0

(=0) DOWNLOAD MICROCODE command supported

 

 

 

87

4000h

Command set/feature default.

 

 

 

 

15-14

Word 87 is valid

 

 

 

 

 

 

13-0

Reserved

 

 

 

 

 

 

 

Ultra DMA transfer modes

 

 

 

 

 

 

15-8 (=0Xh) Current active Ultra DMA transfer mode

 

 

 

 

 

 

15-13

Reserved (=0)

 

 

 

 

 

 

 

12

Ultra DMA mode 4

1= Active

0= Not Active

 

 

 

 

11

Ultra DMA mode 3

1= Active

0= Not Active

 

 

 

 

10

Ultra DMA mode 2

1= Active

0= Not Active

 

88

001Fh

 

9

Ultra DMA mode 1

1= Active

0= Not Active

 

 

8

Ultra DMA mode 0

1= Active

0= Not Active

 

 

 

7-0

(1Fh) Ultra DMA transfer mode supported

 

 

 

 

 

 

7-5

Reserved (=0)

 

 

 

 

 

 

 

4

Ultra DMA mode 4

1= Support

 

 

 

 

 

 

3

Ultra DMA mode 3

1= Support

 

 

 

 

 

 

2

Ultra DMA mode 2

1= Support

 

 

 

 

 

 

1

Ultra DMA mode 1

1= Support

 

 

 

 

 

 

0

Ultra DMA mode 0

1= Support

 

 

 

89-92

0000h

Reserved

 

 

 

 

 

 

93

4101h

Hardware reset result. The contents of bits 12-0 of this word shall change only during the

 

 

 

execution of a hardware reset.

 

 

 

 

 

 

15-14

(=01) Word 93 is valid

 

 

 

 

 

 

13

1=device detected CBLID- above ViH,

0=device detected CBLID- below ViL

 

 

 

12-9

(=0) Reserved

 

 

 

 

 

 

8

(=1) Shall be set to one.

 

 

 

 

 

 

7-1

(=0) Reserved

 

 

 

 

 

 

0

(=1) Shall be set to one.

 

 

 

 

94

8000h

Command automatic acoustic management value.

 

 

 

 

15-8

(80h) Vendor’s recommended acoustic management value.

 

 

 

 

 

7-0

(00h) Current automatic acoustic management value.

 

 

 

95-128

0000h

Reserved

 

 

 

 

 

 

129-159

0000h

Vendor specific

 

 

 

 

 

160-255

0000h

Reserved

 

 

 

 

 

SpinPoint V40 Product Manual

61

Page 69
Image 69
Samsung 3.5 hard disk drives, spinpoint v40 manual 95-128 0000h Reserved 129-159 Vendor specific 160-255