DISK DRIVE OPERATION

 

 

 

 

 

 

 

 

Table 6-6IDENTIFY DEVICE information (continued)

 

Word

Content

Description

 

 

 

Capabilities

 

 

 

15-14

Reserved

 

 

 

13

1=Standby timer values as specified in this standard are supported

 

 

 

 

0=Standby timer values shall be managed by the device

 

49

0B00h

12

Reserved

 

11

1=IORDY supported

 

 

 

 

0=IORDY may be supported

 

 

 

10

1=IORDY may be disabled

 

 

 

9

Shall be set to one.

 

 

 

8

Shall be set to one.

 

 

 

7-0

Retired

 

50

0000h

Reserved

 

 

 

51

0200h

PIO data transfer cycle timing mode

 

52

0200h

DMA data transfer cycle timing mode

 

 

 

15-3

Reserved

 

53

0007h

2

1=the fields reported in word 88 are valid

 

1

1=the fields reported in words 64-70 are valid

 

 

 

 

 

 

0

1=the fields reported in words 54-58 are valid

 

54

XXXXh

Number of current logical cylinders

 

55

XXXXh

Number of current logical heads

 

56

XXXXh

Number of current logical sectors per track

 

57-58

XXXXh

Current capacity in sectors

 

Word 57 specifies the low world of the capacity

 

 

 

 

 

 

Current Multiple setting. Bit assignments

 

59

0XXXh

15-9

Reserved

 

8

1=Multiple sector setting is valid

 

 

 

 

 

 

7-0

xxh=Current setting for number of sectors

 

60-61

XXXXh

Total number of user addressable sectors (LBA mode only)

 

Word 57 specifies the low world of the capacity

 

 

 

 

62

0000h

Reserved

 

 

 

63

XX07h

Multiword DMA Transfer Capability

 

15-8

Multiword DMA transfer mode active

 

 

 

7-0

(=7) Multiword DMA transfer modes supported (support mode 0 , 1 and 2)

 

64

0003h

Flow Control PIO Transfer modes supported

 

15-8

Reserved

 

 

 

7-0

(=3) Advanced PIO modes supported (‘11b’ = PIO Mode 3 and 4 Supported)

 

65

0078h

Minimum Multiword DMA transfer cycle time per word

 

15-0

Cycle time in nanoseconds (120ns, 16.6MB/S)

 

 

 

 

66

0078h

Manufacturer’s recommended Multiword DMA transfer cycle time

 

15-0

Cycle time in nanoseconds (120ns, 16.6MB/S)

 

 

 

 

67

0078h

Minimum PIO transfer cycle time without flow control

 

15-0

Cycle time in nanoseconds (120ns, 16.6MB/S)

 

 

 

 

68

0078h

Minimum PIO transfer cycle time with IORDY flow control

 

15-0

Cycle time in nanoseconds (120ns, 16.6MB/S)

 

 

 

 

69-79

0000h

Reserved

 

 

 

80

001Eh

Major version number

 

15-0

(=1Eh) ATA-1, ATA-2, ATA-3 and ATA/ATAPI-4

 

 

 

 

81

0017h

Minor version number

 

15-0

(=17h) ATA/ATAPI-4 X3T13 1153D revision 17

 

 

 

SpinPoint V40 Product Manual

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Samsung 3.5 hard disk drives, spinpoint v40 manual Capabilities