Maxtor VL 17 manual 15-8 = PIO data transfer mode

Models: VL 17

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INTERFACECOMMANDS

WORD

CONTENT DESCRIPTION

50

Reserved

51

15-8 = PIO data transfer mode

 

7-0 = not used

 

 

52

15-8 = DMA data transfer mode

 

 

 

7-0 = not used

 

 

53

15 = reserved

 

2, 1 = the fields supported in words 88 are valid, 0 = the fields supported in words 88 are not valid

 

1, 1 = the fields reports in words 64-70 are valid, 0 = the fields reports in words 64-70 are not valid

 

0, 1 = the fields reports in words 54-58 are valid, 0 = the fields reports in words 54-58 are not valid

54

Number of current logical cylinders

55

Number of current logical heads

56

Number of logical sectors per track

57 - 58

Current capacity in sectors

59

15-9 = reserved

 

8, 1 = multiple sector setting is valid

 

 

 

7-0xxh = current setting for number of sectors that can per transferred per interrupt on Read/Write Multiple

 

command

 

 

60 - 61

Total number of user addressable sectors (LBA mode only)

 

 

62

Reserved

 

 

63

15-8 = Multi-word DMA transfer mode active

 

 

 

7-0 = Multi=word DMA transfer modes supported

 

 

64

15-8 = reserved

 

 

 

7-0 = advanced PIO transfer modes supported

 

 

65

Minimum multi-word DMA transfer cycle time (15-0 = cycle time in nanoseconds)

66

Manufacturer's recommeded multi-word DMA transfer cycle time (15-0 = cycle time in nanoseconds)

67

Minimum PIO transfer cycle time without flow control (15-0 = cycle time in nanoseconds)

68

Minimum PIO transfer cycle time with IORDY flow control (15-0 = cycle time in nanoseconds)

69-79

Reserved

80

15-5 = reserved

 

4, 1 = supports ATA-4

 

3, 1 = supports ATA-3

 

2, 1 = supports ATA-2

 

 

 

1, 1 = supports ATA-1

 

0, reserved

81

Minor version number

 

 

82

Command set supported. If words 82 and 83 = 0000h or FFFFh command set notification not supported.

 

 

 

15, 1 = supports the Identify Device DMA command

 

 

 

14, 1 = supports the NOP command

 

 

 

13, 1 = supports the Write Buffer command

 

 

 

12, 1 = supports the Read Buffer command

 

 

 

11, 1 = supports the Read Buffer command

 

 

 

10, 1 = supports Host-Protected Area feature set

 

 

 

9, 1 = supports the Device Reset command

 

8, 1 = supports Service Interupt

 

7, 1 = supports Release Interupt

 

6, 1 = supports Look Ahead

 

5, 1 = supports Write Cache

 

4, 1 = supports the Packet command feature set

 

3, 1 = supports the Power Management feature command

 

 

 

2, 1 = supports the Removable feature command

 

 

 

1, 1 = supports the Security featurecommand

 

 

 

0, 1 = supports the SMART feature set

 

 

7 – 10

Page 58
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Maxtor VL 17 manual 15-8 = PIO data transfer mode