Maxtor D540X-4K User Manual

Page 68

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ATA Bus Interface and ATA Commands

6-6

Maxtor D540X-4K 20.4/40.0/60.0/80.0 GB AT

49

15-14

13
12

11
10
9
8
7-0

Capabilities
Reserved for the IDENTIFY PACKET DEVICE
command.
Standby timer values are supported
Reserved for the IDENTIFY PACKET DEVICE
command.
IORDY supported
IORDY may be disabled
LBA supported
DMA supported.
Retired

0F00h

50

15
14
13-2
1
0

Capabilities
Shall be cleared to zero.
Shall be set to one.
Reserved.
Obsolete
Shall be set to one to indicate a device specific
Standby timer value minimum.

0
1
000h
0
0

51-52

Obsolete

0200h-
0200h

53

15-3
2
1
0

Reserved
the fields reported in word 88 are valid
the fields reported in words 64-70 are valid
the fields reported in words 54-58 are valid

0
1
1
1

54

Obsolete

3FFFh

55

Obsolete

0010h

56

Obsolete

0100h

57-58

Current capacity in Sectors

Variable

59

Multiple sector setting

0100h

60-61

Total number of user addressable sectors

Variable

62

Obsolete

0000h

63

Multiword DMA mode

0407h

64

Advanced PIO modes

0003h

65

Minimum Multiword DMA transfer cycle time

0078h

66

recommended Multiword DMA transfer cycle time

0078h

67

Minimum cycle time without flow control

0078h

68

Minimum cycle time with IORDY flow control

0078h

69-70

Reserved

Reserved

71-74

Reserved

Reserved

75

Maximum queue depth – 1

0000h

76-79

Reserved

Reserved

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