Word

Description

Value

 

 

 

48

Reserved

0000H

49

Standard Standby timer, IORDY supported and may be dis-

2F00H

 

abled

 

 

 

 

50

ATA-reserved

0000H

 

 

 

51

PIO data-transfer cycle timing mode

0200H

 

 

 

52

Retired

0200H

 

 

 

53

Words 54–58, 64–70 and 88 are valid

0007H

 

 

 

54

Number of current logical cylinders

xxxxH

 

 

 

55

Number of current logical heads

xxxxH

 

 

 

56

Number of current logical sectors per logical track

xxxxH

 

 

 

57–58

Current capacity in sectors

xxxxH

 

 

 

59

Number of sectors transferred during a Read Multiple or

xxxxH

 

Write Multiple command

 

 

 

 

60–61

Total number of user-addressable LBA sectors available

ST980210A = 156,501,488

 

(see Section 2.2 for related information)

ST980210AS = 156,501,488

 

ST960210A = 117,410,240

 

 

 

 

ST960210AS = 117,410,240

 

 

ST940210A = 78,340,160

 

 

ST940210AS = 78,340,160

 

 

ST920210AS = 41,021,800

 

 

 

62

Retired

0000H

63

Multiword DMA active and modes supported (see note fol-

xx07H

 

lowing this table)

 

 

 

 

64

Advanced PIO modes supported (modes 3 and 4 supported)

0003H

 

 

 

65

Minimum multiword DMA transfer cycle time per word (120

0078H

 

nsec)

 

 

 

 

66

Recommended multiword DMA transfer cycle time per word

0078H

 

(120 nsec)

 

 

 

 

67

Minimum PIO cycle time without IORDY flow control (240

00F0H

 

nsec)

 

 

 

 

68

Minimum PIO cycle time with IORDY flow control (120 nsec)

0078H

 

 

 

69–74

ATA-reserved

0000H

 

 

 

75

Queue depth

0000H

 

 

 

76–79

ATA-reserved

0000H

 

 

 

80

Major version number

003EH

 

 

 

81

Minor version number

0000H

 

 

 

82

Command sets supported

306BH

 

 

 

83

Command sets supported

4001H

 

 

 

84

Command sets support extension

4000H

 

 

 

85

Command sets enabled

30xxH

 

 

 

86

Command sets enabled

0001H

 

 

 

32

LD25 Series 5400.2 Product Manual, Rev. C

Page 38
Image 38
Seagate ST980210AS, ST960210AS, ST940210AS, ST920210AS manual XxxxH