Word

Description

Value

 

 

 

60–61

Total number of user-addressable LBA sectors available

0FFFFFFFh*

 

(see Section 2.2 for related information)

 

 

*Note: The maximum value allowed in this field is: 0FFFFFFFh

 

 

(268,435,455 sectors, 137 Gbytes). Drives with capacities over 137

 

 

Gbytes will have 0FFFFFFFh in this field and the actual number of user-

 

 

addressable LBAs specified in words 100-103. This is required for drives

 

 

that support the 48-bit addressing feature.

 

 

 

 

62

Retired

0000H

63

Multiword DMA active and modes supported (see note following this

xx07H

 

table)

 

 

 

 

64

Advanced PIO modes supported (modes 3 and 4 supported)

0003H

65

Minimum multiword DMA transfer cycle time per word (120 nsec)

0078H

66

Recommended multiword DMA transfer cycle time per word (120 nsec)

0078H

67

Minimum PIO cycle time without IORDY flow control (240 nsec)

00F0H

68

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

0078H

 

 

 

 

 

69–74

ATA-reserved

0000H

75

Queue depth

0000H

76

Serial ATA capabilities

xxxxH

77

Reserved for future Serial ATA definition

xxxxH

78

Serial ATA features supported

xxxxH

79

Serial ATA features enabled

xxxxH

80

Major version number

003EH

81

Minor version number

0000H

82

Command sets supported

364BH

83

Command sets supported

7C03H

84

Command sets support extension

4003H

85

Command sets enabled

30xxH

86

Command sets enabled

0001H

87

Command sets enable extension

4000H

88

Ultra DMA support and current mode (see note following this table)

xx3FH

89

Security erase time

0000H

90

Enhanced security erase time

0000H

92

Master password revision code

FFFEH

93

Hardware reset value

xxxxH

 

(see description following this table)

 

 

 

 

95–99

ATA-reserved

0000H

100–

Total number of user-addressable LBA sectors available (see Section 2.2

ST3400832NS = 781,422,768

103

for related information). These words are required for drives that support

ST3400632NS = 781,422,768

 

the 48-bit addressing feature. Maximum value: 0000FFFFFFFFFFFFh.

ST3250823NS = 488,397,168

 

 

ST3250623NS = 488,397,168

 

 

 

104–

ATA-reserved

0000H

127

 

 

 

 

 

26

NL35 Series SATA Product Manual, Rev. B

Page 32
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Seagate ST3250823NS, ST3250623NS, ST3400632NS, ST3400832NS manual Xx07H