Seagate ST9250412AS Momentus 7200 FDE.2 SATA Product Manual - Page 40

Description, Value

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Word 50 51 52 53 54 55 56 57-58 59 60-61 Description ATA-reserved PIO data-transfer cycle timing mode Retired Words 54-58, 64-70 and 88 are valid Number of current logical cylinders Number of current logical heads Number of current logical sectors per logical track Current capacity in sectors Number of sectors transferred during a Read Multiple or Write Multiple command Total number of user-addressable LBA sectors. This field contains a value that is one greater than the total number of user-addressable sectors. The maximum value that shall be placed in this field is 0FFFFFFh. The 0FFFFFFFh value applies to all capacities over 137 Gbytes (see Section 2.2 and 2.3 for related information). Value 4000H 0200H 0200H 0007H xxxxH xxxxH xxxxH xxxxH xxxxH ST9500421AS = 0FFFFFFFh ST9500426ASG = 0FFFFFFFh ST9500422AS = 0FFFFFFFh ST9500421AS = 0FFFFFFFh ST9320427ASG = 0FFFFFFFh ST9320426ASG = 0FFFFFFFh ST9320426AS = 0FFFFFFFh ST9250464ASG = 0FFFFFFFh ST9250414ASG = 0FFFFFFFh ST9250412AS = 0FFFFFFFh ST9250411AS = 0FFFFFFFh ST9160419ASG = 0FFFFFFFh ST9160418ASG = 0FFFFFFFh ST9160413AS = 0FFFFFFFh 62 63 64 65 66 67 68 69-74 75 76 77 78 Retired Multiword DMA active and modes supported (see note following this table) Advanced PIO modes supported (modes 3 and 4 supported) Minimum multiword DMA transfer cycle time per word (120 nsec) Recommended multiword DMA transfer cycle time per word (120 nsec) Minimum PIO cycle time without IORDY flow control (240 nsec) Minimum PIO cycle time with IORDY flow control (120 nsec) ATA-reserved Queue depth Serial ATA capabilities ATA-reserved Serial ATA features supported 0000H xx07H 0003H 0078H 0078H 0078H 0078H 0000H 001FH 0706H 0000H 0048H 34 Momentus 7200 FDE.2 SATA Product Manual, Rev. B

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34
Momentus 7200 FDE.2 SATA Product Manual, Rev. B
50
ATA-reserved
4000
H
51
PIO data-transfer cycle
timing mode
0200
H
52
Retired
0200
H
53
Words 54–58, 64–70 and 88 are valid
0007
H
54
Number of current logical
cylinders
xxxx
H
55
Number of current logical heads
xxxx
H
56
Number of current logical sectors per logical track
xxxx
H
57–58
Current capacity in sectors
xxxx
H
59
Number of sectors transferred during a Read Multiple or
Write Multiple command
xxxx
H
60–61
Total number of user-addressable LBA sectors. This field
contains a value that is one greater than the total number of
user-addressable sectors. The maximum value that shall be
placed in this field is 0FFFFFFh. The 0FFFFFFFh value
applies to all capacities over 137 Gbytes (see Section 2.2
and 2.3 for related information).
ST9500421AS
= 0FFFFFFFh
ST9500426ASG
= 0FFFFFFFh
ST9500422AS
= 0FFFFFFFh
ST9500421AS
= 0FFFFFFFh
ST9320427ASG
= 0FFFFFFFh
ST9320426ASG
= 0FFFFFFFh
ST9320426AS
= 0FFFFFFFh
ST9250464ASG
= 0FFFFFFFh
ST9250414ASG
= 0FFFFFFFh
ST9250412AS
= 0FFFFFFFh
ST9250411AS
= 0FFFFFFFh
ST9160419ASG
= 0FFFFFFFh
ST9160418ASG
= 0FFFFFFFh
ST9160413AS
= 0FFFFFFFh
62
Retired
0000
H
63
Multiword DMA active and modes supported
(see note following this table)
xx
07
H
64
Advanced PIO modes supported (modes 3 and 4 supported)
0003
H
65
Minimum multiword DMA transfer cycle time per word
(120 nsec)
0078
H
66
Recommended multiword DMA transfer cycle time per word
(120 nsec)
0078
H
67
Minimum PIO cycle time without IORDY flow control
(240 nsec)
0078
H
68
Minimum PIO cycle time with IORDY flow control (120 nsec)
0078
H
69–74
ATA-reserved
0000
H
75
Queue depth
001F
H
76
Serial ATA capabilities
0706
H
77
ATA-reserved
0000
H
78
Serial ATA features supported
0048
H
Word
Description
Value