Seagate ST94019A Momentus 4200 Product Manual - Page 34

Description if bit is set to 1, Word 63, Word 88, Word 93, Description, Value

Page 34 highlights

Word 129- 159 160- 254 255 Description Seagate-reserved ATA-reserved Integrity word Value xxxxH 0000H xxA5H Note. See the bit descriptions below for words 63, 88, 93 and 94 of the Identify Drive data. Description (if bit is set to 1) Bit Word 63 0 Multiword DMA mode 0 is supported. 1 Multiword DMA mode 1 is supported. 2 Multiword DMA mode 2 is supported. 8 Multiword DMA mode 0 is currently active. 9 Multiword DMA mode 1 is currently active. 10 Multiword DMA mode 2 is currently active. Bit Word 88 0 Ultra DMA mode 0 is supported. 1 Ultra DMA mode 1 is supported. 2 Ultra DMA mode 2 is supported. 3 Ultra DMA mode 3 is supported. 4 Ultra DMA mode 4 is supported. 8 Ultra DMA mode 0 is currently active. 9 Ultra DMA mode 1 is currently active. 10 Ultra DMA mode 2 is currently active. 11 Ultra DMA mode 3 is currently active. 12 Ultra DMA mode 4 is currently active. 13 Ultra DMA mode 5 is currently active. Bit Word 93 13 1 = 80-conductor cable detected, CBLID above VIH 0 = 40-conductor cable detected, CBLID below VIL 24 Momentus 42 Product Manual, Rev. A

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24
Momentus 42 Product Manual, Rev. A
129–
159
Seagate-reserved
xxxx
H
160–
254
ATA-reserved
0000
H
255
Integrity word
xxA5
H
Note.
See the bit descriptions below for words 63, 88, 93 and 94 of the Identify Drive data.
Description (if bit is set to 1)
Bit
Word 63
0
Multiword DMA mode 0 is supported.
1
Multiword DMA mode 1 is supported.
2
Multiword DMA mode 2 is supported.
8
Multiword DMA mode 0 is currently active.
9
Multiword DMA mode 1 is currently active.
10
Multiword DMA mode 2 is currently active.
Bit
Word 88
0
Ultra DMA mode 0 is supported.
1
Ultra DMA mode 1 is supported.
2
Ultra DMA mode 2 is supported.
3
Ultra DMA mode 3 is supported.
4
Ultra DMA mode 4 is supported.
8
Ultra DMA mode 0 is currently active.
9
Ultra DMA mode 1 is currently active.
10
Ultra DMA mode 2 is currently active.
11
Ultra DMA mode 3 is currently active.
12
Ultra DMA mode 4 is currently active.
13
Ultra DMA mode 5 is currently active.
Bit
Word 93
13
1 = 80-conductor cable detected, CBLID above V
IH
0 = 40-conductor cable detected, CBLID below V
IL
Word
Description
Value