Seagate ST3750840ACE ユーザーズマニュアル

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DB35.3 Series PATA Product Manual, Rev. C
Note.
Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not supported
Note.
See the bit descriptions below for words 63, 88, and 93 of the Identify Drive data:
 
160–254
ATA-reserved
0000
H
255
Integrity word
xxA5
H
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.
5
Ultra DMA mode 5 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