Seagate Barracuda ST340015A - Manual (Page 43)

Barracuda 5400.1 Product Manual, Rev. G 35
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
Bit Word 94
0–7 Current AAM setting
8–15 AAM Power on default