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參數(shù)資料
| 型號(hào)： | INTEL82801 |
| 廠商： | Intel Corp. |
| 英文描述： | 82801AB (ICH0) I/O Controller Hub |
| 中文描述： | 82801AB（ICH0）I / O控制器集線器 |
| 文件頁(yè)數(shù)： | 280/414頁(yè) |
| 文件大?。?/td> | 2140K |
| 代理商： | INTEL82801 |
IDE Controller Registers (D31:F1)
9-8
82801AA and 82801AB Datasheet
9.1.16
SDMA_CNT—Synchronous DMA Control Register
(IDE—D31:F1)
Address Offset:
Default Value:
48h
00h
Attribute:
Size:
R/W
8 bits
Bit
Description
7:4
Reserved.
3
Secondary Drive 1 Synchronous DMA Mode Enable (SSDE1).
1 = Enable Synchronous DMA mode for secondary channel drive 1
0 = Disable (default)
2
Secondary Drive 0 Synchronous DMA Mode Enable (SSDE0).
1 = Enable Synchronous DMA mode for secondary drive 0
0 = Disable (default).
1
Primary Drive 1 Synchronous DMA Mode Enable (PSDE1).
1 = Enable Synchronous DMA mode for primary channel drive 1
0 = Disable (default)
0
Primary Drive 0 Synchronous DMA Mode Enable (PSDE0).
1 = Enable Synchronous DMA mode for primary channel drive 0
0 = Disable (default)
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