參數(shù)資料
型號(hào): MT8LLN22NCNE
元件分類: 總線控制器
英文描述: PCI BUS CONTROLLER, PBGA316
封裝: 27 X 27 MM, PLASTIC, BGA-316
文件頁數(shù): 118/145頁
文件大?。?/td> 2285K
代理商: MT8LLN22NCNE
Coppertail Product Specification
MT8LLN22NCNE.fm – Rev. 1, Pub. 2/02
74
2002, Micron Technology Inc.
PRELIMINARY
MT8LLN22NCNE
COPPERTAIL
DMA Channel Mode Register (DMACH_MODE)
DMA Clear Byte Pointer Register
1:0
Select channel request.
00: Channel 0/4
01: Channel 1/5
10: Channel 2/6
11: Channel 3/7
W/O
300
ADDRESS: 0Bh
SYMBOL: DMACH_MODE
ADDRESS: D6h
DMA1
DMA2
BITS
DESCRIPTION
PROPERTIES
RESET
7:6
DMA channel transfer mode
00: Demand mode
01: Single mode
10: Block mode
11: Cascade mode
LPC only supports single and demand modes.
W/O
00
5
Address Increment/Decrement Select. When set, the address will auto-
decrement. When clear, the address will auto-increment.
LPC DMA only supports increment mode.
W/O
0
4
Auto-initialize Enable. When set, auto-initialization is enabled. When
clear, auto-initialization is disabled. Auto-initialization restores the Base
Address and Count Registers to the Current Address and Count Registers
upon terminal count being reached.
W/O
0
3:2
DMA Transfer Type Select.
00: Verify transfer No I/O or Memory strobes generated.
01: Write transfer Data is transfered from I/O to Memory Devices.
10: Read transfer
Data is transfered from Memory to I/O Devices.
11: Reserved
In Cascade mode, this transfer type is irrelevant.
W/O
00
1:0
Select channel to be updated. This field selects the Channel the the
Channel Mode Register bits 7:2 will be written to.
00: Channel 0/4
01: Channel 1/5
10: Channel 2/6
11: Channel 3/7
W/O
00
ADDRESS: 0Ch
ADDRESS: D8h
DMA1
DMA2
BITS
DESCRIPTION
PROPERTIES
RESET
7:0
A write to this register will clear the byte pointer (set to least significant
byte) for 16-bit registers that are accessed by successive 8-bit reads/
writes.
W/O
00
DMA Write Single Mask (continued)
ADDRESS: 0Ah
SYMBOL: DMA_WRMSK
ADDRESS: D4h
DMA1
DMA2
BITS
DESCRIPTION
PROPERTIES
RESET
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