參數(shù)資料
型號: W83C554F
英文描述: W83C554F Highly Integrated System I/O Controller for Power PC TM (South Bridge) & UltraDMA/33 IDE Controller QFP 208
中文描述: W83C554F高度集成的系統(tǒng)的I / O控制器的Power PC商標(biāo)(南橋)
文件頁數(shù): 86/159頁
文件大?。?/td> 3991K
代理商: W83C554F
W83C553F
Electrical Specifications
WINBOND SYSTEMS LABORATORY
83
DMA Controller Mode Register
Type:
Bit Description
:
Bits [7:6]:
Write only
Transfer Mode.
Bit 7
0
0
1
1
Decrement Address. When set to "1", address pointer is decremented after each transfer.
Default is incrementing address.
Auto initialize Enable.
Transfer Type.
Bit 3
Bit 2
0
0
=
Verify
0
1
=
Write
1
0
=
Read
1
1
=
Illegal Type
Channel Select.
Bit 6
0
1
0
1
=
=
=
=
Demand Mode
Single Mode
Block Mode
Cascade Mode
Bit 5:
Bit 4:
Bits [3:2]:
Bits [1:0]:
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