w83c554f Winbond Electronics Corp America, w83c554f Datasheet - Page 88
w83c554f
Manufacturer Part Number
w83c554f
Description
System I/o Controller With Pci Arbiter & Ultradma/33 Ide Controller
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83C554F.pdf
(156 pages)
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Part Number:
W83C554F
Manufacturer:
Winbond
Quantity:
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W83C554F
Extended Mode Register (default = 0xh)
Type:
Bit Description:
DMA Page Registers (default = 00h)
Type:
Bit Description:
WINBOND ELECTRONICS CORP. AMERICA
Bits [7:6]:
Bits [5:4]:
Bits [3:2]:
Bits [1:0]
Bits [7:0]:
Write only
Reserved.
Timing.
Reserved.
DMAC[1:0] Channel Select.
Read/Write
AD[31:24].
Bit 5
0
0
1
1
Bit 1
0
0
1
1
Bit 4
Bit 0
0
1
0
1
0
1
0
1
Compatible Timing
A
B
F
Channel Select
DMAC1
0
1
2
3
Note: IOR# is 1 BCLK wide for IO to Memory DMA
Note: IOW# is 3-5BCLK wide for Memory to IO DMA
Channel Select
DMAC2
Reserved
5
6
7
Register Information
86
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