w83c553f Winbond Electronics Corp America, w83c553f Datasheet - Page 90

• Manufacturer Part Number: w83c553f
• Description: System I/o Controller With Pci Arbiter
• Manufacturer: Winbond Electronics Corp America

W83C553F
Extended Mode Register (default = 0xh)
Type:
Bit Description:
DMA Page Registers (default = 00h)
Type:
Bit Description:
WINBOND SYSTEMS LABORATORY
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
Electrical Specifications
87