W83C553F Datasheet, PDF (86/159 Pages) Winbond – SYSTEM I/O CONTROLLER WITH PCI ARBITER

W83C553F
Electrical Specifications
DMA Controller Mode Register
Type:
Write only
Bit Description:
Bits [7:6]:
Bit 5:
Bit 4:
Bits [3:2]:
Bits [1:0]:
Transfer Mode.
Bit 7 Bit 6
0
0=
0
1=
1
0=
1
1=
Demand Mode
Single Mode
Block Mode
Cascade Mode
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=
0
1=
1
0=
1
1=
Verify
Write
Read
Illegal Type
Channel Select.
WINBOND SYSTEMS LABORATORY
83