User`s guide

A.2 PCI Sparse I/O Space
Table A–7 (Cont.) SIO PCI-to-ISA Bridge Operating Register Address Space
Map
Offset Address Register
0C6 85.C000.18C0 DMA2 CH1 Base and Current Count
0C8 85.C000.1900 DMA2 CH2 Base and Current Address
0CA 85.C000.1940 DMA2 CH2 Base and Current Count
0CC 85.C000.1980 DMA2 CH3 Base and Current Address
0CE 85.C000.19C0 DMA2 CH3 Base and Current Count
0D0 85.C000.1A00 DMA2 Status(r) and Command(w)
0D2 85.C000.1A40 DMA2 Write Request
0D4 85.C000.1A80 DMA2 Write Single Mask Bit
0D6 85.C000.1AC0 DMA2 Write Mode
0D8 85.C000.1B00 DMA2 Clear Byte Pointer
0DA 85.C000.1B40 DMA2 Master Clear
0DC 85.C000.1B80 DMA2 Clear Mask
0DE 85.C000.1BC0 DMA2 Read/Write All Mask Register Bits
0F0 85.C000.1E00 Coprocessor Error
372 85.C000.6E40 Secondary Floppy Disk Digital Output
3F2 85.C000.7E40 Primary Floppy Disk Digital Output
40A 85.C000.8140 Scatter/Gather Interrupt Status
40B 85.C000.8160 DMA1 Extended Mode
410 85.C000.8200 CH0 Scatter/Gather Command
411 85.C000.8220 CH1 Scatter/Gather Command
412 85.C000.8240 CH2 Scatter/Gather Command
413 85.C000.8260 CH3 Scatter/Gather Command
415 85.C000.82A0 CH5 Scatter/Gather Command
416 85.C000.82C0 CH6 Scatter/Gather Command
417 85.C000.82E0 CH7 Scatter/Gather Command
418 85.C000.8300 CH0 Scatter/Gather Status
419 85.C000.8320 CH1 Scatter/Gather Status
41A 85.C000.8340 CH2 Scatter/Gather Status
(continued on next page)
I/O Space Address Maps A–11