PC CARD ADAPTER USER GUIDE

Configuration Options B-3

The MMIO address selected must not be assigned for use by

any other adapter or option and cannot be the same as the

RAM address for this adapter. If a system resource conﬂict

continues, you may have to change the settings of other

adapters or options that are in your computer.

Shared RAM Page Size and Address Range

There are 30 possible blocks of memory that can be assigned

for accessing the RAM located on the 3C689 adapter. The

factory default RAM size is 16 KB and the address location is

D0000–D3FFF.

RAM paging allows the software to access all 64 KB of RAM

on the adapter one page (16 KB) at a time, while using only

16 KB of computer memory space. RAM paging is available

for all 16 KB address ranges.

If a conﬂict continues, you may have to change the settings

of other adapters or options that are in your computer. The

30 RAM address ranges are as follows, with the default in

bold:

8 KB / C0000–C1FFF 8 KB / DE000–DFFFF

8 KB / C2000–C3FFF 16 KB / C0000–C3FFF

8 KB / C4000–C5FFF 16 KB / C4000–C7FFF

8 KB / C6000–C7FFF 16 KB / C8000–CBFFF

8 KB / C8000–C9FFF 16 KB / CC000–CFFFF

8 KB / CA000–CBFFF 16 KB / D0000–D3FFF

8 KB / CC000–CDFFF 16 KB / D4000–D7FFF

8 KB / CE000–CFFFF 16 KB / D8000–DBFFF

8 KB / D0000–D1FFF 16 KB / DC000–DFFFF

8 KB / D2000–D3FFF 32 KB / C0000–C7FFF

8 KB / D4000–D5FFF 32 KB / C8000–CFFFF

8 KB / D6000–D7FFF 32 KB / D0000–D7FFF

8 KB / D8000–D9FFF 32 KB / D8000–DFFFF

8 KB / DA000–DBFFF 64 KB / C0000–CFFFF

8 KB / DC000–DDFFF 64 KB / D0000–DFFFF