The Other wrote:
From a Google search on the DS80C320 chip: The
Dallas Semiconductor
DS80C320 is an 8051 based High-Speed Micro with 2 DPTRs, WDT, Two
Serial Ports, ...
From a Google search on the TL16C552FN chip, all that readily
appeared were prices and vendors.
<http://focus.ti.com/docs/prod/folders/print/tl16c552.html>
We don't know how these chips are connected to the ISA bus. I guess
it would be necessary to reverse engineer the Windows drivers.
Clemens