On Sat, 18 May 2002, der Mouse wrote:
> - 40-pin DIP from NEC, labeled "D7210C" and "9536XD001"



> Looks like the NEC 7210 is it, then. :-)  Now, to figure out how it's
> glued to the SBus...and find 7210 docs.

7210 docs are available online.  Actually, IOtech has the datasheet for
their IOT7210 online so you can get it there.  I started hacking on a 7210
driver once, but never reached a critical mass of understanding how device
drivers actually work :(  Mine are on ISA cards.

-dan