Take a look at the following for a good list of
TurboChannel cards (this is
most if not all of them).
http://www.netbsd.org/Ports/pmax/models.html
It may be most, but it's definitely not all of them, even if you restrict
yourself to DEC options. In addition to the DEC VMEbus adapter I mentioned
in another message, there was also an A.Open (I think that's the name; the
mutilation of I2C DEC used for keyboards and mice on the 5000/25) adapter.
I know DEC did some serial ports, although I don't think they sold them;
when I asked for info on doing serial port drivers for Ultrix, they
dredged up code for a TURBOchannel serial interface from the bowels
of some Ultrix lab. There was also some audio interface they used as
an example implemenation in some paper somewhere.
Roger Ivie
ivie(a)cc.usu.edu