On Jul 26, 18:38, Tony Duell wrote:
> There seems to be a 6522 (on the BBC side) with the ports connected to
> the ports of the 8255. That seems to be on the Z80 bus.
I've not looked at one for a while, but that makes more sense. Presumably
the 6522 is mapped into the Beeb's 1MHz bus space.
> I've found a part-populated board marked 'Torch Computers 68000' which I
> believe to be from a Unicorn (it's not from a XXX or anything later). It
> has a 40 pin connector on it, which suggests it connects to the Tube as
> well.
Oh, then I stand corrected. The Tube is the only 40-pin connector on a
Beeb.
--
Pete Peter Turnbull
Network Manager
University of York
Received on Fri Jul 27 2001 - 02:08:02 BST