Well, on the
CompuServe board, there is a 68B09 which is (I believe) an
8MHz version of the 6809.
Hmm... I would have thought that it was a 2MHz part, but some googling
does show the B variant clocked at 8MHz. If that's the case, I wonder
if it's possible to overclock Henk's "Real Console".
This depends on how you measure the clock rate :-). Motorola called it a
2MHz device, because that's the frequency of the 2 main clocks -- E and
Q. But the intenral clock generator takes a crystal of 4 times that
frequency, so an 8MHz crystal for the maximum rated speed.
-tony