> Well, Colin PIggot tried it with an 8MHz Z80C and the ASIC /did not/ want > to know. The bus, it seems, has to be at 6MHz... > > Simon Cooke
Yeap! With the 8MHz clock and 8MHz CPU (Z84C008), nothing at all happened, Using a clock doubler with the ASIC's clock output and feeding this into the CPU worked *slightly*, ie a clock approx 12MHz, in phase with the ASIC. About half the time, the memory would clear and the startup message would pop up, then you could go into basic, then it would crash! (The startup took about 20% less time than with the original 6MHz clock!) Colin Piggot
