Re: 264 series questions
Date: 1999-10-06 23:08:02

Hallo Nicholas,

> ..... But the CPU also doesn't have a Phi2 output, just like the 8501. Who 
knows if this was done to save a pin for an extra port bit .......

Just FYI, I hope you remembered that I succeeded in replacing the 6510 of the 
C64 and the 6502 of several CBMs/PETs/VIC20 with a 65SC816. This uP hasn't a 
PHI2 either. I created this signal by delaying the PH0 signals thru two 74F04 
gates. I know by experience that this delay is essential because a Atom Acorn 
refused to operate at all without this delay. But to be honest, I never tried 
the circuit on a C= without this delay.

Groetjes, Ruud

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