RE: 6510 CPU extensions

From: Gideon Zweijtzer (
Date: 2002-04-22 11:57:35

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    John wrote:
    |Your implementation won't be using dynamic logic, so there's no need for
    No, it won't. I can run it at 1 Hz, if I want.
    |Now my memory fails me... the 6502 outputs the clock on a couple of pins,
    |to feed to other devices that might need it.  Does the 6510 do the same?
    The input clock is called PHI1, and the output clock PHI2. PHI2 lags about
    30 ns compared to PHI1.
    |It might be polite to generate a clock, but since you've had this running
    |in a real C64, it looks like it's not used anyway.
    Well, PHI2 is certainly used!!! AFAIK all peripherals use this clock.
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