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Re: Z80 CPU Speeds? - Upgrading
In article <3D950B7F.3090404@noneofyourbusiness.com>,
Exegete <millers@noneofyourbusiness.com> wrote:
>
> Most computers have a number of other things that they do that also run
> on the same clock. Changing the clock means that those other things no
> longer work, like reading, writing, or formatting a disk for instance.
Sorry, Roy. I was not specific enough. I have a PCPI Appli-card with a 6
MHz Z80B. On board the Appli-card is a 12 MHz oscillator. This is what I
was thinking of changing. I did not mean the oscillator on the Apple IIe
motherboard.
The PCPI Appli-card has its own 64k RAM bank, so the only interactions
between the card and the Apple IIe motheboard are I/O calls (I think).
Brian