You have to multiply by 2.  The input frequency to the processor is 2x the
cpu speed

Stock is 4.9152 MHz.

So yes , but x2.. implication is a pretty fast cpld.  I think the xcr
family at 7ns may just do it.





On Sunday, November 1, 2020, RETRO Innovations <[email protected]>
wrote:

> On 11/1/2020 6:19 PM, Stephen Adolph wrote:
>
> It would be convenient to stick to multiples of 2.4576MHz so that it is an
> easy divisor to create the system clock of 2.4576 MHz.
>
> 14.7456 gives gives divisors of
>
> 6,4,3,2 for frequencies of:
> 2.4576 3.6864 4.9152 7.3728
>
> 73.728MHz gives divisors of 30,20,15,12,10 to get frequencies of:
> 2.4576 3.6864 4.9152 6.144 7.3728
>
> Both are available as oscillators.
>

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