Re: 10 mhz 6502's...

[Stephen Shaw <xstephenx@apple2.org.za>]

On Wed, 29 Aug 2001 23:42:00 -0300, Tony Cianfaglione wrote:

>
> I was reading a page at: www.lowendmac.com on the Mac IIfx and it
> mentioned something about 2 - 10 mhz 6502 chips that were to be used in
> the IIfx for other things and take the pressure off the main processor.
>
> My question is were the chips made and what would happen if you plugged
> one into a IIc or IIe?  Would it simulate a zipchip or would nothing at
> all happen?
>
> Intriguing!

You could "underclock" them by running them at 1 MHz but the Apple II wouldn't
run any quicker. And, no, you can't change the crystal oscillator as (if I
remember correctly) the Apple II buss speed (the speed at which the slots run)
was linked to the processor speed and some cards (like the Z80 CPM cards) were
slot speed dependant.


-- 
You mean 15" sparks are supposed to come out of this thing?