| From: | Jon Barker |
| Date: | 8 Jul 2001 at 08:13:07 |
| Subject: | Re: Yet more tower probs |
Hello Mario
On 07-Jul-01, you wrote:
M> Cao8-) Jon
M> On 06-Jul-01, you wrote:
M> ->> Yes, but I'm pretty sure the PPC boards have jumpers to set for
M> ->> kind of thing. At least my Cyberstorm does. :)
M> ->
M> -> So don't forget, or fried 060 will break your heart :-) How much is
M> -> a 060?
M> Bppc don't nave jumpers, i think that it handles 040/060 voltage
M> itself.
There are other important changes to be made to the board. Timing for
example. On the MC68040, outputs are driven off the falling edge of PCLK.
The MC68060 drives everything off the rising edge of CLK. There must be
some way of converting the boards from 040 to 060. I would suspect this is
done at manufacture, when the cpu to be used is known.
Regards
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