>I know that this is probably to much
> for the 16F84, but I want to use the
>16F84 first and then in time jump to
> the  68C11(analog inputs).

Why not start straight in with a 16F876 which already has analogue inputs,
and has an Incircuit Debugger capability, or better yet an 18F252 which has
a nicer architecture than the 16F series, along with analogue inputs and
still has a debugger capability, although you need to buy an ICD2 to deal
with this. This way you are not changing processor architecture in mid
stream.

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