Harold M Hallikainen wrote:

>  You can violate rule number 1 if you're careful and allow enough time
> for the pin to settle.

  Ah!  But how much time does a 0.1µF capacitor take to settle?

>  Also, new parts, such as the 18c452 have another register called
> lata, latb, latc, latd, etc. that are actually the output LATCHES.

  Just like an Atmel AVR eh?
-- 
  Cheers,
        Paul B.