RE: CIA Serial Registers on C128
Date: 2002-02-27 08:11:42

Hallo Nick,

> If I connected the interface to the userport and used all 
> four signals I intend to, will the internal circuitry
> disconnect activity on CNT1/SP1 from the userport so that
> burstmode continues to work without having to
> physically unplug the device?

I have some troubles understanding your question.

If you take care that your device tristates these lines when not in
operation, theoretically everything should be fine regarding the C128 using
the IEC-bus.

On the other hand nothing may pull DATA and SQRIN Low otherwise CNT1 or SP1
could be blocked.
   / __|__
  / /  |_/     Groetjes, Ruud
  \ \__|_\


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