>how much effort is requierd and did you do anything to avoid collisions
>with KBD data with your design or just assume that users wont press keys
>and swipe at the same time.

I made the assumption.  You do have to monitor the shift state, though.  Some
computers don't like redundant shift release or shift press codes.

>What is required to auto-detect, check for reset pulse ?

I did it by counting transitions on the clock line with a 2.5mS timeout.  The XT
interface has a shorter word length.

- Mark Sullivan -