Alternating transition from 0 to 1 and 1 to 0 on trigger

Another CHOP logic issue.
I assume some combination of Trigger, Math, and perhaps Logic CHOPs but haven’t been able to get what I need.

On some trigger event I simply need to transition from 0 to 1 over a short interval
and then on the next trigger transition from 1 to 0, etc etc

A Count CHOP will get you there:

In this example clicking the button goes takes the count to 1, the next click takes the count to 0, the next click takes the count to 1.

The Count operates on an on / off idea, so every the input channel changes moves from off to on (the default config) your count increases.

If you had a constantly increasing value - you could use a limit CHOP to do something similar.