GPIO and ERU

Hi All,

Is there a way to connect GPIO pins to peripherals without making use of the ERU?

What is the fastest one can respond to a GPIO pin input change, by using interrupts? The best number I got so far is 1.7us making use of optimization level 3. Any suggestions?

I find the ERU very limiting in that you can only have a maximum of 4 events generators being created from a maximum of 8 inputs in the case of the XMC1300.

Regards
Enigma