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External NMI from a GPIO

Hi,

I want to use the PB7_GPIO15 pin as an external NMI source on my F28M36 microcontroller. My question is that with what type of signal can the NMI interrupt be generated? It might be trivial that the interrupt is generated in case of a rising edge but I want to get a confirmation on this.

Is this pin by default a GPIO after reset and the NMI functionality should be configured.

Thanks in advance!


Best Regards,
Tamas