I need to use PTA4 as an GPIO input pin on a KL15 device. The pin can also be used for NMI_b. But I don't want to use the NMI_b signal (but it is the default setting, ALT7).
What do I need to think about?
Do I just need to configure PORTA_PCR4[MUX] = 1 (ALT1) and then also clear set FTFA_FOPT[NMI_DIS] = 0?
I see that the Processor expert doesn't clear the FTFA_FOPT[NMI_DIS] bit, it only set PORTA_PCR4[MUX] = 1. But then the NMI_b would be active for a short while after reset?