On the KV11, can the pullup on the NMI input (PTA4) be disabled before POR through flash settings?

[timewing]

We currently have an LED driver assigned to the PTA4 pin, with NMI disabled, and the LED will come on until we can turn off the pullup when configuring the I/O port after RESET.  Looking for a faster way to accomplish this so that all LEDs assigned to output ports come on at the same time.

[Robin_Shen]

Hi Tim,

Although the NMI function on PTA4 can be disabled by clear the FTFA_FOPT[NMI_DIS]. The associated pin continues to default to NMI pin controls with internal pullup enabled. You still need to turn off the pullup when configuring the I/O port after RESET.

I am afraid you can't achieve that by software.
Have you ever considered add external pull-up resistors at all these pins?
Or don't use PTA4 pin.

Best Regards,

Robin