Hello!
I am using S32K312 MCU.
Is there any guides from NXP about Unused Pin settings?
(ex. Pin Disable or Output Low etc...)
yes, we do have such guides and you can find the application note from the link below.
S32K3 MCUs for General Purpose – Hardware Design Package
you can take a look at the article:
"S32K3xx-Hardware Design Guidelines.pdf"->the chapter 7:Unused pins.