Hello @MPEngineering
There is a newer SDK version for PN7642 available, please consider updating the SDK version you are using to the latest version available.
According to MCUXpresso IDE User Guide, Section 14.8, when an MCU powers up, many peripherals are unavailable because they are unpowered/not clocked. Attempting to access a peripheral in this state fails, and the peripheral simply displays them in red. Certain peripherals may be partially available, while unavailable sections are again displayed in red.
Regards,
Eduardo.