6.2.2 Enabling Remap Pins
Each remap pin (RPx) must be enabled by disabling all higher priority pin functions on that pin before it can be used. Typically, all functions other than GPIO are considered higher priority than remap pins.
Each remap pin (RPx) must be enabled by disabling all higher priority pin functions on that pin before it can be used. Typically, all functions other than GPIO are considered higher priority than remap pins.