6.5.5 Controlling PPS
The PPS features are controlled through two sets of SFRs: one to map peripheral inputs and another to map outputs. They are separately controlled; therefore, a particular peripheral’s input and output (if the peripheral has both) can be placed on any selectable function pin without constraint.
The association of a peripheral to a peripheral-selectable pin is handled in two different ways, depending on whether an input or output is mapped.