16.5 PPS1WAY Bit

The PPS can be locked by setting the PPS1WAY bit of Configuration Word 2. When the PPS1WAY bit is set, the PPSLOCKED bit of the PPSLOCK register can be cleared and set only one time after a device Reset. Once the PPS registers are configured, user software sets the PPSLOCKED bit, preventing any further writes to the PPS registers. the PPS registers can be read at any time, regardless of the PPS1WAY or PPSLOCKED settings.

When the PPS1WAY bit is clear, the PPSLOCKED bit of the PPSLOCK register can be cleared and set multiple times during code execution, but requires the PPS lock/unlock sequence to be performed each time modifications to the PPS registers are made.