34.1 OPA Module Control
The OPA module is enabled by setting the EN bit of the corresponding
operational amplifier Configuration register. Once enabled, the
OPA module forces the output driver of the output pin (OPAxOUT)
into tri-state. Forcing the output pin into tri-state prevents
contention between the digital PORT driver of the pin and the
output of the OPA during operation. The Software Output Control
(SOC) bits are used to select
the OPA mode of operation when hardware controlled override is
not being used (OREN = 0).