If the RUNSTDBY bit is ‘0’ in OPnCTRLA, OPn is shut off in
Standby Sleep mode, and its output driver is disabled. The op amp will release its override of
the I/O pin, and the behavior of the I/O pin can be controlled using standard GPIO
control.
If the RUNSTDBY bit is ‘1’ in OPnCTRLA, OPn remains operational
in Standby Sleep mode with its enable/disable behavior determined by the ALWAYSON and EVENTEN
bits in OPnCTRLA.