35.3.5 Sleep Mode Operation

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.