2.5.2 RUNSTDBY is Not Functional When Using External Clock Sources

When using any of the External Clock Sources, the related Run Standby (RUNSTDBY) bit, found in the XOSC32KCTRLA register, will not force the oscillator source to stay on during sleep modes.

Work Around

Enable a peripheral, with the external oscillator as the clock source, to keep the clock source active during sleep modes.

Affected Silicon Revisions

Rev. A4 Rev. A5 Rev. B0
X - -