13.12 Secondary Oscillator

The Secondary Oscillator (SOSC) is a low-power 32.768 kHz crystal oscillator that provides accurate time keeping.

The Secondary Oscillator has the following features:

  • 32.768 kHz operation
  • Provides system clock output
  • Provided to CRU or LPCLKGEN on request
  • Can be disabled to reduce power
  • Ultra-low power driver
  • No calibration is required