1.2 Internal Calibrated RC Oscillator Overview

There are three factory calibrated internal RC oscillators on XMEGA, with nominal frequencies of 32.768 kHz, 2 MHz and 32 MHz, respectively. The 2 MHz and 32 MHz oscillators feature automatic run-time calibration. All factory calibrated oscillators can be used as the main system clock.

The following sections provide an overview of the internal calibrated RC oscillators available in the XMEGA microcontrollers.