3.2 Clock System

AVR XMEGA’s clock system allows flexible change of frequency. Dynamic clock switching allows the embedded designer to tune performance and power consumption to fit the application. The internal PLL and prescaler can be used to scale the clock sources dynamically up or down to further match application requirements.

With a built-in external oscillator failure detection and internal RC oscillator with ±1% accuracy over temperature and voltage, XMEGA AU MCUs offer the safest and most reliable and flexible clock system.