18.1 Features

• All Clocks and Clock Sources Are Automatically Enabled When Requested by Peripherals
• Internal Oscillators:
  • Up to 20 MHz Internal High-Frequency Oscillator (OSCHF)
  • 32.768 kHz Ultra-Low Power Oscillator (OSC32K)
  • Up to 48 MHz Phase-Locked Loop (PLL), with 2x or 3x clock multiplier
  • 600 kHz Internal Oscillator (OSC600K)
• Auto-Tuning for Improved Internal Oscillator Accuracy
• External Clock Options:
  • 32.768 kHz Crystal Oscillator (XOSC32K)
  • High-Frequency Crystal Oscillator (XOSCHF)
  • External clock
• Main Clock Features:
  • Safe run-time switching
  • Prescaler with a division factor ranging from 1 to 64
  • Main clock output to I/O pin:
    • Selection of undivided output or output divided by 32
  • Two Clock Failure Detection mechanisms with automatic clock switching
  • Two Clock Frequency Measurement mechanisms