16.2 Features

  • Reset control
    • Reset the microcontroller and set it to an initial state according to the reset source
    • Multiple reset sources
      • Power reset sources: POR, BOD12, BOD33
      • User reset sources: External reset (RESET), Watchdog Timer reset, software reset
    • Reset status register for reading the reset source from the application code
  • Clock control
    • Controls CPU, AHB and APB system clocks
      • Multiple clock sources and division factor from GCLK
      • Clock prescaler with 1x to 128x division
    • Safe run-time clock switching from GCLK
    • Module-level clock gating through maskable peripheral clocks
  • Power management control
    • Sleep modes: IDLE, STANDBY
    • SleepWalking support on GCLK clocks