20.2 Embedded Characteristics
The Power Management Controller provides the following clocks:
- Processor Clock (CPU_CLK0) and Coprocessor (second processor) Clock (CPU_CLK1)
- Free-running Processor Clock (FCLK0) and Free-running Coprocessor Clock (FCLK1)
- Peripheral Clocks with independent ON/OFF control, provided to the peripherals. Each peripheral clock is inherited from one of the MCKx clocks.
- Programmable Clock Outputs (PCKx), selected from the clock generator outputs to drive the device PCKx pins.
- Generic Clock (GCLK) with controllable division and ON/OFF control, independent of MCKx and CPU_CLKx. Provided to selected peripherals. Refer to the table “Peripheral Identifiers” for more details on GCLK availability per peripheral.
The Power Management Controller also provides the following features on clocks:
- A Main crystal oscillator failure detector
- A 32.768 kHz crystal oscillator frequency monitor
- A frequency counter on Main crystal oscillator or Main RC oscillator
- An MCK0 failure detector