21.6.3.9 Enum system_clock_source
Clock sources available to the GCLK generators
| Enum value | Description |
|---|---|
|
SYSTEM_CLOCK_SOURCE_OSC16M |
Internal 16MHz RC oscillator |
|
SYSTEM_CLOCK_SOURCE_OSC32K |
Internal 32KHz RC oscillator |
|
SYSTEM_CLOCK_SOURCE_XOSC |
External oscillator |
|
SYSTEM_CLOCK_SOURCE_XOSC32K |
External 32KHz oscillator |
|
SYSTEM_CLOCK_SOURCE_DFLL |
Digital Frequency Locked Loop (DFLL) |
|
SYSTEM_CLOCK_SOURCE_ULP32K |
Internal Ultra Low Power 32KHz oscillator |
|
SYSTEM_CLOCK_SOURCE_GCLKIN |
Generator input pad |
|
SYSTEM_CLOCK_SOURCE_GCLKGEN1 |
Generic clock generator one output |
|
SYSTEM_CLOCK_SOURCE_DPLL |
Digital Phase Locked Loop (DPLL) |