21.6.3.13 Enum system_clock_source_dpll_reference_clock

Table 21-69. Members
Enum valueDescription

SYSTEM_CLOCK_SOURCE_DPLL_REFERENCE_CLOCK_XOSC32K

Select XOSC32K as clock reference

SYSTEM_CLOCK_SOURCE_DPLL_REFERENCE_CLOCK_XOSC

Select XOSC as clock reference

SYSTEM_CLOCK_SOURCE_DPLL_REFERENCE_CLOCK_GCLK

Select GCLK as clock reference