- r -
- receiver_enable
: spi_config
, usart_config
- reference_clock
: system_clock_source_dpll_config
- reference_divider
: system_clock_source_dpll_config
- reference_frequency
: system_clock_source_dpll_config
- run
: test_case
- run_in_standby
: system_clock_source_osc32k_config
, system_clock_source_osc48m_config
, system_clock_source_xosc32k_config
, system_clock_source_xosc_config
, spi_config
, system_voltage_references_config
, system_voltage_regulator_config
, usart_config
, system_clock_source_dpll_config
, system_gclk_gen_config