SEL=MAINCLKSELA
Main clock source select B
| SEL | Clock source for main clock source selector B. Selects the clock source for the main clock. 0 (MAINCLKSELA): MAINCLKSELA. Use the clock source selected in MAINCLKSELA register. 1 (SYSTEM_PLL_INPUT): System PLL input. 2 (SYSTEM_PLL_OUTPUT): System PLL output. 3 (RTC_OSC_OUTPUT): RTC osc output. RTC oscillator 32 kHz output. |
| RESERVED | Reserved |