Espressif ESP32 Technical Reference Manual page 718

31 Low-Power Management (RTC_CNTL)
Register 31.23. RTC_CNTL_CPU_PERIOD_CONF_REG (0x0068)
31 30 29 28
0 0 0 0 0 0 0
RTC_CNTL_RTC_CPUPERIOD_SEL CPU period selection. (R/W)
RTC_CNTL_CPUSEL_CONF CPU selection option. (R/W)
Espressif Systems
0 0 0 0 0 0 0 0
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0 0 0 0 0 0 0 0
718
0 0 0 0 0 0 0 0
ESP32 TRM (Version 5.2)
0
0 Reset