rtc configure register
SW_CPU_INT | rtc software interrupt to main cpu |
SLP_REJECT_CAUSE_CLR | clear rtc sleep reject cause |
APB2RTC_BRIDGE_SEL | 1: APB to RTC using bridge |
SDIO_ACTIVE_IND | SDIO active indication |
SLP_WAKEUP | leep wakeup bit |
SLP_REJECT | leep reject bit |
SLEEP_EN | sleep enable bit |