ST STM32F405 Reference Manual page 140

Power controller (PWR)
c)
d)
e)
•
When using RTC wakeup to wake up the device from the low-power modes:
a)
b)
c)
d)
e)
• When using RTC tamper to wake up the device from the low-power modes:
a)
b)
c)
d)
e)
• When using RTC time stamp to wake up the device from the low-power modes:
a)
b)
c)
d)
e)
140/1749
Clear the PWR Wakeup (WUF) flag
Enable the RTC alarm interrupt
Re-enter the low-power mode
Disable the RTC Wakeup interrupt (WUTIE bit in the RTC_CR register)
Clear the RTC Wakeup (WUTF) flag
Clear the PWR Wakeup (WUF) flag
Enable the RTC Wakeup interrupt
Re-enter the low-power mode
Disable the RTC tamper interrupt (TAMPIE bit in the RTC_TAFCR register)
Clear the Tamper (TAMP1F/TSF) flag
Clear the PWR Wakeup (WUF) flag
Enable the RTC tamper interrupt
Re-enter the low-power mode
Disable the RTC time stamp interrupt (TSIE bit in RTC_CR)
Clear the RTC time stamp (TSF) flag
Clear the PWR Wakeup (WUF) flag
Enable the RTC TimeStamp interrupt
Re-enter the low-power mode
RM0090 Rev 18
RM0090