AN4660 Datasheet, PDF (17/27 Pages) STMicroelectronics – Designers of STM32 microcontroller applications must have the possibility

AN4660
Peripheral migration
2.9
PWR
Table 14 presents the PWR controller differences between STM32F42xxx/F43xxx and
STM32F74xxx/F75xxx.
Table 14. PWR differences between STM32F42xxx/F43xxx and STM32F74xxx/F75xxx
PWR
STM32F42xxx/F43xxx
STM32F74xxx/F75xxx
Power supplies
– Independent USB transceivers
supply:
NA
VDDUSB: range is from 3.0 V to 3.6 V
and is completely independent from VDD
or VDDA
Standby mode
wakeup sources
– WKUP pin PA0 on rising edge
– RTC event (RTC ALARM,
Tamper event,Time stamp event)
– IWDG reset
– External reset in NRST pin
– WKUP pin with configurable polarity on
rising or falling edge:
– PA0
– PA2
– PC1
– PC13
– PI8
– PI11
– RTC event (RTC ALARM, tamper event,
time stamp event)
– IWDG reset
– External reset in NRST pin
PWR_CR
PWR_CSR
PWR_CR1
PWR_CSR1
Power control
registers
PWR_CR2
PWR_CSR2
Comment :
– PWR_CR2:
NA
Used to configure the wakeup pin polarity,
or to clear the wakeup pins flags.
– PWR_CSR2:
Used either to enable the wakeup pins or
used to detect an event on the wakeup pin
DocID027558 Rev 2
17/27
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