What do Events from EXTI controller use for?

[FAlle.1]

In the STM32F070, EXTI0_15 come from GPIOs, EXTI17 comes from RTC Alarm Event, EXTI18 comes from USB wakeup Event, EXTI19 comes from RTC Tamper and TimeStamp Event, EXTI20comes from RTC Wakeup Event. Where are destination of EXTIs? or Where are EXTIs connected to?

[waclawek.jan]

In 'F0, the EXTI events serve only to wakeup, if you use WFE to go to some of the sleep-like modes.

JW

[FAlle.1]

In the STM32F407, What do the EXTI events serve to ?​

[waclawek.jan]

It has the same purpose.

JW