External Interrupt/Event Line Mapping; Figure 20. External Interrupt/Event Gpio Mapping - ST STM32F207 Series Reference Manual

Advanced arm-based 32-bit mcus

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External interrupt/event line mapping

The 140 GPIOs are connected to the 16 external interrupt/event lines in the following

The seven other EXTI lines are connected as follows:

EXTI line 16 is connected to the PVD output

EXTI line 17 is connected to the RTC Alarm event

EXTI line 18 is connected to the USB OTG FS Wakeup event

EXTI line 19 is connected to the Ethernet Wakeup event

EXTI line 20 is connected to the USB OTG HS (configured in FS) Wakeup event

EXTI line 21 is connected to the RTC Tamper and TimeStamp events

EXTI line 22 is connected to the RTC Wakeup event

EXTI0[3:0] bits in the SYSCFG_EXTICR1 register

EXTI1[3:0] bits in the SYSCFG_EXTICR1 register

EXTI15[3:0] bits in the SYSCFG_EXTICR4 register

RM0033 Rev 9

Interrupts and events

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