stm32 /stm32wba5 /STM32WBA52 /EXTI /EXTI_EXTICR3

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Interpret as EXTI_EXTICR3

EXTI11=B_0x00, EXTI9=B_0x00, EXTI8=B_0x00, EXTI10=B_0x00

Description

EXTI external interrupt selection register

Fields

EXTI8	EXTI8 GPIO port selection These bits are written by software to select the source input for EXTI8 external interrupt. When EXTI_SECCFGR.SEC8 is disabled, EXTI8 can be accessed with non-secure and secure access. When EXTI_SECCFGR.SEC8 is enabled, EXTI8 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR.PRIV8 is disabled, EXTI8 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR.PRIV8 is enabled, EXTI8 can only be accessed with privileged access. Unprivileged write to this bit is discarded. Others: reserved 0 (B_0x00): PA8 pin 1 (B_0x01): PB8 pin
EXTI9	EXTI9 GPIO port selection These bits are written by software to select the source input for EXTI9 external interrupt. When EXTI_SECCFGR.SEC9 is disabled, EXTI9 can be accessed with non-secure and secure access. When EXTI_SECCFGR.SEC9 is enabled, EXTI9 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR.PRIV9 is disabled, EXTI9 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR.PRIV9 is enabled, EXTI9 can only be accessed with privileged access. Unprivileged write to this bit is discarded. Others: reserved 0 (B_0x00): PA9 pin 1 (B_0x01): PB9 pin
EXTI10	EXTI10 GPIO port selection These bits are written by software to select the source input for EXTI10 external interrupt. When EXTI_SECCFGR.SEC10 is disabled, EXTI10 can be accessed with non-secure and secure access. When EXTI_SECCFGR.SEC10 is enabled, EXTI10 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR.PRIV10 is disabled, EXTI10 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR.PRIV10 is enabled, EXTI10 can only be accessed with privileged access. Unprivileged write to this bit is discarded. Others: reserved 0 (B_0x00): PA10 pin 1 (B_0x01): PB10 pin (reserved on STM32WBA55xx devices)
EXTI11	EXTI11 GPIO port selection These bits are written by software to select the source input for EXTI11 external interrupt. When EXTI_SECCFGR.SEC11 is disabled, EXTI11 can be accessed with non-secure and secure access. When EXTI_SECCFGR.SEC11 is enabled, EXTI11 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR.PRIV11 is disabled, EXTI11 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR.PRIV11 is enabled, EXTI11 can only be accessed with privileged access. Unprivileged write to this bit is discarded. Others: reserved 0 (B_0x00): PA11 pin 1 (B_0x01): PB11 pin

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