stm32 /stm32wba5 /STM32WBA55 /EXTI /EXTI_EXTICR2

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Interpret as EXTI_EXTICR2

EXTI6=B_0x00, EXTI7=B_0x00, EXTI4=B_0x00, EXTI5=B_0x00

Description

EXTI external interrupt selection register

Fields

EXTI4	EXTI4 GPIO port selection These bits are written by software to select the source input for EXTI4 external interrupt. When EXTI_SECCFGR.SEC4 is disabled, EXTI4 can be accessed with non-secure and secure access. When EXTI_SECCFGR.SEC4 is enabled, EXTI4 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR.PRIV4 is disabled, EXTI4 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR.PRIV4 is enabled, EXTI4 can only be accessed with privileged access. Unprivileged write to this bit is discarded. Others: reserved 0 (B_0x00): No port pin selected 1 (B_0x01): PB4 pin
EXTI5	EXTI5 GPIO port selection These bits are written by software to select the source input for EXTI5 external interrupt. When EXTI_SECCFGR.SEC5 is disabled, EXTI5 can be accessed with non-secure and secure access. When EXTI_SECCFGR.SEC5 is enabled, EXTI5 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR.PRIV5 is disabled, EXTI5 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR.PRIV5 is enabled, EXTI5 can only be accessed with privileged access. Unprivileged write to this bit is discarded. Others: reserved 0 (B_0x00): PA5 pin 1 (B_0x01): PB5 pin
EXTI6	EXTI6 GPIO port selection These bits are written by software to select the source input for EXTI6 external interrupt. When EXTI_SECCFGR.SEC6 is disabled, EXTI6 can be accessed with non-secure and secure access. When EXTI_SECCFGR.SEC6 is enabled, EXTI6 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR.PRIV6 is disabled, EXTI6 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR.PRIV6 is enabled, EXTI6 can only be accessed with privileged access. Unprivileged write to this bit is discarded. Others: reserved 0 (B_0x00): PA6 pin 1 (B_0x01): PB6 pin
EXTI7	EXTI7 GPIO port selection These bits are written by software to select the source input for EXTI7 external interrupt. When EXTI_SECCFGR.SEC7 is disabled, EXTI7 can be accessed with non-secure and secure access. When EXTI_SECCFGR.SEC7 is enabled, EXTI7 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR.PRIV7 is disabled, EXTI7 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR.PRIV7 is enabled, EXTI7 can only be accessed with privileged access. Unprivileged write to this bit is discarded. Others: reserved 0 (B_0x00): PA7 pin 1 (B_0x01): PB7 pin

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