stm32 /stm32h5 /STM32H573 /EXTI /EXTI_EXTICR2

EXTI4 GPIO port selection These bits are written by software to select the source input for EXTI4 external interrupt. When EXTI_SECCFGR1.SEC4 is disabled, EXTI4 can be accessed with non-secure and secure access. When EXTI_SECCFGR1.SEC4 is enabled, EXTI4 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR1.PRIV4 is disabled, EXTI4 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR1.PRIV4 is enabled, EXTI4 can only be accessed with privileged access. Unprivileged write to this bit is discarded. Others: reserved

0 (B_0x00): PA4 pin

1 (B_0x01): PB4 pin

2 (B_0x02): PC4 pin

3 (B_0x03): PD4 pin

4 (B_0x04): PE4 pin

5 (B_0x05): PF4 pin

6 (B_0x06): PG4 pin

7 (B_0x07): PH4 pin

8 (B_0x08): PI4 pin

EXTI5 GPIO port selection These bits are written by software to select the source input for EXTI5 external interrupt. When EXTI_SECCFGR1.SEC5 is disabled, EXTI5 can be accessed with non-secure and secure access. When EXTI_SECCFGR1.SEC5 is enabled, EXTI5 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR1.PRIV5 is disabled, EXTI5 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR1.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

2 (B_0x02): PC5 pin

3 (B_0x03): PD5 pin

4 (B_0x04): PE5 pin

5 (B_0x05): PF5 pin

6 (B_0x06): PG5 pin

7 (B_0x07): PH5 pin

8 (B_0x08): PI5 pin

EXTI6 GPIO port selection These bits are written by software to select the source input for EXTI6 external interrupt. When EXTI_SECCFGR1.SEC6 is disabled, EXTI6 can be accessed with non-secure and secure access. When EXTI_SECCFGR1.SEC6 is enabled, EXTI6 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR1.PRIV6 is disabled, EXTI6 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR1.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

2 (B_0x02): PC6 pin

3 (B_0x03): PD6 pin

4 (B_0x04): PE6 pin

5 (B_0x05): PF6 pin

6 (B_0x06): PG6 pin

7 (B_0x07): PH6 pin

8 (B_0x08): PI6 pin

EXTI7 GPIO port selection These bits are written by software to select the source input for EXTI7 external interrupt. When EXTI_SECCFGR1.SEC7 is disabled, EXTI7 can be accessed with non-secure and secure access. When EXTI_SECCFGR1.SEC7 is enabled, EXTI7 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR1.PRIV7 is disabled, EXTI7 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR1.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

2 (B_0x02): PC7 pin

3 (B_0x03): PD7 pin

4 (B_0x04): PE7 pin

5 (B_0x05): PF7 pin

6 (B_0x06): PG7 pin

7 (B_0x07): PH7 pin

8 (B_0x08): PI7 pin