EXTI13=B_0x00, EXTI15=B_0x00, EXTI14=B_0x00, EXTI12=B_0x00
EXTI external interrupt selection register
| EXTI12 | EXTI0 GPIO port selection These bits are written by software to select the source input for EXTI12 external interrupt. When EXTI_SECCFGR.SEC12 is disabled, EXTI12 can be accessed with non-secure and secure access. When EXTI_SECCFGR.SEC12 is enabled, EXTI12 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR.PRIV12 is disabled, EXTI12 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR.PRIV12 is enabled, EXTI12 can only be accessed with privileged access. Unprivileged write to this bit is discarded. Others: reserved 0 (B_0x00): PA12 pin 1 (B_0x01): PB12 pin |
| EXTI13 | EXTI13 GPIO port selection These bits are written by software to select the source input for EXTI13 external interrupt. When EXTI_SECCFGR.SEC13 is disabled, EXTI13 can be accessed with non-secure and secure access. When EXTI_SECCFGR.SEC13 is enabled, EXTI13 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR.PRIV13 is disabled, EXTI13 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR.PRIV13 is enabled, EXTI13 can only be accessed with privileged access. Unprivileged write to this bit is discarded. Others: reserved 0 (B_0x00): PA13 pin 1 (B_0x01): PB13 pin 2 (B_0x02): PC13 pin |
| EXTI14 | EXTI14 GPIO port selection These bits are written by software to select the source input for EXTI14 external interrupt. When EXTI_SECCFGR.SEC14 is disabled, EXTI14 can be accessed with non-secure and secure access. When EXTI_SECCFGR.SEC14 is enabled, EXTI14 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR.PRIV14 is disabled, EXTI14 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR.PRIV14 is enabled, EXTI14 can only be accessed with privileged access. Unprivileged write to this bit is discarded. Others: reserved 0 (B_0x00): PA14 pin 1 (B_0x01): PB14 pin 2 (B_0x02): PC14 pin |
| EXTI15 | EXTI15 GPIO port selection These bits are written by software to select the source input for EXTI15 external interrupt. When EXTI_SECCFGR.SEC15 is disabled, EXTI15 can be accessed with non-secure and secure access. When EXTI_SECCFGR.SEC15 is enabled, EXTI15 can only be accessed with secure access. Non-secure write is discarded and non-secure read returns 0. When EXTI_PRIVCFGR.PRIV15 is disabled, EXTI15 can be accessed with privileged and unprivileged access. When EXTI_PRIVCFGR.PRIV15 is enabled, EXTI15 can only be accessed with privileged access. Unprivileged write to this bit is discarded. Others: reserved 0 (B_0x00): PA15 pin 1 (B_0x01): PB15 pin 2 (B_0x02): PC15 pin |