RegViz: Visualize EXTI_FTSR1 Bitfield

STMicroelectronics /STM32U5Fx /EXTI /EXTI_FTSR1

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Interpret as EXTI_FTSR1

FT11=B_0x0, FT5=B_0x0, FT3=B_0x0, FT24=B_0x0, FT18=B_0x0, FT10=B_0x0, FT25=B_0x0, FT20=B_0x0, FT19=B_0x0, FT21=B_0x0, FT7=B_0x0, FT12=B_0x0, FT2=B_0x0, FT0=B_0x0, FT9=B_0x0, FT15=B_0x0, FT16=B_0x0, FT22=B_0x0, FT6=B_0x0, FT1=B_0x0, FT4=B_0x0, FT14=B_0x0, FT13=B_0x0, FT17=B_0x0, FT8=B_0x0, FT23=B_0x0

Description

EXTI falling trigger selection register

Fields

FT0	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT1	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT2	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT3	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT4	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT5	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT6	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT7	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT8	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT9	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT10	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT11	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT12	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT13	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT14	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT15	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT16	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT17	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT18	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT19	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT20	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT21	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT22	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT23	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT24	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.
FT25	Falling trigger event configuration bit of configurable event input x When EXTI_SECCFGR.SECx is disabled, FTx can be accessed with non-secure and secure access. When EXTI_SECCFGR.SECx is enabled, FTx can only be accessed with secure access. Non-secure write to this FTx is discarded, non-secure read returns 0. When EXTI_PRIVCFGR.PRIVx is disabled, FTx can be accessed with unprivileged and privileged access. When EXTI_PRIVCFGR.PRIVx is enabled, FTx can only be accessed with privileged access. Unprivileged write to this FTx is discarded, unprivileged read returns 0. Note: FT25, FT24, and FT23 bits are only available on some devices in the STM32U5 Series. Refer to the EXTI line connections table for its availability. If not present, consider this bit as reserved and keep at reset value. 0 (B_0x0): Falling trigger disabled (for event and interrupt) for input line 1 (B_0x1): Falling trigger enabled (for event and interrupt) for input line.

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