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STMicroelectronics /STM32U031 /EXTI /EXTI_EXTICR1

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Interpret as EXTI_EXTICR1

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31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (B_0x00)EXTI00 (B_0x00)EXTI10 (B_0x00)EXTI20 (B_0x00)EXTI3

EXTI2=B_0x00, EXTI0=B_0x00, EXTI3=B_0x00, EXTI1=B_0x00

Description

EXTI external interrupt selection register 1

Fields

EXTI0

EXTI0 GPIO port selection These bits are written by software to select the source input for EXTI0 external interrupt. Others reserved

0 (B_0x00): PA[0] pin

1 (B_0x01): PB[0] pin

2 (B_0x02): PC[0] pin

3 (B_0x03): PD[0] pin

5 (B_0x05): PF[0] pin
EXTI1

EXTI1 GPIO port selection These bits are written by software to select the source input for EXTI1 external interrupt. Others reserved

0 (B_0x00): PA[1] pin

1 (B_0x01): PB[1] pin

2 (B_0x02): PC[1] pin

3 (B_0x03): PD[1] pin

5 (B_0x05): PF[1] pin
EXTI2

EXTI2 GPIO port selection These bits are written by software to select the source input for EXTI2 external interrupt. Others reserved

0 (B_0x00): PA[2] pin

1 (B_0x01): PB[2] pin

2 (B_0x02): PC[2] pin

3 (B_0x03): PD[2] pin

5 (B_0x05): PF[2] pin
EXTI3

EXTI3 GPIO port selection These bits are written by software to select the source input for EXTI3 external interrupt. Others reserved

0 (B_0x00): PA[3] pin

1 (B_0x01): PB[3] pin

2 (B_0x02): PC[3] pin

3 (B_0x03): PD[3] pin

5 (B_0x05): PF[3] pin

Links

()

Register Reference

https://github.com/cmsis-svd/cmsis-svd-data