System configuration controller (SYSCFG) RM0453
436/1450 RM0453 Rev 5
Note: Some of the I/O pins mentioned in this register may not be available on small packages.
11.2.5 SYSCFG external interrupt configuration register 3
(SYSCFG_EXTICR3)
Address offset: 0x010
Reset value: 0x0000 0000
Bits 2:0 EXTI4[2:0]: EXTI4 configuration bits
These bits are written by software to select the source input for the EXTI4 external interrupt.
000: PA4 pin
001: PB4 pin
010: PC4 pin
Others: Reserved
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.
1514131211109876543210
Res. EXTI11[2:0] Res. EXTI10[2:0] Res. EXTI9[2:0] Res. EXTI8[2:0]
rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:15 Reserved, must be kept at reset value.
Bits 14:12 EXTI11[2:0]: EXTI11 configuration bits
These bits are written by software to select the source input for the EXTI11 external interrupt.
000: PA11 pin
001: PB11 pin
Others: Reserved
Bit 11 Reserved, must be kept at reset value.
Bits 10:8 EXTI10[2:0]: EXTI10 configuration bits
These bits are written by software to select the source input for the EXTI10 external interrupt.
000: PA10 pin
001: PB10 pin
Others: Reserved
Bit 7 Reserved, must be kept at reset value.
Bits 6:4 EXTI9[2:0]: EXTI9 configuration bits
These bits are written by software to select the source input for the EXTI9 external interrupt.
000: PA9 pin
001: PB9 pin
Others: Reserved
Bit 3 Reserved, must be kept at reset value.
Bits 2:0 EXTI8[2:0]: EXTI8 configuration bits
These bits are written by software to select the source input for the EXTI8 external interrupt.
000: PA8 pin
001: PB8 pin
Others: Reserved