RM0453 Rev 5 437/1450
RM0453 System configuration controller (SYSCFG)
445
Note: Some of the I/O pins mentioned in this register may not be available on small packages.
11.2.6 SYSCFG external interrupt configuration register 4
(SYSCFG_EXTICR4)
Address offset: 0x014
Reset value: 0x0000 0000
Note: Some of the I/O pins mentioned in this register may not be available on small packages.
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. EXTI15[2:0] Res. EXTI14[2:0] Res. EXTI13[2:0] Res. EXTI12[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 EXTI15[2:0]: EXTI15 configuration bits
These bits are written by software to select the source input for the EXTI15 external interrupt.
000: PA15 pin
001: PB15 pin
010: PC15 pin
Others: Reserved
Bit 11 Reserved, must be kept at reset value.
Bits 10:8 EXTI14[2:0]: EXTI14 configuration bits
These bits are written by software to select the source input for the EXTI14 external interrupt.
000: PA14 pin
001: PB14 pin
010: PC14 pin
Others: Reserved
Bit 7 Reserved, must be kept at reset value.
Bits 6:4 EXTI13[2:0]: EXTI13 configuration bits
These bits are written by software to select the source input for the EXTI13 external interrupt.
000: PA13 pin
001: PB13 pin
010: PC13 pin
Others: Reserved
Bit 3 Reserved, must be kept at reset value.
Bits 2:0 EXTI12[2:0]: EXTI12 configuration bits
These bits are written by software to select the source input for the EXTI12 external interrupt.
000: PA12 pin
001: PB12 pin
Others: Reserved
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