STMicroelectronics STM32WLEx Reference Manual page 346

System configuration controller (SYSCFG)
Note: Some of the I/O pins mentioned in this register may not be available on small packages.
9.2.6 SYSCFG external interrupt configuration register 4
(SYSCFG_EXTICR4)
Address offset: 0x014
Reset value: 0x0000 0000
31 30 29
Res. Res. Res. Res.
15 14 13
Res. EXTI15[2:0]
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
Note: Some of the I/O pins mentioned in this register may not be available on small packages.
346/1306
28 27 26 25
Res. Res. Res.
12 11 10 9
Res. EXTI14[2:0]
rw rw rw
24 23 22
Res. Res. Res.
8 7 6
Res. EXTI13[2:0]
rw rw
RM0461 Rev 5
21 20 19 18
Res. Res. Res. Res.
5 4 3 2
Res.
rw rw rw
RM0461
17 16
Res. Res.
1 0
EXTI12[2:0]
rw rw