STMicroelectronics STM32WL5 Series User Manual

System configuration controller (SYSCFG) RM0453
434/1450 RM0453 Rev 5
11.2.3 SYSCFG external interrupt configuration register 1
(SYSCFG_EXTICR1)
Address offset: 0x008
Reset value: 0x0000 0000
Bit 8 BOOSTEN: I/O analog switch voltage booster enable
0: I/O analog switches are supplied by V
DDA
voltage. This is the recommended configuration
when using the ADC in high V
DDA
voltage operation.
1: I/O analog switches are supplied by a dedicated voltage booster (supplied by V
DD
). This is
the recommended configuration when using the ADC in low V
DDA
voltage operation.
Bits 7:0 Reserved, must be kept at reset value.
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. EXTI3[2:0] Res. EXTI2[2:0] Res. EXTI1[2:0] Res. EXTI0[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 EXTI3[2:0]: EXTI3 configuration bits
These bits are written by software to select the source input for the EXTI3 external interrupt.
000: PA3 pin
001: PB3 pin
010: PC3 pin
111: PH3 pin
Others: Reserved
Bit 11 Reserved, must be kept at reset value.
Bits 10:8 EXTI2[2:0]: EXTI2 configuration bits
These bits are written by software to select the source input for the EXTI2 external interrupt.
000: PA2 pin
001: PB2 pin
010: PC2 pin
Others: Reserved
Bit 7 Reserved, must be kept at reset value.
Bits 6:4 EXTI1[2:0]: EXTI1 configuration bits
These bits are written by software to select the source input for the EXTI1 external interrupt.
000: PA1 pin
001: PB1 pin
010: PC1 pin
Others: Reserved
Bit 3 Reserved, must be kept at reset value.

STMicroelectronics STM32WL5 Series Specifications

General

Brand	STMicroelectronics
Model	STM32WL5 Series
Category	Microcontrollers
Language	English