ST STM32L4+ Series Reference Manual page 356

System configuration controller (SYSCFG)
9.2.4 SYSCFG external interrupt configuration register 2
(SYSCFG_EXTICR2)
Address offset: 0x0C
Reset value: 0x0000 0000
31 30 29
Res. Res. Res. Res.
15 14 13
EXTI7[3:0]
rw rw rw
Bits 31:16 Reserved, must be kept at reset value.
Bits 15:12 EXTI7[3:0]: EXTI 7 configuration bits
356/2301
28 27 26 25
Res. Res. Res.
12 11 10 9
EXTI6[3:0]
rw rw rw rw
These bits are written by software to select the source input for the EXTI7
external interrupt.
0000: PA[7] pin
0001: PB[7] pin
0010: PC[7] pin
0011: PD[7] pin
0100: PE[7] pin
0101: PF[7] pin
0110: PG[7] pin
0111: PH[7] pin
1000: PI[7] pin
24 23 22
Res. Res. Res.
8 7 6
EXTI5[3:0]
rw rw rw
RM0432 Rev 6
21 20 19 18
Res. Res. Res. Res.
5 4 3 2
EXTI4[3:0]
rw rw rw rw
RM0432
17 16
Res. Res.
1 0
rw rw