ST STM32L4+ Series Reference Manual page 359

RM0432
9.2.6 SYSCFG external interrupt configuration register 4
(SYSCFG_EXTICR4)
Address offset: 0x14
Reset value: 0x0000 0000
31 30 29
Res. Res. Res. Res.
15 14 13
EXTI15[3:0]
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Bits 31:16 Reserved, must be kept at reset value.
Bits 15:12 EXTI15[3:0]: EXTI 15 configuration bits
28 27 26 25
Res. Res. Res.
12 11 10 9
EXTI14[3:0]
rw rw rw rw
These bits are written by software to select the source input for the EXTI15 external
interrupt.
0000: PA[15] pin
0001: PB[15] pin
0010: PC[15] pin
0011: PD[15] pin
0100: PE[15] pin
0101: PF[15] pin
0110: PG[15] pin
0111: PH[15] pin
1000: Reserved
System configuration controller (SYSCFG)
24 23 22
Res. Res. Res.
8 7 6
EXTI13[3:0]
rw rw rw
RM0432 Rev 6
21 20 19 18
Res. Res. Res. Res.
5 4 3 2
EXTI12[3:0]
rw rw rw rw
17 16
Res. Res.
1 0
rw rw
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