ST STM32G4 Series Reference Manual page 333

RM0440
9.2.6 SYSCFG external interrupt configuration register 4
(SYSCFG_EXTICR4)
Address offset: 0x14
Reset value: 0x0000 0000
31 30 29
Res Res Res
15 14 13
EXTI15[3:0]
rw rw rw
Bits 31:16 Reserved, must be kept at reset value.
Bits 15:12 EXTI15[3:0]: EXTI 15 configuration bits
Bits 11:8 EXTI14[3:0]: EXTI 14 configuration bits
Bits 7:4 EXTI13[3:0]: EXTI 13 configuration bits
Bits 3:0 EXTI12[3:0]: EXTI 12 configuration bits
28 27 26 25
Res 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
These bits are written by software to select the source input for the EXTI14 external
interrupt.
0000: PA[14] pin
0001: PB[14] pin
0010: PC[14] pin
0011: PD[14] pin
0100: PE[14] pin
0101: PF[14] pin
These bits are written by software to select the source input for the EXTI13 external
interrupt.
0000: PA[13] pin
0001: PB[13] pin
0010: PC[13] pin
0011: PD[13] pin
0100: PE[13] pin
0101: PF[13] pin
These bits are written by software to select the source input for the EXTI12 external
interrupt.
0000: PA[12] pin
0001: PB[12] pin
0010: PC[12] pin
0011: PD[12] pin
0100: PE[12] pin
0101: PF[12] pin
System configuration controller (SYSCFG)
24 23 22
Res Res Res
8 7 6
EXTI13[3:0]
rw rw rw
RM0440 Rev 1
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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