System configuration controller (SYSCFG) RM0440
376/2126 RM0440 Rev 4
10.2.6 SYSCFG external interrupt configuration register 4
(SYSCFG_EXTICR4)
Address offset: 0x14
Reset value: 0x0000 0000
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
EXTI15[3:0] EXTI14[3:0] EXTI13[3:0] EXTI12[3:0]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:16 Reserved, must be kept at reset value.
Bits 15:12 EXTI15[3:0]: EXTI 15 configuration bits
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
Bits 11:8 EXTI14[3:0]: EXTI 14 configuration bits
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
Bits 7:4 EXTI13[3:0]: EXTI 13 configuration bits
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
Bits 3:0 EXTI12[3:0]: EXTI 12 configuration bits
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
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