ST STM32F10 Series User Manual

General purpose and alternate function I/O (GPIO and AFIO) UM0306
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5.4.4 External interrupt configuration register 3 (AFIO_EXTICR3)
Address offset: 10h
Reset value: 0000h
5.4.5 External interrupt configuration register 4 (AFIO_EXTICR4)
Address offset: 14h
Reset value: 0000h
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Reserved
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
EXTI11[3:0] EXTI10[3:0] EXTI9[3:0] EXTI8[3:0]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:16 Reserved
Bits 15:0
EXTIx[3:0]: EXTI x configuration (x= 8 to 11)
These bits are written by software to select the source input for EXTIx external
interrupt.
0000: PA[x] pin
0001: PB[x] pin
0010: PC[x] pin
0011: PD[x] pin
0100: PE[x] pin
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Reserved
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
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
Bits 15:0
EXTIx[3:0]: EXTI x configuration (x= 12 to 15)
These bits are written by software to select the source input for EXTIx external
interrupt.
0000: PA[x] pin
0001: PB[x] pin
0010: PC[x] pin
0011: PD[x] pin
0100: PE[x] pin
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ST STM32F10 Series Specifications

General

Brand	ST
Model	STM32F10 Series
Category	Microcontrollers
Language	English