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System configuration controller (SYSCFG) RM0090

294/1731 DocID018909 Rev 11

9.2.5 SYSCFG external interrupt configuration register 3

(SYSCFG_EXTICR3)

Address offset: 0x10

Reset value: 0x0000 0000

Bits 31:16 Reserved, must be kept at reset value.

Bits 15:0 EXTIx[3:0]: EXTI x configuration (x = 4 to 7)

These bits are written by software to select the source input for the EXTIx

external interrupt.

0000: PA[x] pin

0001: PB[x] pin

0010: PC[x] pin

0011: PD[x] pin

0100: PE[x] pin

0101: PF[x] pin

0110: PG[x] pin

0111: PH[x] pin

1000: PI[x] pin

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

Reserved

1514131211109876543210

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, must be kept at reset value.

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 the EXTIx external

interrupt.