RM0453 Rev 1 433/1461
RM0453 System configuration controller (SYSCFG)
445
Note: Some of the I/O pins mentioned in this register may not be available on small packages.
Bits 31:15 Reserved, must be kept at reset value.
Bits 14:12 EXTI11[2:0]: EXTI11 configuration bits
These bits are written by software to select the source input for the EXTI11 external interrupt.
000: PA11 pin
001: PB11 pin
010: Reserved
011: Reserved
100: Reserved
101: Reserved
110: Reserved
111: Reserved
Bit 11 Reserved, must be kept at reset value.
Bits 10:8 EXTI10[2:0]: EXTI10 configuration bits
These bits are written by software to select the source input for the EXTI10 external interrupt.
000: PA10 pin
001: PB10 pin
010: Reserved
011: Reserved
100: Reserved
101: Reserved
110: Reserved
111: Reserved
Bit 7 Reserved, must be kept at reset value.
Bits 6:4 EXTI9[2:0]: EXTI9 configuration bits
These bits are written by software to select the source input for the EXTI9 external interrupt.
000: PA9 pin
001: PB9 pin
010: Reserved
011: Reserved
100: Reserved
101: Reserved
110: Reserved
111: Reserved
Bit 3 Reserved, must be kept at reset value.
Bits 2:0 EXTI8[2:0]: EXTI8 configuration bits
These bits are written by software to select the source input for the EXTI8 external interrupt.
000: PA8 pin
001: PB8 pin
010: Reserved
011: Reserved
100: Reserved
101: Reserved
110: Reserved
111: Reserved
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