RM0453 Rev 1 515/1461
RM0453 Extended interrupts and event controller (EXTI)
524
16.6.3 EXTI software interrupt event register (EXTI_SWIER1)
Address offset: 0x008
Reset value: 0x0000 0000
Contains only register bits for configurable events.
Bits 31:23 Reserved, must be kept at reset value.
Bit 22 FT22: falling trigger event configuration bit of configurable event input 22
0: falling trigger disabled (for event and interrupt) for input line
1: falling trigger enabled (for event and interrupt) for input line
Note: The configurable event inputs are edge triggered. No glitch must be generated on
these inputs. If a falling edge on the configurable event input occurs while writing to the
register, the associated pending bit is not set.
Rising and falling edge triggers can be set for the same configurable event input. In this
case, both edges generate a trigger.
Bit 21 FT21: falling trigger event configuration bit of configurable event input 21
Bits 20:17 Reserved, must be kept at reset value.
Bit 16 FT16: falling trigger event configuration bit of configurable event input 16
Bit 15 FT15: falling trigger event configuration bit of configurable event input 15
Bit 14 FT14: falling trigger event configuration bit of configurable event input 14
Bit 13 FT13: falling trigger event configuration bit of configurable event input 13
Bit 12 FT12: falling trigger event configuration bit of configurable event input 12
Bit 11 FT11: falling trigger event configuration bit of configurable event input 11
Bit 10 FT10: falling trigger event configuration bit of configurable event input 10
Bit 9 FT9: falling trigger event configuration bit of configurable event input 9
Bit 8 FT8: falling trigger event configuration bit of configurable event input 8
Bit 7 FT7: falling trigger event configuration bit of configurable event input 7
Bit 6 FT6: falling trigger event configuration bit of configurable event input 6
Bit 5 FT5: falling trigger event configuration bit of configurable event input 5
Bit 4 FT4: falling trigger event configuration bit of configurable event input 4
Bit 3 FT3: falling trigger event configuration bit of configurable event input 3
Bit 2 FT2: falling trigger event configuration bit of configurable event input 2
Bit 1 FT1: falling trigger event configuration bit of configurable event input 1
Bit 0 FT0: falling trigger event configuration bit of configurable event input 0
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. SWI22 SWI21 Res. Res. Res. Res. SWI16
rw rw rw
1514131211109876543210
SWI15 SWI14 SWI13 SWI12 SWI11 SWI10 SWI9 SWI8 SWI7 SWI6 SWI5 SWI4 SWI3 SWI2 SWI1 SWI0
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
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