FPIF50=B_0x0, FPIF46=B_0x0, FPIF53=B_0x0
EXTI falling edge pending register 2
| FPIF46 | configurable event inputs x falling edge pending bit 0 (B_0x0): No falling edge trigger request occurred 1 (B_0x1): Falling edge trigger request occurred |
| FPIF50 | configurable event inputs x falling edge pending bit 0 (B_0x0): No falling edge trigger request occurred 1 (B_0x1): Falling edge trigger request occurred |
| FPIF53 | configurable event inputs x falling edge pending bit 0 (B_0x0): No falling edge trigger request occurred 1 (B_0x1): Falling edge trigger request occurred |