When multiple pins are simultaneously set to the same external interrupt, what is the external interrupt logic based on the mode bit and polarity bit? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.
* Question
| When multiple pins are simultaneously set to the same external interrupt, what is the external interrupt logic based on the mode bit and polarity bit? |
* Answer
| The external interrupt logic is processed as follows: In the low-level trigger mode, the state of all pins using the EINT function is connected to a positive logic AND gate.If there is a multi-pin input, use the pin with the lowest GPIo port number, regardless of the polarity setting of the pin.Selecting multiple EINT pins in the edge trigger mode is considered a programming error. |