I'm using AD7190 with STM32F103 for data logging. The datasheet of the ad7190 said that the DOUT/RDY falling edge can be used as an interrupt to a processor since it will go low to indicate the completion of a conversion. I'm using the continuous conversion mode of the ad7190, so I need to continuously monitor this pin. The DOUT/RDY pin of the ad7190 is connected to the MISO pin of the stm32f103.
How can I set the MISO pin of the stm32 as an external interrupt pin to detect the falling edge while it was set as MISO pin?