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Creating a raising edge to wake up the micro controller

Question asked by subramani.deepan on Nov 21, 2014
Latest reply on Nov 24, 2014 by John F.
Need help in understanding the following circuit used by the STM32VLDISCOVERY board.

The documentation says the STM32 micro controller can be woken up by a raising edge. My interpretation is that the pull up resistor connected between the 3.3V and the wakeup pin will pull the wakeup pin high on power on. But I am not able to understand the use of the second resistor between the wake up pin and the ground. Will the two resistors not form a voltage divider circuit ?