Is an external pull-up required on WAKEUP pin? | Cypress Semiconductor
Is an external pull-up required on WAKEUP pin?
I want to use the Stop mode of CYBLE-012011-00 in my project.
I know that only the pins XRES and WAKEUP (P2 for CYBLE-012011-00) can be used to wakeup the device from stop mode.
The question is whether if an external pull-up resistor is required on the WAKEUP pin.
I do have an example project that seems to work with a switch attached to P2, P2 set as resistive pull up and the polarity of the wakeup pin set to active low, but I just want to check before I design my custom PCB.