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The following are the sources that can wake up your device from deep sleep:
Can you specify your application so that I can see if you have any other option?. If possible share your project file.
Refer PSoC 4 Low-Power Modes and Power Reduction Techniques
I was able to find a post in the community that had a similar implementation. I think this will help you.
There is also a sample project attached to it. Kindly view it.
Also, any of the sources is capable of waking the device up. You don't need any specific implementation to make both or any one source to wake the device from deep sleep. It is taken care of automatically.