MC60E MODULE problem with GNSS_EN pin

I an using MC60E all in one design technique , now my controller also requires 3.3V and so does GNSS _VCC , as i have already used LM1117 LDO and don’t want to increase the number of components so i am thinking of giving the output from regulator to my controller as well as GNSS_VCC , i am facing the problem with GNSS_EN pin , how does it work, can i connect to one of the DIOs of my controller ,what is it’s purpose?

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