I can't seem to find info on enabling the External Coexistence Interface on the photon. I would like to use the pins with an external radio as described on the datasheet. I expected holding BTCX_RF_ACTIVE high would block the photon from transmitting, but I see no effect. I also expected to see BTCX_TXCONF go high intermittently giving the other radio permission to TX. The other radio behaves as expected when pulled high or low.
So my main question is, do I need to enable the signals somehow? And is the behavior I expect correct?
I did see the threads on trying to use the pins as GPIO but no direction on using them as defined.