I am trying to verify how I wire and setup my new mamba f722 app mk1 flight controller with the frsky r9mm f.port firmware . I believe I just use f/s.port on r9mm to fport tab on flight controller and turn on port 5 serial rx. Just trying to verify this?

I am confused on if I wire f.port on r9mm to s/f.port pad on flight controller or tx5 or tx1? Somehow fried my previous flight controller while trying to upgrade to the r9mm . So now I am worried. And want to make sure I wire it right.