1 Xbee at PC with X-CTU & 1 XBee at Altera EPLD

good day!
i haven’t enough time to read and understand all docs, so, could you help me, please.
i need step by step instructions what signals on what pins i should send by EPLD to connect two XBee RF OEM modules in peer-to-peer mode (or smth like this, the main is connect just 2 modules to trancieve data).
basically, doesn’t matter - AT or API mode, but it is desirable to find the simplest way.