Zigbee communication using PIC18F46K22 with UART communication

I have wrritten code for UART using PIC18F46K22. from UART output pins TX and RX are given to Din and Dout of Zigbee and CTS is active low signal is given to one GPIO.
can help me how to interface zigbee to micro controller.

The document located at https://forms.na1.netsuite.com/app/site/hosting/scriptlet.nl?script=457&deploy=2&compid=818164&h=5928a16f2b6f9582b799&articleid=1368 should help you understand how to make the 3V to 5V connection.

Thank you for the reply. i have given external power supply of 3v to zigbee. here constraint is coding. to configure zigbees in micro controller code.