help for audio codec using VHDL

this is the pin table i just cant find the right pin for the names you have defined........ the board keeps playing sound irrespective of the program..... i dont know what to do ........ even if i get this done it would be great achievement leave alone the CDMA part.... i might use HDLC frame format instead but currently i need to manipulate the audio input. ...... and since the system is to be full duplex using nios is not the solution...... would you help me in pin assignment .............that would of great help