Cmx865a programming with picbasicpro

[eee1984]

Hello friends

I have to use/ program cmx865a integrated circuit with picbasic pro( for dtmf and fsk modem) but I dont know general algoritm this procedure.

Are there any person who used this chip?? Or Do you know general dtmf and fsk algorithm..

Please help me :(

cmx865a datasheet is below

http://rapidshare.com/files/86491252/cmx865A.pdf.html