need help

Hi

any one who can help me

i need help with the wm8731 audio codec present on the altera de2 board prepared by terasic

i want to know how do i get my audio data in and once the data is in where is it available for me to manipulate the data and finally how to get my data out

also i need to know the function of the i2c interface as well as the different pins of the audio codec

ie adclrc ,daclrc etc

i have gone through the data sheets but could not get a rigid idea

thanks in advance for anyone who can help me