Help needed regarding AT32UC3B USB to I2S

HI All ,

Presently i am doing my Master Degree
I have chosen AT32UC3B0512 Mc from Atmel for my project..

It goes on like this.....
I have a Wireless data transferring module using , RF from Base to
Remote modules.
Now i have to rig up an interface circuit such that it shud accept
Digital data from PC USB port ...
I.e data from PC --- USB---- Atmel IC ---- Out through I2S pins ---
my module (Base)
I say I2S cuz , my base module accepts a synchronized data with a
particular clock hertz.
So as in i was checking for AT32UC3B device i found SSC as a best part
which could meet all my specifications...

I am planning to use I2S lines for digital data transmission i.e. 0's
and 1's ...
Its not audio , i am clear in this case..

3 lines , one for data , one for Synchronization signal and one for
the Clock (5MHz )
The sync signal is used to tell the transmitter that the data is ready
for transmission
Its high when data is available , its low when data is not ...