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 ...