synchronize serial communication

Hi guys,

I am having real headache trying to develop a way for the pic to send 
data synchronised with a clock pulse. The main problem is that the 
data must be sent in Bits not Bytes for each fallin clock pulse to a 
Pin. The whole data to be sent is just 128Bits(Hard Coded). But the 
time of the sending is determined by the clock pulse. As long as a 
reset does not occur the Bit counter keeps on incrementing till it 
reach 128 then the Bit counter goes to 0 and starts over.

Please  help...