hi i saw the tutorial ,it is very nice but i want to know how in the example he made the write bit and read bit is 1 i am trying to test it on 2 atmega 8 (which has no difference from that )
so how does the slave can distiguish between write and read i really need ur help i have spent alooong time researching 
my problem is in how the read bit is written and how is it read by the slave
thanks in advanced