some body told me to use very less baud rate like 1200,600,300
and the data transmission must me continious so
trnsmit some predefined data.like 10101010 or 11001100 as your wish
so by default the SBUF is loadded with this default data
and load some specified data as per the events
that main logic is the signal transmission should not be broken
but i preffer to go for serial trancevers which do not need any encoders or decoders