Hola,
        I'm trying to understand serial communication at the TTL level. My
understanding is that at a baud rate of say... 4800 bps you have a period
of 208 microseconds . Correct ?? If I'm correct then a PIC running at 4mhz
will have executed 208 instructions during the high/low period of the
signal. Instead of just setting there waiting for the signal to change
states could you not be doing some other work ?? Is this Ok ?
        What is the standard for receiving serial data ? Do you get some data th
en
return to the main loop ?? Or couldn't it be made to check pin state..do
other work..check pin state...write data to register after period..do other
work.
        I'm thinking to use an '84 as a servo controller.
        Any help or ideas is appreciated.
        Thanks !!!

James and Iliana Holbrook
Austin Texas