using PIC 16f84 at 315 MHZ

[Darrel Taylor]

OoooKaaaay,

It really doesn't matter what frequency the RF link is operating at. The 16F84 will have it's own oscillator running at 10mhz or less. Simply add a DEFINE OSC 10 for a 10 mhz crystal, or change the number to the appropriate value to match you're crystal. And, be sure to set the oscillator config to "HS". (You will never get a 16F84 to run at 315Mhz)

Then, a quick look in the manual shows that 188 is the Mode for 4800 baud, or 16572 for inverted 4800 baud.

Or, go here for a complete list of Serin/Out modes.
http://www.melabs.com/resources/ser2modes.htm