Thank you for all your replies. I'm actually working with analog devices microconverter ADuC812, it supports speeds of up to 16 MHz. Someone suggested that I reload the clock with 0xFE and not double the baud rate to get a baud rate close to 19.2kbps, however that didn't work. I know that the baud rate can handle error up to about 5%. I realize that being an 8 bit timer, setting the lower nibble has no effect on the reload... Many of you mentioned that I cannot get a 19.2 kbps rate, but I should be able to get within 5% no? I was also thinking about using timer 2 for maybe better resolution, as timer 2 counts each clock tick, vs. every 12 cycles.