Hi,
I have read in a book "Serial Port complete, 2nd edition" that the clock of UART should be 16 times the baud rate. but i have never seen any microcontroller in which we set the frequency of UART before configuring it for specific baud rate.!!! So,
1) Why the frequency should be 16 times the baud rate??
2) Can you give me an example (of any microcontroler) where we set the UART frequency???
2) What the purpose of setting clock frequency to UART if we have timers??? Like we generate baud rate in simple 89c52 through timer1 and we don't set any frequency!!!!