baud rate

[Amit Joshi]

the maximum baud rate of serial communication can be achieve if 16 MHZ crystal are used and UBRR=0

 

for asyncrohouns   (if U2X=0) Fosc/16=1Mbps

                             (if U2X=1) Fosc/8=  2Mbps

 

for syncrohouns master mode Fosc/2= 8Mbps