I have a problem with interfacing two serial port with 8051 microcontroller. I have to use bar code reader and RF reciver and transmitter which both of them interfaced serially. I am thinking to add an ic to controller these to serial ports, but I don't know which type of IC I should used!! could any one help me, please?
Thanks,
if I remember correctly, you can also refer to "The Art of Designing Embedded Systems", (2000) by Jack Ganssle, where the subject is explained along with assembly listings (for the Z80, I think). Either way, it is fine reading material!