Handling two different UART device with one port

[majidkhalili]

Hi guys
i dont know if this is the best place ask this , so if i have to post it in different section pls let me know
i have an avr micro controller that is working with PC using one of its serial port , and the avr has only one other serisal port , and i need to work with tow different device using UART , i have know idea what can i do
one of the devices i'm just reading from , and another one i'm bot reading and writing
and the important thing is that for both these devices i have to use the interrupt , so i cant not use just simple mux to handle these to , because they should interrupt the avr to read the value of them , so with mux i migh lose the data

pls tell me any thing that can help
thanks

[pebe]

As I read your post the communication to the PC is not relevant, but you need to communicate between a single UART on the Arduino and two other serial devices. Is that what you want?