>as my design environment only supports 16f and 18f, i am limited to these
>series.
>pic16 do only have 1 usart.
>pic18 with 2 usart are not yet available.
>so i need to do a software solution.

The C18 compiler used to have a software UART as a library module. I believe 
it may be dropped from later releases though. 

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