Hi All, I need to invert the whole UART input including start and stop bit. same as= adding external inverter 7404. I like to know if this is possible doing it in pic? =A0I am using =A0PIC24F= J256GB110. =A0 did any one try it any info?=A0 thanks Andre =A0=A0 --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .