Hi, It is me again, one question: Are Start and StoP bits for PIC17C75X being generated by hardware in Async. mode? or I should generate them by software? coz I always receiving the same character in TTY terminal! HELP P'SE. Thanks in advance, -- ------------------------------------------------------------------ Ismael M. Khangane, Specialist in Robotics. Automatic Control & Systems ( Bsc in Eng.) Instituto de Automatica Industrial IAI-CSIC Madrid, Spain. Tel: (34) 91 871 1900 Fax: (34) 91 871 7050 E-mail: imkesp@excite.com ; ismaelm@iai.csic.es ------------------------------------------------------------------