> Of course that this has the down side of using a pin from the > just for the purpose of controling i2c/spi clock lines. Then why not just have two clock lines in the first place? Same number of pins, less complexity. As long as the PIC is the master of both busses, software implementations are trivial and the bus lines can easily come from any regular I/O pin. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist