> i have been looking over some datasheets for pics, and have > started to wonder > what exactly a parallel slave port is. > how do i use it, what can it do, what is it for, etc.. Basically its to allow you to sit a PIC on the bus of another microprocessor and have it appear as a register that the other processor can read and write. The program on the PIC can then retrive the data sent by the other processor and place data for the other processor to read at its leisure. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist