Rich, here is a website I made a while ago detailing how to interface a PIC to a MAX7221 with bit-banged SPI communication. Please see if it helps you. http://marcel.carrietech.com/pic/spiled.php - Marcel -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist