At 08:38 AM 10/22/98 -0600, you wrote: >Wafer Scale make products that act as program ROM and port extenders for microprocessors. Their documents do not show examples of 17C4x, but the product looks ideal. >1. Has anyone used their product with 17C4x? Do the ROM and ports work fine? >2. Can the 'ROM' be re-written in the field? Code updates by modem or just storing data from the program into the device? >Ed Todd >http://www.sni.net/cedardell Ed, have you tryed the I-Button? what is the address for Wafer Scale? douglas@ic.mankato.mn.us