Abstract :
Today\´s customer deffiands for more value (as measured by performance, operating ease, cost, etc.) are being met, in part, by the inicreasing use of microprocessors (μP). Frequently the, μP not only proves to be essential to the achievemeent of product design objectives from a marketing standpoint but also gives the engineeit seeveral advantages such as 1) an enhanced ability to deal with "change" Change in product definition or changes caused by design errors/oversights found during the development cycle. 2) a more cost effective design¿frequently with fewer parts. 3) fewer design constraints between submodules due to the integrating capability of the μP.