Freescale Semiconductor, Inc. Order this document by EB413/D Motorola Semiconductor Engineering Bulletin EB413 Freescale Semiconductor, Inc Resetting MCUs By Ross Mitchell MCU Applications Motorola Ltd. East Kilbride, Scotland Introduction A simple function such as reset can cause many problems since different applications impose very different conditions on the start up and power down of the microcontroller unit (MCU). This document covers the main issues relating to reset and aims to lead.