Ethernet-enabled devices are quickly becoming the new standard of devices in the industry. Serial ports continue to be removed from personal computers to make way for Ethernet applications. Remote monitoring capabilities, like changing the temperature setting of one’s home from a computer at work, will soon be widely used for many types of applications. The new focus on Ethernet requires a large group of people to advance from serial communications to Ethernet. The MCF51CN is designed to meet this specific migration need. It is an ideal solution for customers currently using serial communication, but needing to upgrade to an Ethernet-based system, as well as any new applications requiring 10/100 Ethernet connectivity.