An innovative approach was taken to reduce the number of I/O required to interface to the Ethernet Controller. Using a standard 4-wire SPI interface Ethernet controller, similar features could be accomplished when adding Ethernet to the design. Due to the lesser number of I/O required to the host microcontroller, now a 64-pin device could be considered while maintaining the same features. In this design implementation, the advantages associated with the interface and board space are compared with the previously discussed implementation.