APPLICATION NOTE 186

Creating Global Identifiers Using 1-Wire® Devices


Abstract: With the advent of Ethernet technology, Media Access Control (MAC) source and destination addresses became important. These are unique identifiers needed to specify the begin and end points in data transmission. This application note explains how to take advantage of generic and customized 1-Wire devices to create and manage unique identifiers such as those used for Ethernet technology. It explains various standards, including IEEE® standards, for globally unique identifiers. Specific identifiers discussed are: MAC-48 IDENTIFIER/EUI-48 GLOBAL identifier format, EUI-64 GLOBAL identifier format, FC-PH IEEE 48-bit identifier format, FC-PH IEEE extended identifier format, FC-PH IEEE registered name format, and FC-PH IEEE registered extended name format.