User`s manual

Hardware Setup 2-13

2.5.8. System Management Bus Header

This header is reserved for system management bus (SM bus). The SM bus is a

specific implementation of an I

C bus. I

C is a multi-master bus, which means that

multiple chips can be connected to the same bus and each one can act as a master by

initiating a data transfer. If more than one master simultaneously tries to control the

bus, an arbitration procedure decides which master gets priority.

User’s Manual