All R8C devices support a Local Interconnect Network interface (LIN). This is achieved by combining standard timer and UART circuits with a dedicated LIN control module. LIN is a standard interface that can connect one master node to a maximum of 15 slave nodes in a cluster. It allows bi-directional communication through a single-wire connection that significantly reduces wiring cost. This hardware LIN implementation also reduces CPU overhead by as much as 50% when compared to software-based solutions. Communication speed is limited to 20,000 bps for message reliability, and signal rise and fall times are specified to ensure good electromagnetic compatibility (EMC) performance. A self-synchronization mechanism simplifies networks and saves cost by eliminating the need for a stabilized clock at the slave nodes. Dynamic Configuration, another feature of LIN, allows devices to be configured in real time for specific functions, so standard modules can be reused in different applications, saving development time and cost. Although LIN was originally developed for automotive applications, this low-cost networking technology is now finding use in industrial and white-goods applications. The example application shown here is a Building Automation network system. The top controller or supervisor is an R32C device which is part of the M16C architecture and incorporates multiple CAN channels. The “subsystem” or “peripheral control” R8C devices can control lighting, motion sensor or motor control devices.