Advancing zonal architecture with 10BASE-T1S endpoints delivers smarter remote connectivity

As the automotive industry transitions to zonal architectures for in-vehicle networking, designers face growing challenges in connecting an increasing number of sensors and actuators. Conventional approaches often rely on MCUs and custom software for each network node, resulting in greater system complexity, higher costs and longer development cycles. To overcome these obstacles, Microchip Technology has introduced its LAN866x family of 10BASE-T1S endpoint devices with Remote Control Protocol (RCP), extending Ethernet connectivity to the very edge of in-vehicle networks and enabling the vision of Software Defined Vehicles (SDVs).

The family endpoints are designed to simplify network integration by serving as bridges that translate Ethernet packets directly to local digital interfaces. Unlike traditional solutions, these endpoints are designed to be software-less, decreasing the necessity for node-specific software programming, streamlining silicon usage and physical footprint. With support for standards-based RCP protocols, the endpoints allow centralised control of edge nodes for data streaming and device management. By using a 10BASE-T1S multidrop topology, this solution supports an all-Ethernet, zonal architecture that enables reduced cabling, software integration and cost.

By removing the requirement for software development at every node, the endpoints are developed to reduce hardware and engineering costs, accelerate deployment timelines and simplify system architecture. The endpoints are ideal for critical automotive applications such as lighting, covering interior, front and rear headlamps, and audio systems and a wide range of control functions. In these applications, the endpoints supply direct bridging of Ethernet data to local digital interfaces controlling LED drivers for lighting, transmitting audio data to and from microphones and speakers, as well as controlling sensors and actuators over the network.

"With the addition of these RCP endpoint devices, Microchip's Single Pair Ethernet product line empowers designers to realise a true all-Ethernet architecture for Software-Defined Vehicles," said Charlie Forni, corporate vice president of Microchip's networking and communications business unit. "We are committed to delivering innovative solutions and supporting our customers with global technical expertise, comprehensive documentation and development tools to further reduce design complexity and help them bring vehicles to market faster."

The company's SPE solutions provide a wide range of transceivers, bridges, switches and development tools that enable reliable, high-speed data transmission over a single twisted pair cable, supporting 10BASE-T1S, 100BASE-T1, 1000BASE-T1 and higher speed grade standards. These solutions are developed to simplify wiring, reduce costs and streamline Ethernet connectivity for automotive, industrial and building automation applications, while ensuring interoperability and scalability.