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Zonal Controller

A complete automotive TSN solution — integrating a TSN-capable Ethernet switch, Root of Trust security, and IEEE 1722 protocol encapsulation for audio, video and legacy serial communications in one IP core.

Overview

A critical network node for next-generation Software Defined Vehicles — connecting sensors and actuators to the central compute ECU over a TSN Ethernet backbone.

The Automotive Zonal Controller is designed to support the zonal architecture approach in next-generation Software Defined Vehicles (SDV). This architecture facilitates efficient in-vehicle data distribution while reducing wiring complexity, cost, and weight — streamlining vehicle design and manufacturing. It plays an essential role in delivering real-time, reliable, and scalable communication for ADAS, autonomous driving, and electrified powertrain systems.

The Comcores Zonal Controller IP integrates a TSN-capable Ethernet switch, a Root of Trust security module, and a transport protocol encapsulation system based on IEEE 1722 for handling audio, video, and legacy serial communications. Acting as a gateway, it bridges audio (I2S), video (CSI-2, SERDES), and serial peripherals (SPI, I2C, CAN, LIN) with the in-vehicle Ethernet backbone.

The solution connects to embedded processor systems through an AXI Memory-Mapped interface for Ethernet frame exchange and an AXI4-Lite interface for management and configuration.

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Evaluate in Hardware

Omni500 Platform
Configurable evaluation and prototyping platform for deterministic Ethernet.

Key Capabilities

TSN Ethernet switch
– Up to 16×10M–2.5G + 2×10G ports, full TSN
IEEE 1722 encapsulation
–Audio, video and serial protocol transport
Root of Trust
–Secure boot, key storage, TRNG, tamper resistance
Gateway interfaces
–I2S, CSI-2, SPI, I2C, CAN, LIN, ISELED
Optional MACsec
– IEEE 802.1AE — multiple SecYs per port
Time synchronisation
–IEEE 802.1AS / 802.1ASds — wall clock + phase adjust

Target Markets

Software Defined Vehicles

Zonal architecture for next-generation SDVs — reducing wiring while delivering deterministic real-time Ethernet.

ADAS & Autonomous Driving

Reliable, scalable communication for sensor fusion, camera and radar data distribution across vehicle zones.

Electrified Powertrains

Safety-critical aircraft systems requiring redundant, time-synchronised real-time communication.

Secure Vehicle Networks

Hardware Root of Trust and optional MACsec for authenticated, encrypted in-vehicle communication.

Block Diagram

Zonal Controller Grey

Zonal Controller

Simplified architecture, the full diagram with all interfaces and options available in the datasheet.

Technical Specifications

Ethernet switch

Physical ports
Up to 16 at 10M / 100M / 1G / 2.5G, plus 2 at 10 Gbps
PHY interfaces
MII, RMII, GMII, RGMII, SGMII, USGMII, XFI
Single Pair Ethernet
10BASE-T1S / T1L, 100/1000BASE-T1, 2.5G/5G/10GBASE-T1
PHY management
Built-in MDIO controller
VLAN / QoS
IEEE 802.1Q — up to 8 traffic classes per port

TSN & traffic management

Traffic shaping
Time-Aware (TAS) 802.1Qbv, Credit-Based (CBS) 802.1Qav, Asynchronous (ATS)
Frame preemption
IEEE 802.1Qbu — higher priority frames interrupt lower-priority traffic
Reliability
Frame Replication & Elimination — IEEE 802.1CB
Stream policing
Per-stream filtering & policing — IEEE 802.1Qci
Time sync
IEEE 802.1AS + 802.1ASds — built-in wall clock and phase adjuster

IEEE 1722 gateway

Audio
3-wire I2S interface — data encapsulated into Ethernet frames per IEEE 1722
Video
MIPI CSI-2 direct, or SERDES (ASA Motion Link, e*Link III, FPD-Link III) — transported via IEEE 1722
Serial peripherals
SPI and I2C — sensors and actuators mapped to/from Ethernet frames via IEEE 1722
Legacy protocols
CAN bus, LIN bus, ISELED, ISELED Light and Sensor (ILAS)
Automotive protocols
CAN, LIN, Intelligent Smart Embedded LED (ISELED)

Host integration

Frame interface
AXI Memory-Mapped
Management interface
AXI4-Lite

Security

Root of Trust
Secure boot, secure storage, key generation, cryptographic RNG, tamper resistance
MACsec (optional)
IEEE 802.1AE — port authentication, encryption, integrity; multiple SecYs per port

Technical Support & Deliverables

Technical Support

Access to JIRA support system and direct engineer support are part of our support package to help customers during their developement and integration phases.

Deliverables

Comcores IP includes everything needed to integrate, verify and deploy including:


Bespoke RTL as source code or encrypted code

Solid documentation, including User Manual and Release Note

Simulation Environment, including Testbed, Test cases and Test Script

Programming Register Specification

Timing Constraints in Synopsys SDC format

Synopsys SGDC Files (optional)

Synopsys Lint, CDC and Waivers (optional)

Omni500 – Configurable evaluation and prototyping platform

The Omni500 is a configurable evaluation and prototyping platform for deterministic Ethernet systems from 10 Mb/s to 1 Gb/s. It combines TSN networking, multi-speed Ethernet interfaces, and field buses into one compact platform for validation, development, and system integration.

Omni500 is built on combining an AMD Artix UltraScale+ FPGA, Linux-capable control processor, and a comprehensive set of interfaces.

Built for engineers who need deterministic results. The platform handles all real-time packet processing and timestamping in hardware, while the Linux control layer provides the flexibility of a full software stack — Web GUI, REST API, and SDK included.

Omni500 Product image

Related Products

Ethernet TSN Bridge

Complete subsystem that combines a TSN capable Ethernet switch, DMA engine and IEEE 802.1AS time synchronisation.

Ethernet Controller

High-performance Ethernet connectivity for scalable, low-latency networking applications.

TSN End Station

Ultra Compact solution that can interface with nearly any microcontroller or embedded processor system.

Blogs & Whitepapers

What is TSN?

What is TSN?

TSN, or Time-Sensitive Networking, is a technology based on the IEEE 802.1Q standard. It has evolved from the Ethernet technology currently used to carry all types of traffic, for which ethernet was not originally intended, such as multiple data flows with different...

read more