DESwitch Hermes 3/1 BRR

The DESwitch Hermes 3/1 BRR is a combined switch ECU which is designed for the evaluation of multiple communication standards including Audio-Video Bridging (AVB), Time-Sensitive Networking (TSN) and Time-Triggered Ethernet (SAE AS6802). With these technologies you can evaluate the convergence of control traffic over Ethernet, including safety applications and in-vehicle backbone architectures.

Product Benefits

  • One Ethernet switch hardware for evaluation of different technologies including AVB, TSN and Time-Triggered Ethernet in combination with BroadR-Reach® PHY
  • Platform for evaluation of NXP SJA1105T Ethernet switch chip 
  • Enables customized evaluation projects using the switch as an ECU with I/Os and CAN, FlexRay and Ethernet interfaces

At the heart of this versatile product is the NXP SJA1105T chip. The switch chip enables networks with standard Ethernet for best effort traffic, Quality of Service (QoS) for using VLANs and priorities, AVB for clock synchronization and traffic shaping, TSN for time-aware shaping and Time-Triggered Ethernet for time-triggered communication and fault-tolerant clock synchronization.

The product offers 3 x BroadR-Reach® physical layer interfaces that enable 100 Mbit/s full-duplex communication over unshielded twisted single pair (UTSP) cabline as well as 1 x 1 Gbit/s port.

The DESwitch Hermes 3/1 BRR also integrates a powerful Infineon AURIX CPU running AUTOSAR 4.2.1 and provides digital and analog I/Os plus CAN, FlexRay and Ethernet interfaces. By integrating this control functionality, the Hermes switch will enable a wide range of in-vehicle projects for diagnostics, control applications, infotainment and advanced driver assistance systems (ADAS).

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Partner Statement

“The Hermes Deterministic Ethernet Switch from TTTech serves as a platform for evaluating the functionality of our SJA1105T Ethernet switch IC, making this another stepping stone within our valuable cooperation.“

Günter Sporer, Segment Director Ethernet at NXP Semiconductors