Can Automotive Ethernet contribute to the vehicle weight-loss plan?: Page 4 of 4

November 02, 2020 //By Klaus Neuenhüskes, Toshiba Electronics Europe
Can Automotive Ethernet contribute to the vehicle weight-loss plan?
The automotive cable harness is regularly claimed to be the third heaviest component in the vehicle, as well as the third most expensive. It combines a multitude of power cabling, standardised in-vehicle networks, and wiring for proprietary network protocols or bus systems. Without making substantial changes to the vehicle’s E/E Architecture, the only remaining approach to reducing weight is to move away from copper wiring to lighter alternatives.

In addition to common serial interfaces, such as the two UARTs, I2C and SPI, a QSPI peripheral provides an interface for booting the device. The TDM/I2S interface provides a full-duplex TDM port with support for multi stream operating as a clock master (TDM/I2S) or clock slave (TDM only) supporting 24-bit audio at up to 192 kHz.

Summary

After all the hard work of advisory boards and committees, Ethernet has been extended to fulfil the harsh demands of in-vehicle networking. With plenty of bandwidth, guaranteed latencies, and support for specifying presentation time, this veteran technology is again revitalised and ready for the emerging demands of ADAS and autonomous driving. The TC9562 tackles the challenges of in-vehicle networking by offering developers a customisable solution for simpler cost-optimised nodes that are more limited in their functionality, such as audio amplifiers, as well as a compact solution that fulfils the requirements of larger ECUs, requiring Automotive Ethernet support alongside the chosen SoC.

 

About the author: 

Klaus Neuenhüskes is Senior Manager, Solution & Standardization in Semiconductor Marketing at Toshiba Electronics Europe. Klaus holds a degree in Electrical Engineering and previously held positions at OKI Electric Europe and NEC Electronics.

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