Low Power System on Chip Tailored for Central Processing in ADAS and Automated Driving Solutions

Published  March 8, 2022   0
L Lakshita
Author
R-Car V4H System on Chip (SoC)

Renesas Electronics Corporation has announced the new R-Car V4H system on chip (SoC) that achieves deep learning performance of up to 34 TOPS, enabling high-speed image recognition and processing of surrounding objects by automotive cameras, radar, and lidar. Designed for central processing in advanced driver-assistance (ADAS) and automated driving (AD) solutions, this new SoC supports surround view and automatic parking functions with impressive 3D visualization effects such as very realistic views.

This SoC development process targets ASIL-D systematic capability for all safety-relevant IP and the signal processing portion of this SoC is expected to achieve ASIL-B and D metrics for the real-time domain. The R-Car V4H features a high level of integration which allows customers to develop cost-competitive, single-chip, ADAS electric control units (ECUs). These control units may support driving systems appropriate for automated driving Levels 2+ and Level 3, including full NCAP 2025 features. 

Key Features

  • Four Arm Cortex-A76 at 1.8 Ghz for a total of 49KDMIPS of general compute for ADAS / AD applications
  • Three lockstep Arm Cortex-R52 cores at 1.4 Ghz, for a total of 9KDMIPS to support ASIL D real-time operation and eliminate the need for external microcontrollers
  • Dedicated Deep Learning & Computer Vision I/Ps with overall performance of 34 TOPS
  • Image Signal Processor (ISP) with parallel processing for machine and human vision
  • Image renderer (IMR) for fisheye distortion correction or other mathematical operation
  • Graphic processor Unit (GPU) AXM-8-256 @ 600MHz, for a total of over 150 GFLOPS
  • Dedicated automotive Interfaces: CAN, Ethernet AVB, TSN and FlexRay
  • Two fourth generation PCIe interfaces

Moreover, this SoC can be used in combination with the RAA271041 pre-regulator and the RAA271005 PMIC optimized for cars.  This enables a highly reliable power supply for the R-Car V4H and peripheral memories from the 12V supply of the vehicle battery. These features enable low power operation while targeting ASIL-D compliance for systematic and random hardware faults at a very low BOM cost.