Renesas' R-Car X5H SoC, which meets ASIL B/D, provides scalable automotive compute.
electronicdesign.com, Dec. 27, 2024 –
The R-Car X5H family is a fifth-generation automotive system-on-chip (SoC) developed by Renesas that supports ASIL B/D capabilities as well as a neural processing unit (NPU). Built on the latest 3-nm chip technology, enhanced versions of the SoC come courtesy of chiplet technology. I talked with Cyril Clocher, Senior Director of the Automotive Product Line, about the details.
High-Performance Compute for Automotive Safety-Critical Apps
The basic R-Car X5H includes up to 32 Arm Cortex-720AE applications cores capable of delivering 1000K DMIPS of performance (Fig. 1). Real-time support is provided by half-a-dozen Arm Cortex-R52 cores with dual lockstep capability. These can deliver 60K DMIPS of performance while meeting ASIL B and ASIL D certification requirements.
There are general-purpose DSP cores, too, along with specialized accelerators such as the image signal processor (ISP) and dense-optical-flow (DOF) hardware accelerator (HWA) for handling multi-megapixel camera video streams.
The on-chip NPU can deliver up to 400 TOPS, while the on-chip GPU generates 4 TFLOPS of performance.
The chip includes an 8-port Ethernet switch, USB 2/3 ports, and PCI Express (PCIe) that supports Gen 4 and Gen 6. Also in the mix are an on-chip dedicated NPU and GPU. The GPU can drive a car's display panel while the NPU handles artificial-intelligence and machine-learning (AI/ML) models...