Yet Marvell often cooperates with large manufacturers on advanced products. Marvell’s Ethernet switches have now evolved to the third generation. The 88EA6321 is an early product of Marvell. It often acts as the bridge between the main processor and the MCU, namely Nvidia Xavier and TI TMS570LC4357. The switch offers remote management capabilities, providing easy access and configuration of the device. The 7-port Ethernet switch offers 2 integrated IEEE 10/100/1000BASE-T/TX/T ports, 2x RGMII/xMII (2 ports can be configured to be 1GMII) ports, and 1 SGMII / SerDes port. Marvell’s first-generation Automotive Brightlane™ Ethernet switch, 88EA6321, is a 7-port Ethernet gigabit capacity switch that is fully compliant with IEEE802.3 automotive standard with Audio/Video bridging capabilities and supports Energy Efficient Ethernet for reduced power consumption. Next to 88SE9171 is a Winbond W25Q64JV NOR Flash with 64Mb capacity, supposed to store a simple hard disk driver. Most development boards don’t carry SATA interface, and usually use USB interface. On the left is a hard disk SATA interface, using Marvell 88SE9171 chip to convert SATA to PCIe interface. LiDAR that needs to upload large amounts of data uses Ethernet interface.Ībove the DJI ADAS domain controller carrier board MCU are two Ethernet switches, namely, Marvell 88EA6321. Radar generally adopts CAN/FD communication. Camera interface often uses protocols like GMSL, LVDS and FPDLink. It is the most important part to ensure the domain controller to achieve ASIL-C/D certification.ĪDAS domain controller needs abundant interfaces (video interface, Ethernet interface, CAN interface, etc.) to connect various sensor devices, including: camera, LiDAR, radar, ultrasonic radar, integrated navigation, IMU, V2X module, etc. In the second half of 2024, Infineon planned to start mass production of the new AURIX TC4x family of 28 nm microcontrollers (MCUs) for high volume data throughput applications such as advanced driving assistance systems, various domain controllers, new energy and gateway systems. For example, the DJI ADAS domain controller engineering prototype MCU uses TI TMS570LC4357, a chip which was launched in 2014 and has not passed ASIL certification but only AEC Q-100 certification. The mainstream MCUs from Renesas, Infineon and NXP all reach the ASIL-D level. Generally, the MCUs for ADAS domain controllers are provided by Infineon or NXP, especially Infineon TC297X/397X series with a high market share. After the depth map, the freespace needs to be calculated, mainly by GPU. Yet it still needs time to explore for better performance.ĭepth map is often calculated by CPU. For stereo camera companies, the most core software asset is stereo matching algorithms, most of which are for semi-global matching. The optical flow effect of stereo camera is much better than mono camera. Both NVIDIA Xavier and Orin incorporate stereo camera hardware acceleration, allowing for direct hardwire output of disparity maps, as well as optical flow acceleration module. In terms of CPU selection, to enable their domain controllers to achieve L2+ high-level ADAS functions such as NOP/NGP, all vendors are pursuing large computing power chips, among which Nvidia Xavier and Orin are most used. This paper will briefly analyze the key components of ADAS domain controller, including CPU, MCU, storage, and interface. 23, 2023 (GLOBE NEWSWIRE) - announces the release of the report "ADAS Domain Controller Key Component Trends Report,2022".
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