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首页> 外文期刊>IEEE Journal of Solid-State Circuits >A 28-nm Automotive Flash Microcontroller With Virtualization-Assisted Processor Supporting ISO26262 ASIL D
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A 28-nm Automotive Flash Microcontroller With Virtualization-Assisted Processor Supporting ISO26262 ASIL D

机译:带有虚拟化辅助处理器的28纳米汽车闪光微控制器支持ISO26262 ASIL D.

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摘要

In the autonomous driving era, automotive architecture has been rapidly progressing toward electronic control unit (ECU) integration and centralization. Advanced vehicle control is becoming increasingly important for safe driving. It requires microcontroller unit (MCU) integration, the highest automotive safety integrity level (ASIL), and network performance improvement. A 28-nm 600-MHz automotive flash MCU has been developed for next-generation automotive architecture. The MCU for vehicle control integrates three key features: a virtualization-assisted processor (VAP) for functional safety, a built-in self-test in the field (field-BIST) at a sleep resume (SR) BIST for functional safety, and a serial gigabit media independent interface (SGMII) for the in-vehicle network. The VAP helps the hypervisor to realize real-time virtualization to execute several different virtual machines without interference. The SR-BIST realizes random hardware failures per hour of 10(-8) in various automotive applications. In the SGMII circuit, we used 5-V transistors for high reliability despite their narrow bandwidth. The automotive MCU satisfies the ISO26262 ASIL D system requirements with a low power consumption of 0.52 W. The VAP can realize the severe automotive control hard real time capability.
机译:在自动驾驶时代,汽车架构一直迅速发展电子控制单元(ECU)集成和集中。先进的车辆控制对于安全驾驶越来越重要。它需要微控制器单元(MCU)集成,最高的汽车安全完整性(ASIL)和网络性能改进。为下一代汽车架构开发了28纳米600 MHz汽车Flash MCU。用于车辆控制的MCU集成了三个关键特征:虚拟化辅助处理器(VAP),用于功能安全,睡眠简历(SR)BIST的字段(现场-BIST)内置的自检,用于功能安全性,以及用于车载网络的串行千兆媒体独立接口(SGMII)。 VAP帮助管理程序实现实时虚拟化以在不干扰的情况下执行几种不同的虚拟机。 SR-BIST在各种汽车应用中实现每小时10(-8)的随机硬件故障。在SGMII电路中,我们使用5-V晶体管,尽管它们的带宽窄,但是尽管有窄的带宽。汽车MCU满足ISO26262 ASIL D系统要求,具有0.52W的低功耗。VAP可以实现严重的汽车控制硬实时能力。

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