标题： relOBI：一种用于紧密耦合片上通信的可靠低延迟互连 显示英文标题

标题： relOBI: A Reliable Low-latency Interconnect for Tightly-Coupled On-chip Communication

摘要： 片上通信是现代系统级芯片（SoC）的关键组成部分，使处理器核心能够与内存和外设进行交互。 在辐射密集的环境中，互连需要特别注意，因为SoC互连中的任何软错误都可能导致整个SoC的功能故障。 本研究提出了relOBI，这是开放总线接口（OBI）的一个扩展，结合了关键握手信号的三模冗余（TMR）和其它信号的纠错码（ECC）保护。 实现并测试了可靠的交叉开关，与无冗余基线相比，注入单点故障的可靠性从34.85%提高到零，面积增加了2.6$\times$。 面积开销比文献中报道的细粒度三重复制和投票低1.8$\times$。 显示英文摘要

摘要： On-chip communication is a critical element of modern systems-on-chip (SoCs), allowing processor cores to interact with memory and peripherals. Interconnects require special care in radiation-heavy environments, as any soft error within the SoC interconnect is likely to cause a functional failure of the whole SoC. This work proposes relOBI, an extension to the Open Bus Interface (OBI) combining triple modular redundancy (TMR) for critical handshake signals with error correction codes (ECC) protection on other signals. Implementing and testing the reliable crossbar shows improved reliability to injected single faults from a vulnerability of 34.85 % to zero compared to the irredundant baseline, with an area increase of 2.6 $\times$. The area overhead is 1.8 $\times$ lower than that reported in the literature for fine-grained triplication and voting.