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An area compact soft error resident circuit for FPGA

机译:FPGA的区域紧凑型软错误驻留电路

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摘要

Due to reaching the nanoscale transistor size, effect of single event upset (SEU) to the memory has become conspicuous. In small device geometries, a single particle strike might affect multiple adjacent cells in a memory array resulting in a multiple bit upset (MBU). Traditional fault tolerance technologies such as triple modular redundancy (TMR) and error correcting code (ECC) occupy the large area and have vulnerability to MBU. In this research, we propose DMR based error correct circuit and employ a combination of proposed circuit and the interleaving technique to mitigate MBU. In addition, we explain soft error simulator developed to calculate bit interleaving distance. The results show that the area of proposed circuit is the smallest when we compare the proposed circuit, ECC based error correct circuit and TMR. Simulation results show that the interleaving distance which can conceal all MBU patterns is 4.
机译:由于达到了纳米级晶体管的尺寸,单事件翻转(SEU)对存储器的影响变得显而易见。在小型设备中,单个粒子撞击可能会影响内存阵列中的多个相邻单元,从而导致多位翻转(MBU)。三层模块化冗余(TMR)和纠错码(ECC)等传统的容错技术占据了很大的面积,并且容易受到MBU的攻击。在这项研究中,我们提出了一种基于DMR的纠错电路,并结合了提出的电路和交织技术来减轻MBU。另外,我们解释了开发用于计算比特交织距离的软错误模拟器。结果表明,与拟议电路,基于ECC的纠错电路和TMR进行比较,拟议电路面积最小。仿真结果表明,可以掩盖所有MBU图样的交织距离为4。

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