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首页> 外文期刊>IEEE transactions on circuits and systems . I , Regular papers >Design of Magnetic Non-Volatile TCAM With Priority-Decision in Memory Technology for High Speed, Low Power, and High Reliability
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Design of Magnetic Non-Volatile TCAM With Priority-Decision in Memory Technology for High Speed, Low Power, and High Reliability

机译：高速，低功耗和高可靠性的记忆技术优先决策磁性非易失性TCAM设计

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摘要

Recently, various magnetic non-volatile ternary content-addressable memory (MNV-TCAM) cells that use magnetic tunnel junctions (MTJs) as storage units have been proposed to realize zero standby power. However, they still suffer from low reliability and high power consumption for search operation. In addition, the restrictions on the ordering of the TCAM array required by the using of the priority encoder to resolve the multiple match problem due to the 'X' results in large delay and high energy consumption for update operation. To address these issues, the novel MNV-TCAM cell is first proposed, aiming to achieve high-speed, low-power, and high-reliable search operation. In addition to the search data operation, it can realize a search length operation. By exploiting this search length operation, we then present circuit-level design of the MNV-TCAM with a priority-decision in memory technology, which can utilize the length information of matched words sorted in an arbitrary order to decide the highest-priority matched word by performing a three-phase search operation. It implies that the restrictions on the ordering can be eliminated, thus, improving the update speed and energy-efficiency. Finally, hybrid CMOS/MTJ simulations are performed to demonstrate its functionality and evaluate its performance in terms of search reliability, search speed, and search energy consumption.
机译：最近，已经提出了使用磁隧道结（MTJ）作为存储单元的各种磁性非易失性三元内容可寻址存储器（MNV-TCAM）单元以实现零待机功率。然而，它们仍然遭受低可靠性和高功耗进行搜索操作。此外，由于“X”，使用优先级编码器所需的TCAM阵列的排序限制，以解决“X”导致更新操作的大延迟和高能耗。为了解决这些问题，首先提出了新的MNV-TCAM单元，旨在实现高速，低功耗和高可靠的搜索操作。除了搜索数据操作之外，它还可以实现搜索长度操作。通过利用此搜索长度操作，我们将MNV-TCAM的电路级设计与内存技术的优先级决定呈现，可以利用以任意顺序排序的匹配词的长度信息来决定最高优先级匹配的单词通过执行三相搜索操作。它意味着可以消除对订单的限制，从而提高更新速度和节能。最后，执行混合CMOS / MTJ仿真以展示其功能，并在搜索可靠性，搜索速度和搜索能耗方面评估其性能。

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