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To expand the scale of spiking neural networks (SNNs), an interface circuit that supports multiple SNN cores is essential. This circuit should be designed using an asynchronous approach to leverage characteristics of SNNs similar to those of the human brain. However, the absence of a global clock presents timing issues during implementation. Hence, we propose an intermediate latching template to establish asynchronous nonlinear connectivity with multipipeline processing between multiple SNN cores. We design arbitration and distribution blocks in the interface circuit based on the proposed template and fabricate an interface circuit that supports four SNN cores using a full-custom approach in a 28-nm CMOS (complementary metal–oxide–semiconductor) FDSOI (fully depleted silicon on insulator) process. The proposed template can enhance throughput in the interface circuit by up to 53% compared with the conventional asynchronous template. The interface circuit transmits spikes while consuming 1.7 and 3.7 pJ of power, supporting 606 and 59 Mevent/s in intrachip and interchip communications, respectively.

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기사명 저자명 페이지 원문 목차
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Metaheuristic optimization scheme for quantum kernel classifiers using entanglement-directed graphs Yozef Tjandra, Hendrik Santoso Sugiarto p. 793-805

Free-space quantum key distribution transmitter system using WDM filter for channel integration Minchul Kim, Kyongchun Lim, Joong-Seon Choe, Byung-Seok Choi, Kap-Joong Kim, Ju Hee Baek, Chun Ju Youn p. 806-816

PF-GEMV : utilization maximizing architecture in fast matrix–vector multiplication for GPT-2 inference Hyeji Kim, Yeongmin Lee, Chun-Gi Lyuh p. 817-828

SNN eXpress : streamlining low-power AI-SoC development with unsigned weight accumulation spiking neural network Hyeonguk Jang, Kyuseung Han, Kwang-Il Oh, Sukho Lee, Jae-Jin Lee, Woojoo Lee p. 829-838

XEM : tensor accelerator for AB21 supercomputing artificial intelligence processor Won Jeon, Mi Young Lee, Joo Hyun Lee, Chun-Gi Lyuh p. 839-850

NEST-C : a deep learning compiler framework for heterogeneous computing systems with artificial intelligence accelerators Jeman Park, Misun Yu, Jinse Kwon, Junmo Park, Jemin Lee, Yongin Kwon p. 851-864

Mixed-mode SNN crossbar array with embedded dummy switch and mid-node pre-charge scheme Kwang-Il Oh, Hyuk Kim, Taewook Kang, Sung-Eun Kim, Jae-Jin Lee, Byung-Do Yang p. 865-877

Asynchronous interface circuit for nonlinear connectivity in multicore spiking neural networks Sung-Eun Kim, Kwang-Il Oh, Taewook Kang, Sukho Lee, Hyuk Kim, Mi-Jeong Park, Jae-Jin Lee p. 878-889

AONet : attention network with optional activation for unsupervised video anomaly detection Akhrorjon Akhmadjon Ugli Rakhmonov, Barathi Subramanian, Bahar Amirian Varnousefaderani, Jeonghong Kim p. 890-903

Multistage interference cancellation for cyclic interleaved frequency division multiplexing G. Anuthirsha, S. Lenty Stuwart p. 904-914

Air quality index prediction using seasonal autoregressive integrated moving average transductive long short-term memory Subramanian Deepan, Murugan Saravanan p. 915-927

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