Cognitive Bus Coding Scheme for Inter-Chip Communications of Deep Learning Accelerator Chiplet on Low-cost Si and Glass Interposer

Yu Hong Chang, Tourangbam Harishore Singh, Po Tsang Huang

研究成果: Conference contribution同行評審

1 引文 斯高帕斯(Scopus)

摘要

In the present Artificial Intelligence (AI) hardware research, interposer based multi-chip Deep Learning Accelerator (DLA) system is one of the main technology. Silicon (Si) interposer is the main key in the emerging 2.5D integration process. However, signal integrity is limited by the capacitive crosstalk and signal reflection can lead to notch attack in some frequency bands. In this paper, two new bus coding schemes are proposed to improve signal integrity, reducing the crosstalk to increase bandwidth for on-silicon-interposer and on-glass-interposer inter-chip data communications. For silicon interposer, a joint code division multiple access and crosstalk avoidance coding (Joint CDMA/CAC) scheme is proposed to reduce the capacitive crosstalk effect for fine-pitch interconnects. The eye diagram and bit error rate are both improved, and the average crosstalk effect is reduced by half. Also, a cognitive bus coding scheme is proposed by spread spectrum and channel learning for glass interposer. The proposed cognitive bus coding increases the total data bandwidth under frequency notches based on the channel condition for modulation.

原文English
主出版物標題Proceedings - 2022 IEEE 15th International Symposium on Embedded Multicore/Many-Core Systems-on-Chip, MCSoC 2022
發行者Institute of Electrical and Electronics Engineers Inc.
頁面232-238
頁數7
ISBN(電子)9781665464994
DOIs
出版狀態Published - 2022
事件15th IEEE International Symposium on Embedded Multicore/Many-Core Systems-on-Chip, MCSoC 2022 - Penang, 馬來西亞
持續時間: 19 12月 202222 12月 2022

出版系列

名字Proceedings - 2022 IEEE 15th International Symposium on Embedded Multicore/Many-Core Systems-on-Chip, MCSoC 2022

Conference

Conference15th IEEE International Symposium on Embedded Multicore/Many-Core Systems-on-Chip, MCSoC 2022
國家/地區馬來西亞
城市Penang
期間19/12/2222/12/22

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