Efficient closely-coupled integration of AES coprocessor with LEON3 processor


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Bansal, R and Karmakar, A (2019) Efficient closely-coupled integration of AES coprocessor with LEON3 processor. In: 23rd International Symposium on VLSI Design Test (VDAT-2019), July 04-06, 2019, IIT Indore, India.

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This paper proposes an efficient closely-coupled method for integrating the widely used Advanced Encryption Standard (AES) hardware as a coprocessor IP core in the LEON3 processor-based System-on-Chip (SoC) design. As AES is increasingly being used in Internet of Things (IoT) devices to secure transmission of sensitive data, this method can be used to reduce the energy consumption in embedded applications. The closely-coupled method proposed in this paper combines the benefits of both the traditional tightly-coupled and industry prevalent bus-coupled approaches. The method provides higher performance along with portability to address the demand of higher processing power and reduced time-to-market. A maximum of 10% reduction in number of clock cycles was achieved in our experiments which translates to significant en-ergy saving compared to industry prevalent bus-coupled hardware coupling method.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: AES, closely-coupled, LEON3, SPARCv8, SoC, coprocessor.
Subjects: Semiconductor Devices > IC Design
Divisions: Semiconductor Devices
Depositing User: Mr. Jitendra Nath Bajpai
Date Deposited: 27 Jul 2021 09:33
Last Modified: 27 Jul 2021 09:33
URI: http://ceeri.csircentral.net/id/eprint/463

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