Date of Graduation

5-2018

Document Type

Thesis

Degree Name

Bachelor of Science in Computer Engineering

Degree Level

Undergraduate

Department

Computer Science and Computer Engineering

Advisor/Mentor

Di, Jia

Committee Member/Reader

Parkerson, James

Committee Member/Second Reader

Andrews, David

Abstract

Digital integrated circuits (ICs) have become progressively complex in their functionality. This has sped up the demand for asynchronous architectures, which operate without any clocking scheme, considering new challenges in the timing of synchronous systems. Asynchronous ICs have less stringent environmental constraints and are capable of maintaining reliable operation in extreme environments, while also enjoying potential benefits such as low power consumption, high modularity, and improved performance. However, when the traditional bus architecture of synchronous systems is applied to asynchronous designs, handshaking protocols required for asynchronous circuit operation result in significantly increased power consumption, offsetting the low power benefit of asynchronous designs. In this thesis, NULL Convention Logic is used to implement two data transfer alternatives to the bus, and their performance is compared to that of the prevailing bus architecture. According to the results, both of these proposed architectures demonstrate power-saving qualities while sacrificing area, indicating potential utilization in power-constrained applications where speed is not a prioritized design constraint, as in Internet of Things (IoT) devices.

Keywords

Asynchronous; Low-power; communication; bus

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