Design and Implementation of Low Power ALU for ARM9 Data Processing Instruction

• Main Authors: Yu-Yin Sung, 宋郁茵
• Other Authors: Robert C. Chang
• Format: Others
• Language: en_US
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/25033723383700134272

碩士 === 國立中興大學 === 電機工程學系 === 92 === Due to the increasing demand of high-performance portable equipments, how to reduce power consumption has become an important issue in the design of integrated circuits. The arithmetic logic unit (ALU) is a main element of CPU. It performs the arithmetic and logic operations required by CPU instructions, and dissipates much of the power consumption in CPU. If we reduce the power consumption of ALU, the power consumption of CPU will be decreased effectively. Since the system consume lots of power on the clocking, the skills of the double-edge trigger and low swing are used to reduce the power consumption: the double-edge trigger circuit is achieved by the design of circuit architecture and the low swing technique is accomplished by using the multi-Vt technique. In this thesis, we proposed a novel and extremely low power consumption register. The power consumption of the proposed register is reduced by at least 38% compared to the other improved registers. The proposed register is used to implement the ALU for ARM9 data processing instructions so that lower power consumption is achieved.