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Introduction

The exponential growth of the wireless communications industry has created a multitude of new products with advanced features that allow users to stay in touch with every aspect of their lives wherever they may be. These new products are quite diverse, require more system performance with no exceptions to power conservation and have short product life cycles. Features such as video-teleconferencing, global positioning and internet access requires these systems to be flexible and capable of understanding a variety of digital wireless standards currently defined by the USA, Europe, Asia-Pacific and Japan.

For example, there is a growing need for cellular baseband transceivers that accommodate GSM as well as CDMA standards at a low cost. In order to accomplish this, a micro-architecture that couples easily to DSPs, ASICs, standard peripherals and memory devices is needed. This micro-architecture must be programmable in C or C++, supported by the most popular real-time operating systems, and have a high instance of code re-usability for rapid prototype development with a rich development tool set.

The focus of this paper is to discuss the low power features of the MęCORE architecture and describe a dual processor solution for a TDMA baseband transceiver which is currently in production. The key features of the 1.8 volt DSP56652 cellular baseband processor, currently designed into the iDEN i1000 phone, will be discussed highlighting the integration of smart peripherals to reduce overall power consumption.

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