A systematic approach to software peripherals for embedded systems

The continued growth of microprocessors' performance and the need for better CPU utilization, has led to the introduction of the software peripherals' approach: By this term we refer to software modules that can successfully emulate peripherals that, until now, were traditionally implement...

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Bibliographic Details
Published in9th International Symposium on Hardware/Software Codesign pp. 140 - 145
Main Authors Lioupis, D., Papagiannis, A., Psihogiou, D.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2001
Subjects
Application software
Cost function
Design optimization
Embedded software
Embedded system
Hardware
Microprocessors
Product design
Software performance
Software systems
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ISBN1581133642
9781581133646
DOI10.1109/HSC.2001.924665

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Summary:The continued growth of microprocessors' performance and the need for better CPU utilization, has led to the introduction of the software peripherals' approach: By this term we refer to software modules that can successfully emulate peripherals that, until now, were traditionally implemented in hardware. Software implementations offer great flexibility in product design and in functional upgrades, while they have high contribution in the cost/performance ratio optimization. We focus on embedded applications, where the cost and the short time to market are the leading issues. In this paper, we study the hardware and software requirements for developing a generic microprocessor with support for software peripherals. Additionally, we present three software peripherals, a Universal Asynchronous Receiver Transmitter, a keypad controller and a dot matrix LCD controller, and we analyze their impact in CPU occupation. Finally, we explore the impact of using a software UART on system power dissipation.
ISBN:1581133642
9781581133646
DOI:10.1109/HSC.2001.924665