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http://dx.doi.org/10.6109/jkiice.2012.16.1.107

Design of a GPIO Unit for Bluetooth Embedded Systems  

Moon, San-Gook (목원대학교)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.16, no.1, 2012 , pp. 107-112 More about this Journal
Abstract
In this contribution, we designed a general purpose input/output (GPIO) suitable for embedded systems, especially for Bluetooth baseband. Proposed architecture is compatible for the APB bus in AMBA bus architecture. General purpose I/O should be used as multi-functional and versatile interrupt sources. We considered the edge-sensitive mode as well as the level-sensitive mode for acquiring the interrupt sources. Also, we provided an option to select the operation polarity for flexible application to the embedded systems. The designed GPIO module was automatically synthesized, placed, and routed. The proposed GPIO was implemented through the Altera FPGA and well operated at 25MHz clock frequency.
Keywords
Embedded Systems; Baseband; GPIO;
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  • Reference
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