| 基于PCI总线接口的SD主控制器的设计与实现 |
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| 引用本文： | 楚要钦,刘文学,张曼,林荣超.基于PCI总线接口的SD主控制器的设计与实现[J].航空计算技术,2010,40(4):96-99,107. |
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| 作者姓名： | 楚要钦 刘文学 张曼 林荣超 |
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| 作者单位： | 中国航空计算技术研究所,陕西,西安,710068 |
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| 摘 要： | SD卡已在消费型电子产品中得到了广泛应用,在显示控制系统中如何实现对SD卡的支持也变得很重要,而目前在机载计算机中占主流的PowerPC微处理中没有集成SD主控制器,因此研究和实现在PowerPC模块中对SD卡的读写访问就显得很有意义。在分析SD主控制器规范的基础上,采用功能模块化的方法,设计和实现了基于PCI总线接口,支持DMA传输的SD主控制器。测试结果表明,该SD主控制器数据传输稳定,并且具有硬件逻辑方便移植、重构的特点,可应用于PCI总线接口的嵌入式系统中。
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| 关 键 词： | PCI DMA SD主控制器 PowerPC |
Design and Implementation of SD Host Controller on the PCI Interface |
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| CHU Yao-qin,LIU Wen-xue,ZHANG Man,LIN Rong-chao.Design and Implementation of SD Host Controller on the PCI Interface[J].Aeronautical Computer Technique,2010,40(4):96-99,107. |
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| Authors: | CHU Yao-qin LIU Wen-xue ZHANG Man LIN Rong-chao |
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| Institution: | (Aeronautical Computing Technique Research Institute,Xi′an 710068,China) |
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| Abstract: | SD card is widely used in consumer electronic devices.Supporting SD card in Display Control system is very popular.But till now in airborne computer,the popular PowerPC microprocessor has not been integrated with SD host controller.So it is meaningful to study and realize the access of SD card in the PowerPC modules.This paper is armed at realizing the SD host controller on the PCI bus interface based on the SD host controller specification.Results indicate that the SD host controller is stable.And its logic code is easy to be transplanted and reconstructed.It can be used in embedded systems of PCI bus interface. |
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| Keywords: | PCI DMA PowerPC |
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