| 基于C8051F064混合信号微控制器的SMBus应用 |
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| 引用本文： | 章彧,陆斌,李军.基于C8051F064混合信号微控制器的SMBus应用[J].电力自动化设备,2007,27(2):118-120,127. |
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| 作者姓名： | 章彧 陆斌 李军 |
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| 作者单位： | 南昌工程学院,电气与电子工程系,江西,南昌,330099;张家港市供电公司,江苏,张家港,215600;中国人民解放军工程兵指挥学院,军事指挥系,江苏,徐州,221004 |
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| 摘 要： | C8051F064混合信号微控制器具有片内SMBus接口,该接口是双线双向串行总线,并可工作在主方式或从方式.阐述了SMBus协议,有从主发送器到被寻址的从接收器和被寻址的从发送器到主接收器的2种数据传输类型,且都由主器件启动,并提供串行时钟.介绍了C8051F064中实现SMBus主发送方式和主接收方式的工作时序,说明了SMBus串口的访问和控制是通过5个特殊功能(控制、时钟速率、地址、数据和状态)寄存器实现.结合JW3010直流信号源,介绍了SMBus的应用.
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| 关 键 词： | SMBus C8051F064 混合信号 微控制器 |
| 文章编号： | 1006-6047（2007）02-0118-03 |
| 收稿时间： | 2006-05-08 |
| 修稿时间： | 2006-05-082006-08-06 |
SMBus used in C8051F064 mixed signal MCU |
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| ZHANG Yu,LU Bin,LI Jun.SMBus used in C8051F064 mixed signal MCU[J].Electric Power Automation Equipment,2007,27(2):118-120,127. |
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| Authors: | ZHANG Yu LU Bin LI Jun |
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| Affiliation: | 1. Nanchang Institute of Technology,Nanchang 330099,China; 2. Zhangjiagang Power Supply Company,Zhangjiagang 215600,China; 3. Department of Military Command,CPLA Engineer Command College,Xuzhou 221004,China |
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| Abstract: | C 8051F 064 mixed signal MCU(Micro Control Unit) is configured with an interior SMBus interface,which is a two-wire & bi-directional serial bus and operates in master or slave mode.SMBus protocol is elaborated and two types of data transfer are included:from master transmitter to addressed slave receiver and vice versa.The master device initiates both data transfer types and provides serial clock pulses.The master transmitter sequence and master receiver sequence of SMBus interface in C 8051F 064 are introduced,as well as functions of five registers for serial access and control are described:control register,clock rate register,address register,data register and status register.Combined with JW 3010 DC Signal Generator,the application of SMBus is introduced. |
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| Keywords: | SMBus C 8051F064 mixed signal MCU |
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