| 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 |
| .SMBus used in C8051F064 mixed signal MCU[J].Electric Power Automation Equipment,2007,27(2):118-120,127 |
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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. |
| 关键词: SMBus C8051F064 混合信号 微控制器 |
| DOI： |
| 分类号:TP368.1 |
| 基金项目: |
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| SMBus used in C8051F064 mixed signal MCU |
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ZHANG Yu LU Bin LI Jun
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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. |
| Key words: SMBus C 8051F064 mixed signal MCU |
