journal6 ›› 2008, Vol. 29 ›› Issue (1): 79-82.

• Physics and electronics • Previous Articles     Next Articles

Application of I2C Bus in Serial Extension of Microcontroller


  1. (Changsha  Normal  College,Changsha    410100,China)
  • Online:2008-01-25 Published:2012-05-26

Abstract: On the basis of introduction of the structure,principle and mode of data trassmission of I2C bus,the paper summarizes the advantages of I2C bus.As for the microcontroller without I2C bus interface,it can use the microcontroller's I/O interface to simulate I2C bus,which provides a simple way to realize serial extension.According to the application of I2C bus to the temperature controlling system,the design of hardware and the software program in assemble language are introduced in detail.

Key words: I2C bus, microcontroller, DS1624

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