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一、概述以上各节已经介绍了许多不同的接口芯片、接口电路及其应用。可见,μP/μC的接口及应用并不十分困难,特别是对硬件比较熟悉的人更是如此。但随着问题复杂性的增加,当需要处理的外设增多时,接口元件也就随之增多,结构复杂将会引起体积庞大,可靠性及μC应用效率下降等问题。为了解决这一问题,许多厂商采用LSI技术,为本厂的μP制造了多种类型的通用接口芯片,以求把在接口中所需要的硬件减少到最低限度。这种芯片本
I. Overview The above sections have introduced many different interface chips, interface circuits and their applications. Visible, μP / μC interface and application is not very difficult, especially for people who are more familiar with the hardware is even more so. However, as the complexity of the problem increases, the number of interface components increases as the number of peripherals to be processed increases. Complex structures will cause problems such as bulky, reliable, and reduced μC application efficiency. To solve this problem, many manufacturers use LSI technology to manufacture various types of universal interface chips for the μP of the factory, in order to minimize the hardware required in the interface. This chip book