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2)微处理器软件程序控制从功能(软件)上看,微处理器则是一个功能解码程序控制器。微处理器先通过对遥控或本控键盘矩阵的扫描,判断、识别被按键功能码,然后对其功能码进行解码,输出对应控制信号,并执行相应的操作,完成所要求的各种控制功能。其工作过程是在微处理器内部只读存储器(ROM)中预先写入并固化好的专用程序控制下进行的。为了便于说明微处理器对遥控彩电操作控制过
2) microprocessor software program control From the function (software) point of view, the microprocessor is a function decoder program controller. Microprocessor first through the remote control or the keyboard matrix control of the scan, determine, identify the key function code, and then decode its function code, the corresponding output control signals and perform the appropriate operation to complete the required control functions . The working process is carried out under the control of a special program pre-written and solidified in the internal ROM of the microprocessor. In order to explain the microprocessor control of remote color TV operation