The interruption source of the controller was abstained by a port-query pattern.
控制器采用端口查询方式来获取中断源。
It is composed of the microprocessor system and a serial port controller. The software is divided into main program and interruption program.
硬件结构由微处理器和串口控制器两部分组成，程序分为主程序和中断子程序两部分。
Micro-controller AT89C51 of the system which works in the serial ways can control the Baud rate that the data receiving and dispatching, and receiving and dispatching the data by way of interruption.
系统中数据的接收和发送工作在串行方式下，AT89C51可以控制数据收发的波特率，以及以中断方式控制数据的发送与接收。
Micro-controller AT89C51 of the system which works in the serial ways can control the Baud rate that the data receiving and dispatching, and receiving and dispatching the data by way of interruption.
系统中数据的接收和发送工作在串行方式下，AT89C51可以控制数据收发的波特率，以及以中断方式控制数据的发送与接收。
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