说明：  探讨了C8051F020单片机的串行此基础上构造了基于C8051F020单片机的UART0口的串行通信技术。提供了与单片机串行通信系统结构，完成了其串行通信的硬件电路设计及其软件通信设计
(C8051F020 MCU on the basis of serial structure based on the C8051F020 MCU serial port UART0 communication technologies. Provides single-chip serial communication system, the completion of the serial communication hardware and software design communication design)