8051系列芯片通常只有1个或2个串口,在工程实际中,往往需要多个串口进行整个系统的通信,但是普通单片机或者DSP原有的UART串口都比较少。GM8125可以将1个全双工的标准串口扩展成5个全双工的标准串口,并能通过外部引脚控制串口扩展模式:单通道工作模式或多通道工作模式。在车长 8051 series chips usually only have one or two serial ports. In engineering practice, multiple serial ports often need to communicate with the entire system. However, ordinary single-chip or DSP serial UART ports are relatively small. GM8125 can be a full-duplex standard serial port extended to five full-duplex standard serial port, and through the external pin control serial port expansion mode: single-channel mode of operation or multi-channel mode of operation. In the captain