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    • 1. 发明授权
    • External multiple peripheral interface to computer serial port using
individually configured parallel port terminals
    • 使用单独配置的并行端口终端的计算机串行端口的外部多外设接口
    • US5812879A
    • 1998-09-22
    • US49174
    • 1993-04-19
    • Ricardo J. Moro
    • Ricardo J. Moro
    • G06F13/38G06F13/00
    • G06F13/385
    • A multiple peripheral interface to a computer serial port includes a microcontroller with an adapter serial port for coupling to a standard serial port of a common type of host computer or terminal, a plurality of peripheral ports having read/write configurable data lines for coupling to devices of a process, and a central processing unit interfaced between the adapter serial port and the peripheral ports and executing an adapter operating program to translate simple letter commands and numeric values received from the host computer to port configuration commands, port read commands, and port commands and to translate data read from the peripheral ports to numeric values for transmission back to the host computer.
    • 与计算机串行端口的多个外围接口包括具有适配器串行端口的微控制器,该适配器串行端口用于耦合到普通类型的主计算机或终端的标准串行端口,具有用于耦合到设备的读/写可配置数据线的多个外围端口 以及中间处理单元,其连接在适配器串行端口和外围端口之间,并且执行适配器操作程序以将从主计算机接收的简单字母命令和数值转换为端口配置命令,端口读取命令和端口命令 并将从外围端口读取的数据转换为数字值,以便传输回主计算机。