使用ISL81387或ISL41387实施三孔,半双工,双协议(RS - 232 / RS - 485)接口 Implementing a Three Pin, Half-Duplex, Dual Protocol (RS-232/RS-485) Interface Using the ISL81387 or ISL41387 Application Note January 25, 2008 AN1378.0 By Jeff Lies Introduction loopback, etc.). One of these sub-modes is particularly useful for this ……