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https://e2e.ti.com/support/interface-group/interface/f/interface-forum/616138/tl16c752d-modem-control
你(们)好
如果不使用调制解调器控件，应如何设置*CD，*DSR，*DTR，*RI？
如果我们不使用，是否可以让这些针脚保持打开状态？
此致，
山本浩二
