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TM4C1294KCPDT: TM4C1294KCPDT网口插拔,程序如何检测当前网口是否连接网线

Part Number: TM4C1294KCPDT

TM4C1294KCPDT程序工作时,网线拔掉,程序无法知道当前网线是否连接,可以读取什么寄存器能知道当前网口连接情况。