Electronic device having multifunctional network interface port
AssigneesHONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., Hon Hai Precision Industry Co., Ltd.
InventorsJin-Rong Zhao, Guang-Jian Wang, Xiao-Mei Liu
Life of this patent
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Abstract
An electronic device includes a network interface port, a processing unit, a network card, a serial interface, and a microchip. The network interface port connects to a debugging host or connects to an external network. The processing unit is connected to the network interface port. The network card is connected to the processing unit. The microchip is connected to the processing unit through the serial interface. The processing unit determines whether the network interface port is connected to the debugging host or connected to the external network, and selectively connects the network card or the serial interface to the network interface port according to the determination.
Claims13
An electronic device, comprising:
- a network interface port;
- a network card;
- a serial interface;
- a processing unit, the processing unit comprising:
- a group of input pins connected to the network interface port;
- a group of first output pins connected to the network card;
- and
- a group of second output pins connected to the serial interface;
- when the network interface port is connected to the external network, the first output pins connected to the input pins;
- when the network interface port is connected to the debugging host, the second output pins connected to the input pins;
- and
- a microchip connected to the processing unit through the serial interface;
- wherein the processing unit determines whether the network interface port is connected to a debugging host or connected to an external network, and selectively connects the network card or the serial interface to the network interface port according to the determination.
An electronic device, comprising:
- a network interface port;
- a processing unit connected to the network interface port;
- a network card connected to the processing unit;
- a serial interface;
- and
- a microchip connected to the processing unit through the serial interface;
- wherein the processing unit determines whether the network interface port is connected to a debugging host or connected to an external network, and selectively connects the network card or the serial interface to the network interface port according to the determination;
- the processing unit includes a base voltage, the processing unit compares an averaged voltage corresponding to signals transmitted from the network interface port with the base voltage and determines whether the network interface port is connected to the external network or the debugging host according to the comparison.
Dependencies are inferred from the claim text.