Abstract: An electronic device includes a first stream port and a control circuit. The first stream port includes a plurality of lanes, wherein the plurality of lanes are used to couple to a plurality of lanes of a second stream port of another electronic device, respectively. The control circuit is coupled to the first stream port, and is arranged for controlling a data transmission and data reception of the first stream port. When the lanes of the first stream port receive training sequences having a plurality of lane numbers from the lanes of the second stream port, respectively, to initiate a lane number negotiation, the lanes of the first stream port send back the received lane numbers to the second stream port, without considering default lane numbers of the lanes of the first stream port.

Abstract: An electronic device includes an integrated circuit, a connector, and a circuit board. The integrated circuit includes a first signal processing circuit, a second signal processing circuit, and an interface multiplexer having a first input port electrically connected to the first signal processing circuit, a second input port electrically connected to the second signal processing circuit, and an output port arranged to be electrically connected to the first input port or the second input port. The circuit board carries the integrated circuit and has a plurality of connector placement sites, including at least a first connector placement site each dedicated to the first signal processing circuit and at least a second connector placement site each dedicated to the second signal processing circuit. The connector placement sites and the output port of the interface multiplexer are electrically connected in series. The connector is installed on one of the connector placement sites.

Abstract: A control chip includes a configurable pin and a control logic. The configurable pin is arranged for coupling a first pin and a second pin of a high-definition multimedia interface (HDMI) connector. The control logic is arranged for controlling the configurable pin to switch between a first operation mode and a second operation mode. The configurable pin serves as an input pin when operating in the first operation mode, and the configurable pin serves as an output pin when operating in the second operation mode. For example, the input pin is arranged for receiving a power supply signal derived from a +5V power signal received by the first pin, and the output pin is arranged for outputting a control signal for controlling hot plug detection (HPD).

Abstract: An electronic device includes an integrated circuit, a connector, and a circuit board. The integrated circuit includes a first signal processing circuit, a second signal processing circuit, and an interface multiplexer having a first input port electrically connected to the first signal processing circuit, a second input port electrically connected to the second signal processing circuit, and an output port arranged to be electrically connected to the first input port or the second input port. The circuit board carries the integrated circuit and has a plurality of connector placement sites, including at least a first connector placement site each dedicated to the first signal processing circuit and at least a second connector placement site each dedicated to the second signal processing circuit. The connector placement sites and the output port of the interface multiplexer are electrically connected in series. The connector is installed on one of the connector placement sites.

Abstract: An electronic device includes an integrated circuit, a connector, and a circuit board. The integrated circuit includes a first signal processing circuit, a second signal processing circuit, and an interface multiplexer having a first input port electrically connected to the first signal processing circuit, a second input port electrically connected to the second signal processing circuit, and an output port arranged to be electrically connected to the first input port or the second input port. The circuit board carries the integrated circuit and has a plurality of connector placement sites, including at least a first connector placement site each dedicated to the first signal processing circuit and at least a second connector placement site each dedicated to the second signal processing circuit. The connector placement sites and the output port of the interface multiplexer are electrically connected in series. The connector is installed on one of the connector placement sites.

Abstract: A control chip includes a configurable pin and a control logic. The configurable pin is arranged for coupling a first pin and a second pin of a high-definition multimedia interface (HDMI) connector. The control logic is arranged for controlling the configurable pin to switch between a first operation mode and a second operation mode. The configurable pin serves as an input pin when operating in the first operation mode, and the configurable pin serves as an output pin when operating in the second operation mode. For example, the input pin is arranged for receiving a power supply signal derived from a +5V power signal received by the first pin, and the output pin is arranged for outputting a control signal for controlling hot plug detection (HPD).

Abstract: An electronic device includes an integrated circuit, a connector, and a circuit board. The integrated circuit includes a first signal processing circuit, a second signal processing circuit, and an interface multiplexer having a first input port electrically connected to the first signal processing circuit, a second input port electrically connected to the second signal processing circuit, and an output port arranged to be electrically connected to the first input port or the second input port. The circuit board carries the integrated circuit and has a plurality of connector placement sites, including at least a first connector placement site each dedicated to the first signal processing circuit and at least a second connector placement site each dedicated to the second signal processing circuit. The connector placement sites and the output port of the interface multiplexer are electrically connected in series. The connector is installed on one of the connector placement sites.

Abstract: A controller (10) for controlling a plurality of slave devices (111, 112) having a same address includes a plurality of pins (C11, C12), a determining module (103), a controller module (104), and a switching module (105). One of the pins transmits a first signal, and another of the pins transmits a second signal. The determining module determines which one of the slave devices is to be controlled according to a received control signal. The searching module controls the determined slave device. When needed, the switching module exchanges the first signal output from the one pin and the second signal output from the another pin according to the determined slave device.