Multi-channel communication circuit
AssigneeHon Hai Precision Industry Co., Ltd.
InventorHENG-CHEN KUO
Life of this patent
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Abstract
A multi-channel communication circuit includes a master device, a plurality of slave devices, and a multiplexer (MUX). A transmitting pin and a receiving pin of a serial interface of the master device are respectively connected to two data input pins of the MUX. Two control pins of the serial interface of the master device are connected to two selecting pins of the MUX. Four pins of the serial interface of the master device are connected to a power pin of the MUX. A transmitting pin and a receiving pin of a serial interface of each slave device are respectively connected to two data output pins of the MUX, the master device communicates with one slave device via transmitting a corresponding selecting signal to the two selecting pins of the MUX to select one slave device.
Claims9
A multi-channel communication circuit, comprising:
- a master device having a serial interface;
- a plurality of slave devices each having a serial interface;
- and
- a multiplexer (MUX), a transmitting pin and a receiving pin of the serial interface of the master device respectively connected to two data input pins of the MUX, at least one control pin of the serial interface of the master device connected to at least one selecting pin of the MUX, a ground pin of the serial interface of the master device connected a ground pin of the MUX, at least one high voltage pin of the serial interface of the master device connected to a power pin of the MUX, a transmitting pin and a receiving pin of the serial interface of each of the slave devices respectively connected to two data output pins of the MUX, the master device communicating with one of the slave devices via transmitting a corresponding selecting signal to the at least one selecting pin of the MUX to select one of the plurality of slave devices.
A multi-channel communication circuit, comprising:
- a master device having a serial interface;
- a plurality of slave devices each having a serial interface;
- a multiplexer (MUX);
- and
- a plurality of diodes, a transmitting pin and a receiving pin of the serial interface of the master device respectively connected to two data input pins of the MUX, at least one control pin of the serial interface of the master device connected to at least one selecting pin of the MUX, a ground pin of the serial interface of the master device connected a ground pin of the MUX, a plurality of voltage pins of the serial interface of the master device respectively connected to the anodes of the plurality of diodes, the cathodes of the plurality of diodes connected to a power pin of the MUX, a transmitting pin and a receiving pin of the serial interface of each of the slave devices respectively connected to two data output pins of the MUX to select one of the plurality of slave device, the master device communicating with one of the slave devices via transmitting a corresponding selecting signal to the at least one selecting pin of the MUX.
Dependencies are inferred from the claim text.