System for transmitting control signal by internal IC bus

Abstract

A control system using internal integrated circuit bus transmission to control signal is prepared as setting multiple pin on controller, connecting these pins separately to clock line and multiple data line one by one, providing relevant clock signal and control signal to each controlled peripheral unit with the same address by said controller through each data line and clock line.

Description

Technical field

[0001] The invention relates to a control system, in particular to a control system which adopts an internal integrated circuit bus to transmit control signals.

Background technique

[0002] Inter Integrated Circuit BUS (Inter Integrated Circuit BUS, I 2 C-BUS) is an on-chip two-wire serial expansion bus proposed by Philips Semiconductors that is widely used in consumer electronics, communications and industrial electronics. I 2 C-BUS is an integrated circuit internal control bus composed of two bidirectional data lines. Its main feature is that only two data transmission paths are required, namely a serial data line (Serial Data Line, SDA) and a serial clock line ( Serial Clock Line, SCL). Every component connected to the bus has a unique address. I 2 C-BUS allows several compatible devices (such as memory, analog / digital converter, digital / analog converter and organic light-emitting diode display driver, liquid crystal display driver, etc.) to shar...

Examples

Embodiment Construction

[0010] Please refer to Fig. 2, it is the adoption I of the present invention 2 Schematic diagram of the control system structure for C-BUS transmission of control signals. The control system 200 includes a microcontroller 20 , a clock line SCL11 , a first data line SDA12 , a second data line SDA13 and a third data line SDA14 . The microcontroller 20 includes four pins, the first pin 11, the second pin 12, the third pin 13 and the fourth pin 14 are respectively connected with the clock line SCL11, the first data line SDA12, the second data line SDA13 It is connected with the third data line SDA14. The first pin 11 and the second pin 12 of the microcontroller 10 provide the first clock signal and the first control signal to the controlled first peripheral device (not shown in the figure) respectively through the clock line SCL11 and the first data line SDA12 ). The first pin 11 and the third pin 13 of the microcontroller 20 provide a second clock signal and a second control s...

Technical field

[0001] The invention relates to a control system, in particular to a control system which adopts an internal integrated circuit bus to transmit control signals.

Background technique

[0002] Inter Integrated Circuit BUS (Inter Integrated Circuit BUS, I 2 C-BUS) is an on-chip two-wire serial expansion bus proposed by Philips Semiconductors that is widely used in consumer electronics, communications and industrial electronics. I 2 C-BUS is an integrated circuit internal control bus composed of two bidirectional data lines. Its main feature is that only two data transmission paths are required, namely a serial data line (Serial Data Line, SDA) and a serial clock line ( Serial Clock Line, SCL). Every component connected to the bus has a unique address. I 2 C-BUS allows several compatible devices (such as memory, analog / digital converter, digital / analog converter and organic light-emitting diode display driver, liquid crystal display driver, etc.) to shar...

Examples

Embodiment Construction

[0010] Please refer to Fig. 2, it is the adoption I of the present invention 2 Schematic diagram of the control system structure for C-BUS transmission of control signals. The control system 200 includes a microcontroller 20 , a clock line SCL11 , a first data line SDA12 , a second data line SDA13 and a third data line SDA14 . The microcontroller 20 includes four pins, the first pin 11, the second pin 12, the third pin 13 and the fourth pin 14 are respectively connected with the clock line SCL11, the first data line SDA12, the second data line SDA13 It is connected with the third data line SDA14. The first pin 11 and the second pin 12 of the microcontroller 10 provide the first clock signal and the first control signal to the controlled first peripheral device (not shown in the figure) respectively through the clock line SCL11 and the first data line SDA12 ). The first pin 11 and the third pin 13 of the microcontroller 20 provide a second clock signal and a second control s...

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