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...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects of the prior art that the more peripheral devices controlled by the control system using the internal integrated circuit bus to transmit control signals, the microcontroller consumes more pins and increases the cost of components, it is necessary to provide a control device with more peripheral devices but A control system that uses an internal integrated circuit bus to transmit control signals using a microcontroller that consumes fewer pins, thereby reducing component costs

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