Method and system for a single-wire serial communication interface

Abstract

The invention discloses a single serial communication interface method and system. The method is applied to a single serial communication interface device which comprises a control module, a physical layer module, a receiving module and a sending module, a host communicates with a slave device through a single serial communication interface, and the host sends a signal to the physical layer module; the physical layer module conducts synchronization on the signal; the control module controls the receiving module to receive a read-write signal sent by the host, the read-write signal comprises a slave device address, a read-write mode signal and a register address, and odd-even check is conducted on the read-write signal; the control module controls the sending module to send the read-write signal to the slave device. The single serial communication interface belongs to a one wire interface, the data exchanging function between devices is achieved easily and conveniently, and a practical choice is provided for a circuit design engineer; by means of the single serial communication interface device, the area of an interface chip and the pin number are greatly decreased, and the interconnection cost is reduced.

Description

technical field [0001] The invention relates to the technical field of serial communication, in particular to a method and system for a single-line serial communication interface. Background technique [0002] With the development of society, more and more electronic devices have entered people's lives, and the communication between electronic devices is becoming more and more frequent. How to choose the interface between devices is particularly important. In the field of low-speed serial communication, circuit design engineers generally use the I2C bus developed by Philips. The I2C bus is a two-wire interface, and the I2C (Inter-Integrated Circuit) bus is a two-wire serial bus developed by PHILIPS for connecting microcontrollers and their peripherals. It is a bus standard widely used in the field of microelectronics communication control. The I2C bus supports any IC production process (CMOS, bipolar). Information is passed between devices connected to the bus through the...

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Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, one of the purposes of the present invention is to provide a single-wire serial communication interface method, which can solve the problems of large interface chip area and large number of pins

[0005] The second object of the present invention is to provide a single-wire serial communication interface system, which can solve the problems of large interface chip area and large number of pins

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