Port multiplexing circuit and electronic equipment

Abstract

The present application relates to the field of integrated circuit technology, and in particular to a port multiplexing circuit and electronic equipment, wherein the port multiplexing circuit includes port pins, a selection circuit, a first function circuit, a second function circuit and a switching control circuit. The first input end of the selection circuit is connected to the port pin, the second input end of the selection circuit is connected to the switching control circuit, the first output end of the selection circuit is connected to the first functional circuit, The second output terminal of the selection circuit is connected to the second functional circuit, and the switching control circuit is also connected to the second functional circuit, and the switching control circuit is used for controlling the second functional circuit according to the The signal outputs the first logic signal or the second logic signal, and the selection circuit selects the first function circuit or the second function circuit as the current working circuit to open different function modes of the circuit, which is beneficial to circuit integration and improves the reliability of electronic equipment sex.

Description

Technical field [0001] The present application belongs to the field of integrated circuit technology, in particular involving a port multiplexing circuit and electronic equipment. Background [0002] With the development of electronic technology, various consumer electronics and Internet of Things devices tend to miniaturize, more functional circuits are integrated together, and the number of IO ports of integrated circuits is greatly limited. At the same time as the miniaturization of electronic devices, the volume and capacity of its built-in batteries are also greatly limited, in order to improve the endurance of electronic devices and extend their standby time, it is necessary for electronic devices to have a circuit design with low-power modes. [0003] As a result, for miniature electronic devices, higher requirements are placed on more functions, use fewer pins, and reduce power consumption. Contents of the Invention [0004] The main purpose of the present application i...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of this application is to provide a port multiplexing circuit and electronic equipment, aiming to solve the problem of increasing the occupation of IO ports when the electronic equipment realizes multi-function, and to provide a circuit scheme for realizing port multiplexing and realizing more functions in microelectronic equipment , which is conducive to circuit integration and improves the reliability of electronic equipment

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