Bus control method, electronic equipment and bus system

Abstract

The invention provides a bus control method. According to the method, an enable signal is transmitted between slave devices and a master device on the basis of a signal transmission lines independent of a transmission task signal bus, and the operation states of the slave devices are adjusted through combination of the enable signal and the current operation states of the slave devices so that the slave devices keep working or perform state switching. Since the independent signal transmission lines are arranged between the master device and the slave devices, the enable signal can be directly transmitted to a target slave device, and the target slave device does not need to monitor the signaling transmission on the bus in real time, but only needs to make a judgment according to the received enable signal and the self-operating state and then gives a response. Therefore, the slave devices, which do not need to respond the enable signal, can neglect or do not respond the enable signal according to the self-operating states so as avoid useless monitoring; therefore, the power consumption of the slave devices is reduced and the overall power consumption of a bus system comprising the master device and the slave devices is reduced.

Description

technical field [0001] The present invention relates to the field of electronic equipment, and more specifically, relates to a bus control method, electronic equipment and a bus system. Background technique [0002] As a data transmission method widely used in electronic equipment, the bus can connect multiple devices, such as figure 1 Shown is a schematic diagram of a bus system in the prior art, the bus 101 serially connects a master device 102 and multiple slave devices 103 . The bus is connected to the information sent by each device on it to transmit, and each slave device connected to the bus listens to various information such as data information and signaling transmitted in the bus. [0003] However, when the slave devices are all in working state, when the master device sends an instruction, the instruction may only be carried out for a certain slave device. Even if other slave devices hear the instruction, because the instruction is useless to it, the Ineffective...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a kind of bus control method, solves the problem that all slave devices connected to the bus all listen to the information transmitted in the bus, which causes some slave devices to listen to useless work, resulting in The problem of high overall power consumption of the bus system

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