Unibus in communication with master equipment and slave equipment and communication method

A technology of device communication and communication method, which is applied in the field of realization of serial bus, achieves the effects of stable device operation, meeting technical requirements, and reducing the number of I/Os

Inactive Publication Date: 2014-05-28
SHANGHAI SINOMCU MICROELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing bus technologies have their own advantages, in view of the current development trend of miniaturized systems, these buses are difficult to meet the technical requirements

Method used

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  • Unibus in communication with master equipment and slave equipment and communication method
  • Unibus in communication with master equipment and slave equipment and communication method
  • Unibus in communication with master equipment and slave equipment and communication method

Examples

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Embodiment Construction

[0027] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] The present invention can realize the half-duplex two-way communication between the main controller and one or more slave devices with only one data line, and the working power of the slave devices can be obtained from the bus through the linear voltage regulator LDO without a separate Power support. In a nutshell, a device that supports the Sino bus (the abbreviation of the single bus) can use a bidirectional VCCIO port and VSS to ensure that the slave device runs at full speed, and the working power no longer needs to be realized by connecting an external power supply through the VDD pin, so that the interface of the device The number will be greatly reduced.

[0029] The Sino bus is a single-master multi-slave bus system. The bus can mount multiple slave devices. Each slave device is connected to the bus in an open-drain manner. The...

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PUM

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Abstract

The invention discloses a unibus in communication with master equipment and slave equipment. The uibus is used for achieving half-duplex both-way communication and power supply transmission between a master controller and at least one slave device, and the unibus is connected with the slave equipment through a data and power supply transmission pin and a grounding pin. Meanwhile, the invention discloses a communication mode of the unibus in communication with the master equipment and the slave equipment.

Description

technical field [0001] The invention relates to the field of communication, in particular to the aspect of communication between an integrated circuit chip and a peripheral device in an embedded application system, and is a novel realization method of a serial bus oriented to master-slave device communication. Background technique [0002] A common way to reduce the size and cost of any embedded design is to use a communication bus with fewer I / O pins. While moving from a parallel bus to a serial bus provides significant size and cost savings, it can also be useful to move from one serial bus to another with fewer pins. When replacing a parallel bus with a serial bus, transfer speed is a key parameter. In designs where small size is the most important parameter, it is advantageous to use a serial bus with fewer pins. [0003] With the development of microelectronics and communication bus technology, many different serial interfaces are integrated in integrated circuit chip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/38G06F13/42
Inventor 杨维张文荣陆健王成
Owner SHANGHAI SINOMCU MICROELECTRONICS
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