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Protocol interface device based on mobile industry processor interface

A technology of processor interface and interface device, which is applied in the direction of electrical digital data processing, instruments, etc.

Active Publication Date: 2012-05-23
SHENZHEN FOCALTECH SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no interface device based on the MIPI protocol that has really been put into industry

Method used

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  • Protocol interface device based on mobile industry processor interface
  • Protocol interface device based on mobile industry processor interface
  • Protocol interface device based on mobile industry processor interface

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Experimental program
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Embodiment Construction

[0032] Further details will be given below in conjunction with various embodiments shown in the accompanying drawings.

[0033] The present invention is based on the interface device of the mobile industry processor interface MIPI protocol, that is, the D-PHY interface device, wherein D-PHY represents the 500Mbit / s physical layer, such as figure 1 As shown, the device includes a data transceiving module 100 and a channel control and interface logic module 200 for processing transceiving data. The data transceiver module 100 includes a differential port D P 、D N At least one of the electrically connected high-speed receiving sub-module 110, high-speed sending sub-module 120, low-power receiving sub-module 130 and low-power sending sub-module 140, the differential port D P 、D N Used to receive / send data. When any one of the low-power receiving sub-module 130 and the low-power sending sub-module 140 is configured in the data transceiving module 100 , the data transceiving mod...

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PUM

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Abstract

The invention relates to a protocol interface device based on the mobile industry processor interface (MIPI). The device comprises a data receiving and sending module and a channel control and interface logic module used for processing the received or sent data. Especially, the data receiving and sending module comprises at least one submodule of a high speed receiving submodule, a high speed sending submodule, a low-power receiving submodule and a low-power sending submodule which are electrically connected with a differential port used for receiving / sending data, wherein the high speed receiving submodule is used to amplifying and shaping the differential signals with low power and low swing amplitude which is input to the interface device to rail to rail signals of which swing amplitude of output voltage is near or equal to the supply voltage. The low-power sending submodule is used to perform control input to the waveform of signals of the interface device, thus the time of rising edge from 15% to 85% of the total peak area in the signal waveform and the time of failing edge from 15% to 85% of trough in the signal waveform are not more than 25ns. The invention provides the realization scheme of the high speed receiving submodule and low-power sending submodule which are applicable to industrial application.

Description

technical field [0001] The invention relates to an electrical interface device, in particular to an industry protocol-based interface device for mobile equipment. Background technique [0002] Prior art mobile products, such as mobile phones, mobile computers, digital cameras, etc., are developing in a lighter and thinner direction. The traditional parallel data bus causes waste of space in the limited design space of mobile products. At the same time, in the case of high-speed data transmission, the parallel data bus brings high power consumption and electromagnetic interference EMI noise. To solve this problem, multiple standardization organizations have developed communication standards suitable for mobile devices, the most notable of which is the interface protocol developed by the MobileIndustry Processor Interface Alliance, referred to as the MIPI protocol. According to the MIPI protocol, the interface can have the advantages of low power consumption and low EMI, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/40
Inventor 莫良华孙庆余
Owner SHENZHEN FOCALTECH SYST