A one-to-many transmission method based on mipi DSI bus

A multi-transmission, one-to-one technology, applied in the direction of cathode ray tube indicators, static indicators, instruments, etc., to achieve the effect of optimizing layout and avoiding crossover

Active Publication Date: 2021-09-07
南京初芯集成电路有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no method in the prior art that can actively control the MIPI DSI signal transmission of the motherboard from the TX end or the RX end to multiple MIPI DSIs

Method used

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  • A one-to-many transmission method based on mipi DSI bus
  • A one-to-many transmission method based on mipi DSI bus
  • A one-to-many transmission method based on mipi DSI bus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The present invention provides an architecture-many transmission method MIPI DSI bus, such as attachment image 3 Indicated. By the sender Mobile Industry Processor Interface MIPI i.e., the TX transmits a control end-to-many active alignment control, the Controller transmitting end is located in the TX MIPI, the TX transmitting side MIPI DSWAP [1: 0] and the first receiving terminal and MIPI MIPI RXl DSWAP second receiving terminal RX2 [1: 0] is connected to the terminal while controlling transmission MIPI TX MIPI RX1 receiving a first end and a second level status DSWAP end MIPI RX2 received by the controller may be sent by the selected terminal MIPI TX when a certain time point and the first receiving terminal MIPIRX1 MIPI RX2 or the second end of the communication receiver, selecting a first receiving terminal or the MIPI RX1 MIPI RX2 second receiving terminal in communication, the remaining unselected communication MIPI RX to the receiving end a failed state.

[0030] Wh...

Embodiment 2

[0034] Further, the present invention also proposes a multi-transmission method of architecture in the MIPI DSI bus, Figure 4 As shown, the RX side actively controls a pair of multi-line lines.

[0035] In the present embodiment, the controller controller is located at the MIPI Rx receiver, which can be implemented in the technical solution of the present invention on the MIPI RXN (N Nature). Figure 4 Only two MIPI RX receiving ends are shown for understanding the present invention.

[0036] Append Figure 4 As shown, the controller Controller is located at the MIPI Rx2 second receiving end, and the DSWAP [1: 0] of the MIPI Rx2 second receiving end is connected to DSWAP [1: 0] of the MIPI Rx1 first receiving end, when MIPI RX2 second receiving end When the MIPI RX1 first receiving end is required, the controller controller sets DSWAP [1: 0] = 11 of the MIPI RX1 first receiving end, at which point the MIPI Rx1 first receiving end is at the same time in the working state.

[0037] Wh...

Embodiment 3

[0040] Further, the present invention also proposes a multi-transmission method of architecture in the MIPI DSI bus, Figure 5 As shown, the external controller actively controls a pair of multi-circular lines.

[0041] The MIPI RX1 first receiving end, the MIPI Rx2 second receiving end is connected by an external controller, and the DSWAP foot bit signal is switched, determine the control of the MIPI RX1 first receiving end, the MIPI Rx2 second receiving end BUS.

[0042] When the MIPI Rx1 first receiving end and the MIPI RX2 second receiving end are required to operate at the same time, the controller sets the MIPI Rx1 first receiving end DSWAP [1: 0] = 11, MIPI RX2 second receiving end DSWAP [ 1: 0] = 11.

[0043] When the MIPI RX1 first receiving end is required, the MIPI Rx2 second receiving end is felt, the controller sets the MIPI Rx1 first receiving end DSWAP [1: 0] = 11, MIPI RX2 second receiving end DSWAP [ 1: 0] = 10.

[0044] When the MIPI RX1 first receiving end is inv...

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PUM

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Abstract

The present invention is a one-to-many transmission method based on the MIPI DSI bus, which uses the way of changing channel exchange and positive and negative pole exchange to achieve the function of switching different receiving ends, and realizes the purpose of the host sending end to multiple receiving ends. The end or the receiving end actively controls the transmission of the MIPI DSI signal of the motherboard to multiple MIPI DSI devices, which overcomes the existing technology that can only realize the one-to-many transmission and reading of the MIPI DSI bus, and achieves the change of channel arrangement and communication through the one-to-many transmission function. The exchange of positive and negative poles achieves the purpose of optimizing the layout and routing of MIPI on PCB or FPC and avoiding crossover.

Description

Technical field [0001] The present application relates to an electrical data signal processing technologies, and particularly to an architecture-many transmission method MIPI DSI bus. Background technique [0002] MIPI DSI applied to the display is a high-speed serial interface technology compatible DPI (display pixels interfaces, Display Pixel Interface), DBI (bus interface display, Display Bus Interface) and the DCS (display key, Display Command Set), to serial send information or instructions to a peripheral pixel, and reads the status information or the pixel information from the peripheral, and enjoys its own independent communication protocol during transmission, comprising a data packet format error detection and error correction mechanism. MIPI DSI high speed mode and a low speed mode includes two modes of operation, all the data channels can be used for high speed unidirectional transmission, but only the first channel is available for a low-speed two-way data transmissi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/40G09G5/00
CPCG06F13/4022G09G5/006
Inventor 李景正万波廖炳隆邢潜
Owner 南京初芯集成电路有限公司
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