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Processing method of SPI4 interface data packet

A technology of interface data and processing method, applied in the field of communication, can solve the problems of poor compatibility and high cost of SPI4 interface, achieve the effect of easy engineering implementation, enhance signal integrity, reduce the number of pins and power consumption

Active Publication Date: 2012-09-05
DAWNING INFORMATION IND BEIJING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Considering the problems of high cost and poor compatibility of SPI4 interface in the related art, the object of the present invention is to provide a processing scheme of SPI4 interface data packet, to solve at least one of the above-mentioned problems

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  • Processing method of SPI4 interface data packet
  • Processing method of SPI4 interface data packet
  • Processing method of SPI4 interface data packet

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Embodiment Construction

[0015] Aiming at the problems of high cost and poor compatibility of the SPI4 interface in the related art, the present invention proposes to realize the processing of the SPI4 interface data through the FPGA, and the compatibility of the SPI4 interface is greatly improved through the protocol conversion, so that the SPI4 interface can be used as a 10Gbps WAN, LAN, MAN Common interface with SAN, and can effectively reduce costs.

[0016] The present invention can use a variety of FPGAs as carriers. Taking LX110T FPGA as an example, the present invention can apply resources such as Ibufds (data buffering), IODELAY (delay control) and IDDR (converting double-edge data or clock to single-edge) inside the device. For processing, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] figure 1 It is a flow chart of the processing method of the SPI4 interface data packet according to the embodiment of the pr...

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Abstract

The invention provides a processing method of SPI4 interface data packet, which comprises the following steps of: acquiring midpoint data of a data valid window through carrying out delayed transaction on interface data; carrying out protocol conversion on the delayed interface data and removing control words in the conversed interface data; and carrying out alignment operation on the interface data after being removed the control words and receiving the interface data. By using the invention, a common interface of 10Gbps WAN, LAN, MAN and SAN can be realized, the design of an interface protocol is easier for engineering realization, pin number and power consumption are reduced and the completeness of a signal is enhanced.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a method for processing SPI4 interface data packets. Background technique [0002] SPI4.2 (System Packet Interchange Interface, Level 4) is a new system-level interface standard that designers can use to develop flexible and scalable systems for centralized data and communication facilities. The SPI4 interface supports multiple protocols at varying high rates, including packets over SONET / SDH (POS frames), OC-192, Ethernet, Fast Ethernet, Megabit Ethernet, 10 Megabit Ethernet network and 10Mbit Fiber Channel SAN, etc. [0003] At present, the SPI4 interface is generally implemented through a dedicated ASIC or an expensive IP core. The form is relatively restricted, the cost is high, and it is not compatible with network protocols such as 10Gbps WAN, LAN, MAN, and SAN. Contents of the invention [0004] Considering the problems of high cost and poor compatibility...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/10
Inventor 张磊刘兴奎窦晓光
Owner DAWNING INFORMATION IND BEIJING