All-node virtual-channel network-on-chip ring topology data exchange method and system

Abstract

The invention discloses an all-node virtual-channel network-on-chip ring topology data exchange method. N switching nodes form a ring topology structure, N-1 virtual channels stored and arranged in parallel in each switching node correspond to the data of N-1 addresses of a previous node respectively, the virtual channels, corresponding to a certain target address node, of all the nodes form a virtual ring and all the data which are sent to the target node are sent by the virtual ring; and when an input FIFO module and the virtual channels send the data to the next node simultaneously, one path of the data is selected to be sent to a physical channel according to priority configuration and another path is fed back as a block signal, the next node feeds a signal back to the previous node when receiving the data and the virtual channel having the data are selected for transmission through switching-over when the feedback signal which represents the blockage is received. The invention also provides a ring topology data exchange system. The method and the system can effectively solve the problem of head-of-line blocking formed by all the nodes together and improve the communication efficiency.

Description

technical field [0001] The invention relates to a communication mode of a network system on a chip, in particular to a control method and system for data transmission and exchange in a ring topology network. Background technique [0002] With the advancement of semiconductor manufacturing technology, more and more functional modules can be integrated on a chip, and the communication efficiency between various modules inside the chip is gradually becoming an important factor affecting performance. [0003] In a traditional system-on-chip, communication between modules is usually carried out through a shared bus technology. However, as the internal complexity of the chip increases, the communication tasks between modules become heavier, and the traditional bus-based data transmission gradually fails to meet the needs. So another technology called network-on-chip has gradually attracted people's attention. This technology uses the idea of ​​traditional computer Internet data ...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the existing on-chip network ring topology that cannot solve the head-of-line blocking formed by multiple nodes and the communication efficiency is low, the present invention provides a method that can effectively solve the head-of-line blocking formed by multiple nodes and improve communication efficiency. On-chip network ring topology data exchange method and system of full-node virtual channel

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