Network-on-chip routing control method, network-on-chip router and readable storage medium

Abstract

The invention discloses a network-on-chip routing control method, a network-on-chip router and a readable storage medium. The method comprises the following steps that: the network-on-chip router acquires a transmission microchip to be forwarded from an input channel; inputting the transmission microchip into an analysis circuit to obtain an analysis result; inputting the analysis result into a firewall circuit to obtain a judgment result about whether the access operation corresponding to the transmission microchip is effective or not; and if the judgment result is valid, forwarding the transmission microchip by using the output channel. According to the method, before a transmission micro-chip of a data packet is forwarded, the transmission micro-chip is verified, and only the transmission micro-chip passing the verification is forwarded. Therefore, the data packet with invalid access operation can be effectively prevented from being forwarded, so that the data packet cannot be sentto a wrong address field, unexpected hardware behaviors are further prevented from being generated, and the reliability of the system on chip can be improved.

Description

technical field [0001] The invention relates to the technical field of on-chip systems, in particular to an on-chip network routing control method, an on-chip network router and a readable storage medium. Background technique [0002] SOC (system-on-chip, system on chip, refers to the integration of a complete system on a single chip) currently contains an increasing number of IP types, and at the same time, in order to complete complex functional requirements, how do multiple processors or multiple IPs communicate? Communication in the form of low power consumption, low latency, high reliability, and flexible expansion has become the main focus of SOC design. A new on-chip communication method that separates computing and communication represented by NOC came into being. [0003] As the core of the NOC architecture, the Router (referring to the network-on-chip router in this article) interconnects multiple PEs (processing elements) to exchange data between PEs or between P...

AI Technical Summary

Problems solved by technology

[0004] When a traditional router forwards a data packet, it is assumed that the destination address requested by the source PE changes unexpectedly due to crosstalk in a certain bit during the flit transmission of the data header, which causes the source PE to access an address that should not belong to the PE through the router. section, which in turn will produce unpredictable hardware behavior, which will reduce the reliability of the SoC

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