A routing control unit for realizing cross-layer routing mechanism of network on chip

Abstract

The invention discloses a routing control unit for realizing cross-layer routing mechanism of on-chip network, which includes: information transfer unit, central control unit, information processing unit, algorithm extension RC unit, pre-caching unit and simplified backup RC unit. The present invention combines the characteristics of "linkage, cross-level, compound algorithm, and dynamic selection" of the on-chip network cross-layer routing mechanism, and the design of its routing control unit takes into account the logic implementation and function realization of the routing mechanism, and at the same time satisfies lower resource occupation as much as possible and strong reusability to meet cross-level collaboration and low-cost design, a routing control unit is proposed to realize the cross-layer routing mechanism of the network on chip, so that the cross-layer routing mechanism of the network on chip can be completely and effectively implemented at the circuit level Express.

Description

technical field [0001] The invention relates to the technical field of on-chip networks, in particular to a routing control unit for realizing the cross-layer routing mechanism of on-chip networks. Background technique [0002] With the advancement of integrated circuit technology and the expansion of the network-on-chip (NoC) interconnection scale, the reliability of NoC has become increasingly serious, so many routing mechanisms for NoC fault-tolerant design have been proposed, and they can be divided into two according to the role of the object. Layer design: circuit layer and communication layer. The design of the routing mechanism at the circuit level focuses on the design of the circuit structure, that is, the routing control unit, and it plays a fault-tolerant role, such as the design of some new routing units. The routing mechanism design at the communication level focuses on the routing algorithm design on the routing topology, and the specific routing algorithm pl...

AI Technical Summary

Problems solved by technology

For a single circuit layer routing mechanism, most of the hardware resources are consumed; for a separate communication layer routing mechanism, idle resources or resources avoided by algorithms are wasted

At the same time, due to the continuous deepening of the two designs, the current routing mechanism has become more and more isolated and independent, so that the NoC-related technologies that originally belonged to the system-level design have deviated from the track of system-level fault tolerance. The two designs cannot be effectively combined and complemented each other. The concept is constantly being raised, which makes the new problems not only many but also uncoordinated, but makes the cost of solving NoC reliability problems increase day by day

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