On-chip network and method for removing hedging hang-up

Abstract

Provided are an on-chip network and a hedge hanging removing method, which belong to the technical field of communications. In the on-chip network, a first node of a first ring network interfaces with a second node of a second ring network by means of a bridge, wherein the first node comprises a first detection module and a first removal module. When the first detection module detects that the first node is in a first state, a first hedge hanging signal is set to be of a first level, and the first removal module is triggered to shift into a start-blocking mode, and the first removal module sets a first egress blocking signal and a first ingress blocking signal to be of the first level, and broadcasts the first inlet blocking signal, which is of the first level, to other nodes on the first ring network. When the duration of broadcasting reaches a pre-set duration, a hanging removal mode is shifted to and the first egress blocking signal is set to be of a second level. In the present disclosure, a hedge hanging state can be detected in a timely manner and a hedge hanging removal operation can be carried out. The logical complexity is low, very few resources are consumed, and the invention is easy to implement.

Description

technical field [0001] The present disclosure relates to the technical field of communication, and in particular to a network on chip and a method for releasing a hedging suspension. Background technique [0002] As semiconductor process technology enters the nanometer stage, the size of transistors continues to shrink, and a large number of modules can be integrated on a single chip. At this time, a network on chip (NoC) can be used to connect multiple modules. data communication between them. With the expansion of the chip scale and the continuous increase of the number of modules, it has become a common solution to implement NoC by using multiple bufferless ring networks (Bufferless Ring Network, BLR). [0003] A ring network includes multiple slots (Slots), which are connected to form a ring network. Each Slot can be connected to a node, and the node is connected to a module. When the on-chip network includes multiple ring networks, the nodes on different ring networks...

AI Technical Summary

Problems solved by technology

[0006] In the process of realizing the present disclosure, the inventors found that the relevant technology has at least the following defects: the data on the first ring network must be sent to the second ring network, and the data on the second ring network must be sent to In the case of the first ring network, when the Slots, ingress queues and egress queues on the first and second ring networks, and the bridging buffers in the bridges are all full of data, these two rings are caused The data on the ring network cannot be sent, and at this time, a hedging hangup is formed, resulting in the inability of data communication between the two ring networks

Images