Network on chip and hedge suspension relieving method

Abstract

The invention provides a network on chip and a hedge suspension relieving method, and belongs to the field of communication technologies. In the network on chip, a first node on a first ring network is in butt-joint with a second node on a second ring network through a bridge; the first node comprises a first detecting module and a first relieving module; when the first detecting module detects that the first node is in a first state, a first hedge suspension signal is set to be the first level, and the first relieving module is triggered to jump to a blockage starting mode; the first relieving module sets a first outlet blocking signal and a first inlet blocking signal to be the first level, and broadcasts the first inlet blocking signal with the first level to other nodes on the first ring network; and the first relieving module jumps to a suspension relieving mode when the broadcast time length reaches the preset time length, and sets the first outlet blocking signal to be the second level. The network on chip can timely detect a hedge suspension state and perform a hedge suspension relieving operation. In addition, the network on chip is very low in logic complexity, very smallin consumption resource and 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...

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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

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