Adaptive and asynchronous routing network on 2D-Torus chip and design method thereof

Abstract

The invention discloses an adaptive and asynchronous routing network on a 2D-Torus chip and a design method thereof, wherein multiple asynchronous routing nodes are used to create the network on the chip according to a 2D-Torus topological structure and an asynchronous handshake communication mechanism; each asynchronous routing node respectively includes east, west, south, north and local ports, each port includes an input end, a data receiving module, a data decoding module, a routing calculation module, a crossbar switch module, a data mediation module, a data encoding module, a data transmitting module and an output end; the method comprises the following steps of: designing interface behavior of each port included in the asynchronous routing node, and describing the data flow direction in the asynchronous routing node; designing a data structure of transmission data from the asynchronous network on the chip; designing the module in the port by an asynchronous finite-state machine method; achieving hardware programming to each module; creating the asynchronous routing node; creating the N*N asynchronous network on the 2D-Torus chip.

Description

technical field [0001] The invention belongs to the field of asynchronous circuit design, and in particular relates to a route-adaptive asynchronous 2D-Torus (two-dimensional ring) on-chip network and a design method thereof. Background technique [0002] With the rapid development of integrated circuit technology, the scale of the system is getting larger and larger, and the clock frequency is getting higher and higher. Problems with traditional bus clocking and power consumption are becoming more and more difficult to solve. A network on chip (Network on Chip, NoC) can solve these problems very well, and has gradually become a standard communication architecture for multi-core on a chip. At present, most networks on a chip adopt a synchronous communication mechanism, and the communication between network nodes is driven by a single clock. Only a small number of on-chip networks use asynchronous communication mechanisms, and the communication between network nodes is cont...

AI Technical Summary

Problems solved by technology

However, this type of algorithm is passive and blind. It can only distribute and transmit data packets in advance, and cannot dynamically adjust the routing direction according to the congestion status in real time.

Therefore, when the network is congested, routing resources may be wasted, and the efficiency of data transmission will be reduced, which will eventually lead to a rapid decline in routing performance.

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