A network-on-chip data transmission device and method with hierarchical protection
A data transmission device and network-on-chip technology, which is applied in digital transmission systems, transmission systems, data exchange networks, etc., can solve problems affecting the transmission performance of the network-on-chip, high router cache overhead, and increased transmission power consumption, so as to reduce transmission delays and power consumption overhead, reduce latency and power consumption overhead, and reduce the effect of frequent operations
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[0037] Such as figure 1As shown, an embodiment of the present invention is described by taking a Mesh2x2 network topology structure as an example. The functions realized by the device are: headflit hop-to-hop (hop-by-hop) protection and data packet end-to-end (end-to-end) protection. The device includes a data encoding unit, a header protection unit and a data decoding unit. Among them, the data encoding unit and the data decoding unit are respectively located in the network interface of the sending end and the network interface of the receiving end, and are used to implement error-tolerant encoding and decoding of data packets, and perform end-to-end decoding when the number of errors exceeds the error-correcting capability of error-tolerant encoding. Retransmit the packet. Retransmitted packets are stored in the retransmission buffer of the sending network interface. The header protection unit is located in the router of the on-chip network, and is used to realize the pro...
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