Port state machine control circuit for ADVB protocol

Abstract

The invention belongs to the technical field of integrated circuit design and relates to a port state machine control circuit for an ADVB protocol. The port state machine control circuit includes a link control unit (1) and a protocol control unit (2). According to the scheme of the invention, aiming at the ADVB protocol, an inherent FC-AV protocol is simplified, the process of executing a primitive sequence protocol and the jump of an FC-2 layer port state machine is not required, the port state is simple, and thus the state machine only needs two states that are an activated state and an offline state. A sending end can submit data to an FC link in the case of meeting sending conditions, and a receiving end can receive the data in the case of achieving link synchronization. The circuit mode realized by the scheme of the invention is simple, the characteristics of container-based transmission modes, one-way transmission and the like can be supported, the advantages of high reliabilityand small size can also be realized, and the protocol requirements for remote transmission of video images can be met.

Description

technical field [0001] The invention belongs to integrated circuit design technology, in particular to a port state machine control circuit for ADVB protocol. Background technique [0002] The circuit interconnection method based on the FC-AV (Fibre Channel-Audio Video) audio and video protocol and video transmission and forwarding protocol is relatively complicated, and there is uncertainty in transmission delay due to channel congestion in the network, contention for links or exchange delays. problems, resulting in the disadvantages of high data transmission delay. [0003] At the same time, the transmission mechanism based on the FC-AV (Fibre Channel-Audio Video) audio and video protocol is relatively complicated, requiring operations such as connection initialization, flow control, and port registration required for switching. And it requires the cooperative work of the switch, and consumes a lot of audio and video transmission resources for point-to-point one-way conne...

AI Technical Summary

Problems solved by technology

[0002] The circuit interconnection based on the FC-AV (Fibre Channel-Audio Video) audio and video protocol and video transmission and forwarding protocol is relatively complex, and there is uncertainty in transmission delay due to channel congestion in the network, contention for links or exchange delays. problems, resulting in the disadvantages of high data transmission delay

[0003] At the same time, the transmission mechanism based on the FC-AV (Fibre Channel-Audio Video) audio and video protocol is relatively complicated, requiring operations such as connection initialization, flow control, and port registration required for switching.

And it needs the cooperative work of the switch, and the audio and video transmission resource consumption of point-to-point one-way connection is relatively large, so it is not suitable for the characteristics of fast real-time transmission of audio and video

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