SpaceWire bus router supporting host interface

Abstract

The invention discloses a SpaceWire bus router supporting a host interface. The SpaceWire bus router comprises a SpaceWire port module, a routing switching control module, a configuration port module,a register group and a host interface module. The SpaceWire port module is used for sending data on a SpaceWire link to the routing switching control module or sending the data of the routing switching control module to the SpaceWire link; the routing switching control module is used for performing routing control on the data among the SpaceWire port module, the configuration port module and thehost interface module; the configuration port module parses a RMAP command packet; the register group is used for performing router configuration and status monitoring; and the host interface module is connected with an external processor, and supports the external processor to perform read and write operations on the SpaceWire bus router. The SpaceWire bus router reduces the complexity of the system, expands the access mode and improves the reliability of data transmission.

Description

technical field [0001] The invention belongs to the field of integrated circuit design and is used for communication and data exchange between electronic devices on board, and relates to a SpaceWire bus router supporting a host interface. Background technique [0002] SpaceWire bus is a high-speed, point-to-point, full-duplex serial bus network, which can meet the data processing requirements of aerospace electronic systems for high-speed, expandable, low-power, and low-cost onboard data bus. It can meet the use requirements of data transmission interfaces such as high-speed sensors, large-capacity solid-state memory, processing units and downlink telemetry subsystems, and provide an integrated data processing network. It is convenient to establish a high-performance spacecraft data processing system, realize the miniaturization of electronic systems, reduce system overhead, and facilitate the reuse of data processing equipment in aerospace applications. SpaceWire technolog...

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is: overcome the deficiencies in the prior art, provide a kind of SpaceWire bus router that supports host interface, solve through host interface, can be directly connected with the IO bus of spaceflight special processor BM3803, AT697, solve user When designing the system, the problem of high cost and complex design; through the host interface, data packets can be sent and received, and the register bank can be...

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