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The application of high speed data bus on the satellites having several remote sensors could not only satisfy the demand of high speed data transfer,but also could reuse the equipment at both the com-ponent and subsystem levels for other space missions,thus reducing the costs of on-board processing system integration.In this article,a special high speed data bus with simple interfaces is chosen for transferring the data produced by remote sensors and other instrumentations.First,the function and the structure of the data bus are discussed carefully.And then,the bus controller,which is a key mod-ule of the data bus,is designed.At last,the function and performance of the bus controller are verified by VHDL simulation.
The application of high speed data bus on the satellites having several remote sensors could not only only demand the high speed data transfer, but could also reuse the equipment at both the com-ponent and subsystem levels for other space missions, thereby reducing the costs of on-board processing system integration. This article, a special high speed data bus with simple interfaces is chosen for transferring the data produced by remote sensors and other instruments. First, the function and the structure of the data bus are discussed carefully. And then, the bus controller, which is a key mod-ule of the data bus, is designed. At last, the function and performance of the bus controller are verified by VHDL simulation.