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The SpaceFibre provides numerous advantages over the SpaceWire: QoS, FDIR, high transmission rate, galvanic isolation, lower cable mass. At moderate speeds, e.g. 10-200 Mbps, the SpaceFibre interface implementation can be significantly simplified with oversampling techniques, which does not require PLLs and analog CDR blocks. It makes possible fully digital implementation of the SpaceFibre interface in a simple ASIC or FPGA. This paper presents an oversampling technique based on digital signal processing. The technique allows to enhance transmission rate, operational distance, phase/amplitude distortion tolerance and higher noise immunity in compare with the traditional edge detection method.Index Terms -SpaceWire, SpaceFibre, oversampling, clock and data recovery.

Тhe article presents a Radiation tolerant heterogeneous Multi-core ASIC MC-30SF6 as the SoC (Systemon-Chip) for the onboard "intelligent" signals and images processing systems. MC-30SF6 based on a CMOS 180nm Radiation tolerant library and consists of the five ELVEES IPcores for the processing and compression data with extra performance more than 9 GFLOPs. The SoC design and architecture support fault tolerance against SEU errors. SoC has built-in multichannel multiprotocol SpaceFibre/GigaSpaceWire (SpaceWire-RUS standard)/SpaceWire embedded networking subsystem. The networking subsystem provides multiple ports for high-rate interconnection with combination of SpaceWire/GigaSpaceWire/SpaceFibre links. SoC support four ports GigaSpaceWire/two ports SpaceWire switch. Input and processed data streams transmitted via 1.25 Gbps two multiprotocol SpaceFibre/GigaSpaceWire and four GigaSpaceWire links. Two SpaceWire links (ECSS-Е-50-12С) provide data transfer bandwidth from 2 up to 400 Mbps. The MC-30SF6 embedded networking subsystem on the base SpaceWire/GigaSpaceWire/SpaceFibre provide a balance between ASIC throughput and SoC performance especially for the multifunctional micro and nanosatellites systems.Index Terms -Radiation tolerant heterogeneous Multicore ASIC, multiprotocol SpaceFibre/GigaSpaceWire based links

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