SpaceWire PCIe

127 - STAR-Dundee

The SpaceWire PCI Express (PCIe) board is the latest addition to STAR-Dundee’s SpaceWire interface device family. It provides three SpaceWire interfaces with the optimised host software supporting high bandwidth transmission of SpaceWire packets directly to and from the host PC. The three SpaceWire interfaces of the SpaceWire PCIe are each fully compliant to the SpaceWire standard and operate at up to 300 Mbits/s. Not only an interface device, the SpaceWire PCIe also contains powerful routing capabilities and an RMAP Target.

The device can also be used as a router. The router facilitates packets from one SpaceWire port to be routed to another SpaceWire port or into the host PC via the PCIe interface. There are three independent channels from the SpaceWire router to the PCIe interface, so traffic flowing over one port cannot block traffic for another port. In addition there is a separate control channel, so that the host PC is always able to access the control, configuration and status space of the PCIe regardless of the data flow.