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GR-CPCIS-XCKU
Document Data Sheet & User Manual
Feb 2022, Version 1.2
Figure 7
On-Board SpaceWire Connections
SPW links which connect to the FPGA are implemented using using the LVDS differential
drivers/receivers implemented in the FPGA.
All SPW links which connect to the backplane (SPW1to SPW8) include resistors to provide Fail-
safe/Cold-Spare protection network as shown in Figure 8. This means the internal 100Ohm
differential pair termination inside the FPGA cannot be used for these links.
Figure 8
SPW fail-safe RX network