Spx™ Expansion Bus; Figure 18. Spx Connector Location And Pin Configuration - VersaLogic Blackbird VL-EPU4562 Hardware Reference Manual

SPX™ Expansion Bus
Up to two serial peripheral expansion (SPX) devices can be attached to the Blackbird at
connector using a CBR-0901 cable. The SPX interface provides the standard serial peripheral
interface (SPI) signals: CLK, MISO, and MOSI, as well as two chip selects, SS0# and SS1#. The
+5 V power provided to pin 1 of the SPX connector is protected by a 1 A resettable fuse.
The figure below shows the location and pin orientation of the SPX connector.

Figure 18. SPX Connector Location and Pin Configuration

VL-EPU-4562/4462 Reference Manual
Multi-purpose I/O
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