EBX-38 Hardware Reference Manual
46
Expansion Interfaces
SPX™ Expansion Bus
Up to four serial peripheral expansion (SPX) devices can be attached to the EBX-38 at connector
J19 using a CBR-1401 or 1402 cable. The SPX interface provides the standard serial peripheral
interface (SPI) signals: CLK, MISO, and MOSI, as well as four chip selects, SS0#, SS1#, SS2#,
and SS3# and INT#. 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 of the SPX connector.
Figure 23. J19 SPX Connector Location and Pin Configuration
9
