Spx™ Expansion Bus; Versalogic Spx Expansion Modules - VersaLogic Python EBX-11 Reference Manual

SPX™ Expansion Bus
Up to four serial peripheral expansion (SPX) devices can be attached to the EBX-11 at connector
J17 using the CBR-1401 or CBR-1402 cable. The SPX interface provides the standard SPI
signals: SCLK, MISO, and MOSI, as well as four chip selects, SS0# to SS3#, and an interrupt
input, SINT#.
V L SPX E
ERSA OGIC
VersaLogic offers a number of SPX modules that provide a variety of standard functions, such as
analog input, digital I/O, CANbus controller, and others. These are small boards (1.2" x 3.775")
that can mount on the PC/104 and PC/104-Plus stack, using standard PC/104 stand-offs, or up to
two feet away from the base board. For more information, contact VersaLogic at
info@VersaLogic.com
EBX-11 Reference manual
Table 29: SPI Expansion Bus Connections
Signal
J17 Pin Name
1 V5_0
2 SCLK
3 GND
4 MISO
5 GND
6 MOSI
7 GND
8 SS0#
9 SS1#
10 SS2#
11 SS3#
12 GND
13 SINT#
14 V5_0
M
XPANSION ODULES
.
Interfaces and Connectors
Function
+5.0V
Serial Clock
Ground
Serial Data In
Ground
Serial Data Out
Ground
Chip Select 0
Chip Select 1
Chip Select 2
Chip Select 3
Ground
Interrupt Input
+5.0V
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