P&E Microcomputer Systems xPC56XXMB User Manual - page 15
of
37
xPC56XXMB User Manual
11
Figure 3-2: LEDs circuitry schematic
3.3
Buttons
There are four user buttons available on the xPC56XXMB.
J8 – Buttons Enable
Controls whether the buttons on the xPC56XXMB motherboard are
connected to I/O pins of the processor. The exact pins used are dependent on
the specific Mini-Module plugged into the motherboard. Please refer to the
1+2 (default
on)
LED1 connected to processor I/O pin
3+4 (default
on)
LED2 connected to processor I/O pin
5+6 (default
on)
LED3 connected to processor I/O pin
7+8 (default
on)
LED4 connected to processor I/O pin