
Board Features
EPM-31 Hardware Reference Manual
29
LEDs/Indicators
Figure 11 shows the locations of the boards LEDs/indicators.
LED
Description
For more information, see…
D5
Ethernet Port 0 status LED
D2
Ethernet Port 1 status LED
D9/D8
PCIe Mini Card LEDs
D11
SATA/mSATA Activity LED
D12
Power status LEDs
Figure 11. Locations of the LEDs/Indicators
P
ROGRAMMABLE
LED
User I/O connector J4 includes an output signal for attaching a software controlled LED.
Connect the cathode of the LED to J4, pin 16; connect the anode to +3.3 V. An on-board 120
Ω
resistor limits the current when the circuit is turned on. A programmable LED is provided on the
CBR-4005B paddleboard. See Figure 27 on page 59 for the location of the Programmable LED
on the CBR-4005B paddleboard.
For instructions on how to switch the Programmable LED on and off, refer to the
EPM
-
31
Programmer’s Reference Manual
(available on the
EPM-31 Product Support Web Page
).