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Peripherals 9
miriac SBC-S32V User Manual
V 1.1
73/81
© MicroSys Electronics GmbH 2017
9.8
LEDs
The CRX-S32V carrier contains 5 LEDs. There is one power led, two user LEDs
and two ethernet traffic indicators. The green power led located underneath the
power switch indicates the supply of +12V. The yellow user led, located under the
HDMI connector, is connected to the CPU port PA8 and the red user led directly
under the LAN jack uses CPU port PA9. The ethernet LEDs are integrated into the
RJ45
jack
and indicate link status and traffic.
Led
Color
ON
OFF
Description
LD1
green
Power Switch On
Power Switch Off
+12V applied
LD2
yellow
CPU-PA8=high
CPU-PA8=low
Uses FLXR-TXD signal
LD3
red
CPU-PA9=high
CPU-PA9=low
Uses FLXR-RXD signal
LAN-B
yellow
Receive / Transmit
no traffic
KSZ9031 LED1 Control
LAN-C
yellow
Link active
no link
KSZ9031 LED2 Control
Figure 45: Carrier LEDs