Ethernet Interface; Bios Configuration; Status Led; Ethernet Connector - VersaLogic Python EBX-11 Reference Manual

Ethernet Interface

The EBX-11 features two Intel 82551ER Fast Ethernet controllers on-board. While these
controllers are not NE2000-compatible, they are widely supported. Drivers are readily available
to support a variety of operating systems. See VersaLogic website for latest OS support.
BIOS C
ONFIGURATION
Each Ethernet controller can be enabled or disabled in CMOS Setup. Ethernet interface 0 (J1)
uses PCI interrupt "INTA#" and Ethernet interface 1 (J2) uses PCI interrupt "INTB#". CMOS
Setup is used to select the IRQ line routed to each PCI interrupt line.
S LED
TATUS
Each Ethernet controller has a two-colored LED located next to its RJ-45 connector to provide an
indication of the Ethernet status as follows:
Green LED (Link):


Yellow LED (Activity):


E C
THERNET ONNECTOR
Board-mounted RJ-45 connectors are provided to make connections with Category 5 Ethernet
cables. The 82551ER Ethernet controller auto-detects 10BaseT/100Base-TX connectors.
These connectors use IEC 61000-4-2-rated TVS components to help protect against ESD
damage.
J1/J2
Pin
1
2
3
4
5
6
7
8
EBX-11 Reference manual
ON Active Ethernet cable plugged in
OFF Active cable not plugged in
or cable not plugged into active hub
ON Activity detected on cable
OFF No Activity detected on cable
Table 20: RJ-45 Ethernet Connector
Fast Ethernet
Signal
Name Function
T+ Transmit Data +
Transmit Data -
T-
R+ Receive Data +
IGND Isolated Ground
IGND Isolated Ground
Receive Data -
R-
IGND Isolated Ground
IGND Isolated Ground
Gigabit Ethernet
Signal
Name Function
MID0+ Media Dependent Interface [0]+
MID0- Media Dependent Interface [0]-
MID1+ Media Dependent Interface [1]+
MID2+ Media Dependent Interface [2]+
MID2- Media Dependent Interface [2]-
MID1- Media Dependent Interface [1]-
MID3+ Media Dependent Interface [3]+
MID3- Media Dependent Interface [3]-
Interfaces and Connectors
42