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2018
congatec
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TR44m17
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5.1.4
Ethernet
The conga-TR4 offers signals for one Gigabit Ethernet (GbE) port via GbE PHY or the integrated Intel
®
i210 controller (i211 available as assembly
option). The ethernet interface consists of four pairs of low voltage differential pair signals designated from GBE0_MDI0± to GBE0_MDI3±
plus control signals for link activity indicators. These signals can be used to connect to a 10/100/1000 BaseT RJ45 connector with integrated or
external isolation magnetics on the carrier board.
Note
The GBE0_LINK# output is only active during a 100Mbit or 1Gbit connection. It is not active during a 10Mbit connection. This is a limitation
of Ethernet controller since it only has 3 LED outputs - ACT#, LINK100# and LINK1000#.
The GBE0_LINK# signal is a logic AND of the GBE0_LINK100# and GBE0_LINK1000# signals on the conga-TR4.
Network Booting (PXE) is not possible with D-Link Switch Model No. DGS-1008D.
5.1.5
LPC Bus
conga-TR4 offers the Low Pin Count (LPC) bus via the integrated controller hub. The LPC bus corresponds approximately to a serialized ISA
bus yet with a significantly reduced number of signals. Due to the software compatibility to the ISA bus, I/O extensions such as additional serial
ports can be easily implemented on an application specific baseboard using this bus. Many devices are available for this cost-efficient, low-
speed interface designed to support low bandwidth and legacy devices. The LPC host bus controller supports one master DMA devices. See
section 9 "System Resources" for more information about the LPC Bus.
5.1.6
I²C Bus
The I²C bus is implemented through the congatec board controller and is accessed through the congatec CGOS driver and API. The controller
provides a fast mode multi-master I²C bus that has maximum I²C bandwidth.
