Ethernet Interface; Table 3-9. Ethernet Interface Pin Signal Descriptions (J8) - ADLINK Technology CoreModule 720 Reference Manual

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Chapter 3

Ethernet Interface

The CoreModule 720 supports one Gigabit Ethernet interface. The Ethernet interface is implemented from
the 82574IT Ethernet controller and provides oneGLAN interface, which occupies PCI Express port 2. The
Ethernet function supports multi-speed operation at 10/100/1000 Mbps and operates in full-duplex at all
supported speeds or half duplex at 10/100 Mbps while adhering to the IEEE 802.3x flow control
specification. The Ethernet interface offers the following features:
Full duplex or half duplex support at 10 Mbps, 100 Mbps, or 1000 Mbps
In full duplex mode, the Ethernet controller adheres to the IEEE 802.3x Flow Control specification
In half duplex mode, performance is enhanced by a proprietary collision reduction mechanism
IEEE 802.3 compatible physical layer to wire transformer
IEEE 802.3u Auto-Negotiation support
Fast back-to-back transmission support with minimum interframe spacing (IFS)
IEEE 802.3x auto-negotiation support for speed and duplex operation
On-board magnetics (Ethernet isolation transformer)
Table 3-9
describes the pin signals of the Ethernet interface, which consists of a two-row, 10-pin shrouded
header in two rows of odd/even (1,2) pin sequence, and 0.079" (2mm) pitch.

Table 3-9. Ethernet Interface Pin Signal Descriptions (J8)

Pin # Signal
1
GND
2
GND
3
MDI0+
4
MDI0-
5
MDI1+
6
MDI1-
7
MDI2+
8
MDI2-
9
MDI3+
10
MDI3-
Note: The shaded table cells denote ground.
NOTE
The magnetics (isolation transformer, T1) for the Ethernet connector is included
on the CoreModule 720.
26
Description
Ground
Media Dependent Interface 0 +/-
Media Dependent Interface 1 +/-
Media Dependent Interface 2 +/-
Media Dependent Interface 3 +/-
Reference Manual
Hardware
CoreModule 720

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