Gigabit Ethernet; Dual Gigabit Ethernet Connector J6A/B - Kontron CP308 User Manual

CP308
2.3.6

Gigabit Ethernet

The CP308 board includes two 10Base-T/100Base-TX/
1000Base-T Ethernet ports based on two Intel® 82574L
Gigabit Ethernet controllers, which are connected to the
x1 PCI Express interfaces of the ICH9M-SFF.
The Intel® 82574L Gigabit Ethernet Controller's archi-
tecture is optimized to deliver high performance with
the lowest power consumption. The controller's archi-
tecture includes independent transmit and receive
queues and a PCI Express interface that maximizes the
use of bursts for efficient bus usage.
The Boot-from-LAN and Wake-on-LAN features are
supported. Wake-on-LAN is available on all Ethernet interfaces. After an operating system
shutdown, a 1000Base-T Gigabit connection is automatically reduced to 100 Mbit or 10 Mbit
operation and the Ethernet controller waits to receive a broadcast or unicast packet with an ex-
plicit data pattern to assert a signal or a PME message to wake up the system. If the main pow-
er is switched off after an OS shutdown, a 5V standby supply must be provided over the J2 rear
I/O CompactPCI connector to continue powering the Wake-on-LAN relevant devices.
Note ...
The Ethernet transmission can operate effectively using a CAT5 cable with a
maximum length of 100 m.
The Ethernet connectors are realized as RJ-45 connectors. The interfaces provide automatic
detection and switching between 10Base-T, 100Base-TX and 1000Base-T data transmission
(Auto-Negotiation). Auto-wire switching for crossed cables is also supported (Auto-MDI/X).
RJ-45 Connector J6A/B Pinout
The J6A/B connector supplies the 10Base-T, 100Base-TX and 1000Base-T interfaces to the
Ethernet controller.
Table 2-12: Pinout of J6A/B Based on the Implementation
MDI / STANDARD ETHERNET CABLE
10BASE-T 100BASE-TX
I/O SIGNAL I/O SIGNAL I/O SIGNAL
O TX+ O
O TX- O
I RX+ I
- - -
- - -
I RX- I
- - -
- - -
ID 1027-4487, Rev. 3.0
1000BASE-T
TX+ I/O BI_DA+
TX- I/O BI_DA-
RX+ I/O BI_DB+
- I/O BI_DC+
- I/O BI_DC-
RX- I/O BI_DB-
- I/O BI_DD+
- I/O BI_DD-
Functional Description
Figure 2-3: Dual Gigabit Ethernet
J6A
J6B
MDIX / CROSSED ETHERNET CABLE
PIN 10BASE-T 100BASE-TX
I/O SIGNAL I/O SIGNAL I/O SIGNAL
1 I RX+
2 I RX-
3 O TX+
4 - -
5 - -
6 O TX-
7 - -
8 - -
Connector J6A/B
8
1
8
1
1000BASE-T
I RX+ I/O BI_DB+
I RX- I/O BI_DB-
O TX+ I/O BI_DA+
- - I/O BI_DD+
- - I/O BI_DD-
O TX- I/O BI_DA-
- - I/O BI_DC+
- - I/O BI_DC-
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