Functional Description
CP6000
Page 2 - 16
© 2005 Kontron Modular Computers GmbH
ID 27942, Rev. 05
2794
2.05.UG.VC.051020/17275
8
P R E L I M I N A R Y
2.3.7
Gigabit Ethernet
The CP6000 board includes up to four 10Base-T/
100Base-TX/1000Base-T Ethernet ports based on the
Intel® 82546GB Gigabit Ethernet PCI-X Controller,
which is connected to the PCI-X interface.
The Intel® 82546GB Dual Gigabit Ethernet Controller
architecture is optimized to deliver high performance
with the lowest power consumption. The controller's
architecture includes independent transmit and re-
ceive queues to limit PCI bus traffic, and a PCI-X inter-
face that maximizes the use of bursts for efficient bus
usage.
The Boot from LAN feature is supported.
The Ethernet connectors are realized as RJ45 connectors. The interfaces provide automatic
detection and switching between 10Base-T, 100Base-TX and 1000Base-T data transmission.
Auto-wire switching for crossed cables is also supported.
RJ45 Connector J6A/B Pinouts
The J6A/B connector supplies the 10Base-T, 100Base-TX and 1000Base-T interfaces to the
Ethernet controller.
Note ...
The maximum length of cabling over which the Ethernet transmission can oper-
ate effectively depends upon the transceiver in use.
Table 2-14: Pinouts of J6A/B Based on the Implementation
MDI / STANDARD ETHERNET CABLE
PIN
MDIX / CROSSED ETHERNET CABLE
10BASE-T
100BASE-TX
1000BASE-T
10BASE-T
100BASE-TX
1000BASE-T
I/O SIGNAL I/O SIGNAL I/O SIGNAL
I/O SIGNAL I/O SIGNAL I/O SIGNAL
O
TX+
O
TX+
I/O
BI_DA+
1
I
RX+
I
RX+
I/O
BI_DB+
O
TX-
O
TX-
I/O
BI_DA-
2
I
RX-
I
RX-
I/O
BI_DB-
I
RX+
I
RX+
I/O
BI_DB+
3
O
TX+
O
TX+
I/O
BI_DA+
-
-
-
-
I/O
BI_DC+
4
-
-
-
-
I/O
BI_DD+
-
-
-
-
I/O
BI_DC-
5
-
-
-
-
I/O
BI_DD-
I
RX-
I
RX-
I/O
BI_DB-
6
O
TX-
O
TX-
I/O
BI_DA-
-
-
-
-
I/O
BI_DD+
7
-
-
-
-
I/O
BI_DC+
-
-
-
-
I/O
BI_DD-
8
-
-
-
-
I/O
BI_DC-
Figure 2-6: Dual Gigabit Ethernet
Connector J6A/B
8
1
8
1
J6A
J6B
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