886LCD-M Family
KTD-00474-E
Public User Manual
Date: 2005-05-24
Page
40 of 78
4.9 Ethernet
connectors.
The 886LCD-M/Flex, 886LCD-M/ATX and 886LCD-M/mITX boards supports 3 channels of 10/100/1000Mb
Ethernet.
In order to achieve the specified performance of the Ethernet port, Category 5 twisted pair cables must be
used with 10/100MB and Category 5E, 6 or 6E with 1Gb LAN networks.
The signals for the Ethernet ports are as follows:
Signal
Description
MDI[0]+
MDI[0]-
In MDI mode, this is the first pair in 1000Base-T, i.e. the BI_DA+/- pair, and is the transmit
pair in 10Base-T and 100Base-TX.
In MDI crossover mode, this pair acts as the BI_DB+/- pair, and is the receive pair in
10Base-T and 100Base-TX.
MDI[1]+
MDI[1]-
In MDI mode, this is the second pair in 1000Base-T, i.e. the BI_DB+/- pair, and is the
receive pair in 10Base-T and 100Base-TX.
In MDI crossover mode, this pair acts as the BI_DA+/- pair, and is the transmit pair in
10Base-T and 100Base-TX.
MDI[2]+
MDI[2]-
In MDI mode, this is the third pair in 1000Base-T, i.e. the BI_DC+/- pair.
In MDI crossover mode, this pair acts as the BI_DD+/- pair.
MDI[3]+
MDI[3]-
In MDI mode, this is the fourth pair in 1000Base-T, i.e. the BI_DD+/- pair.
In MDI crossover mode, this pair acts as the BI_DC+/- pair.
Note: MDI = Media Dependent Interface.
4.9.1 Ethernet connector 1 (ETHER1)
Ethernet connector 1 is mounted together with USB Ports 0 and 2.
The pinout of the RJ45 connector is as follows:
Signal
PIN
Type
Ioh/Iol
Note
MDI0+
MDI0-
MDI1+
MDI1-
MDI2+
MDI2-
MDI3+
MDI3-
8
7
6
5
4
3
2
1