Kontron 986LCD-M-mITX (BGA) - Manual (Page 42)

986LCD-M Family
KTD-N0837-B Public User Manual Date: 2012-04-17 Page 42 of 91
4.10 Ethernet connectors.
The 986LCD-M/mITX and 986LCD-M/ATXP boards supports 3 channels of 10/100/1000Mb Ethernet
RTL8111B LAN controllers.
The 986LCD-M/Flex and 986LCD-M/ATXE boards supports 2 channels of 10/100/1000Mb Ethernet
RTL8111B LAN controllers.
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]+ 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[0]-
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[1]-
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[2]-
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. MDI[3]-
Note: MDI = Media Dependent Interface.
4.10.1 Ethernet connector 1 (ETHER1)
Ethernet connector 1 is mounted together with USB Ports 0 and 2.
(Not available on 986LCD-M/Flex and 986LCD-M/ATXE).
The pinout of the RJ45 connector is as follows:
Signal PIN Type Ioh/Iol Note
MDI0+
MDI0-
MDI1+
MDI2+
MDI2-
MDI1-
MDI3+
MDI3-
8 7 6 5 4 3 2 1
On top of Ethernet1 connector there is a Green LED (to the left) turning on when a 100MHz connection is
made and it is flashing when 100MHz traffic is ongoing. The Yellow LED (to the right) turns on when a 1GHz
connection is made and it is flashing when traffic is ongoing.