User's Manual l MBa6ULxL UM 0101 l © 2018, TQ-Systems GmbH
Page 13
4.2.3
Ethernet
Both i.MX6ULx MACs are provided on the MBa6ULxL via two SMSC PHYs LAN8720Ai. The PHYs are connected via RMII.
The implementation is shown in the following block diagram.
Illustration 9:
Block diagram Ethernet 100 BASE-T
Both RJ45 jacks contain integrated magnetics and two status LEDs.
The following tables show the pinout of the RJ45 receptacles.
Table 15:
Pinout Ethernet 1 – X14, left
Pin
Pin name
Signal
Direction
1
TX+
ETH1_MDI_TX_P
I/O
2
TX–
ETH1_MDI_TX_N
I/O
3
RX+
ETH1_MDI_RX_P
I/O
4
–
NC
–
5
–
NC
–
6
RX–
ETH1_MDI_RX_N
I/O
7
–
NC
–
8
–
NC
–
Table 16:
Pinout Ethernet 2 – X14, right
Pin
Pin name
Signal
Direction
1
TX+
ETH2_MDI_TX_P
I/O
2
TX–
ETH2_MDI_TX_N
I/O
3
RX+
ETH2_MDI_RX_P
I/O
4
–
NC
–
5
–
NC
–
6
RX–
ETH2_MDI_RX_N
I/O
7
–
NC
–
8
–
NC
–
The possible data throughput is influenced by the system load and the software platform used.
