Functional Description
AM4100
Page 2 - 12
ID 36126, Rev. 2.0
P R E L I M I N A R Y
2.3.5.1
Gigabit Ethernet Connectors
The Ethernet connectors, J2 and J3 are realized as
RJ45 connectors. The interfaces provides automatic
detection and switching between 10Base-T, 100Base-
TX and 1000Base-T data transmission (Auto-Negotia-
tion). Auto-wire switching for crossed cables is also
supported (Auto-MDI/X).
The J2 connector is connected to the MPC8641D’s
TSEC4 whereas J3 is connected to TSEC2.
Ethernet LED Status
ACT (green):
This LED monitors network connection and activity. The LED lights up when a
valid link (cable connection) has been established. The LED goes temporarily off if network
packets are being sent or received through the RJ45 port. When this LED remains off, a valid
link has not been established due to a missing or a faulty cable connection.
SPEED (green/yellow):
This LED lights up to indicate a successful 100Base-TX or
1000BASE-T connection. When green it indicates a 100Base-TX connection and when yellow
it indicates a 1000Base-T connection. When not lit and the ACT-LED is active, the connection
is operating at 10Base-T.
Table 2-6:
Gigabit Ethernet Con. J2/J3 Pinout 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-
1
8
1
8
J3
(GbE A)
J2
(GbE B)
Figure 2-3: Gigabit Ethernet
Connectors J2/J3
Summary of Contents for AM4100
Page 19: ...AM4100 Introduction ID 36126 Rev 2 0 Page 1 1 Introduction Chapter 1 1 P R E L I M I N A R Y...
Page 57: ...AM4100 Installation ID 36126 Rev 2 0 Page 3 1 Installation Chapter 1 3 P R E L I M I N A R Y...
Page 65: ...AM4100 Configuration ID 36126 Rev 2 0 Page 4 1 Configuration Chapter 1 4 P R E L I M I N A R Y...
Page 89: ...AM4100 NetBootLoader ID 36126 Rev 2 0 Page 5 1 NetBootLoader Chapter 1 5 P R E L I M I N A R Y...
