Gigabit Ethernet; Figure 16 - Io Card Ethernet Connector (E1) - Arrow einfochips eragon 660 Hardware Referance Manual

Hardware Reference Manual
USB1.S1
USB1.S2
USB1.S3
USB1.S4
6.3.7

Gigabit Ethernet

Gigabit Ethernet connectivity on ERAGON660 IO card is provided in below flow,
USB2.0 ->USB 2.0 HUB ->USB2.0 to Ethernet (MAC+PHY) to RJ45 connector
Second downstream port of USB Hub is connected with the Ethernet MAC controller. Then MAC
controller is interfaced with Ethernet PHY which supports 10,100 and 1000Mbps speed and at the end
Ethernet signals come to the RJ45 connector (E1) on IO card.
Pinout of E1 are as below,
Pin Number
E1.1 VDD_2V5_ETHERNET 2.5V Supply
E1.2 TR2N
E1.3 TR2P
E1.4 TR1P
E1.5 TR1N
E1.6 VDD_2V5_ETHERNET 2.5V Supply
E1.7 VDD_2V5_ETHERNET 2.5V Supply
E1.8 TR3P
E1.9 TR3N
E1.10 TR0N
E1.11 TR0P
Version 1.0
USB_SHEILD_GND
USB_SHEILD_GND
USB_SHEILD_GND
USB_SHEILD_GND
Table 17: USB2.0 Host connector (J33) Pinout
Figure 16 – IO Card Ethernet connector (E1)
Net Name
TXRXC Negative
TXRX2 Positive
TXRX1 Positive
TXRX1 Negative
TXRX3 Positive
TXRX3 Negative
TXRX0 Negative
TXRX0 Positive
Shield Ground
Shield Ground
Shield Ground
Shield Ground
Pin Function
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