10/100/1000 Mb/S Tri-Speed Ethernet Phy - Xilinx AC701 User Manual

Chapter 1: AC701 Evaluation Board Features
Table 1-14
Table 1-14: SFP+ Module Control and Status

10/100/1000 Mb/s Tri-Speed Ethernet PHY

[Figure
The AC701 board uses the Marvell Alaska PHY device (88E1116R) at U12 for Ethernet
communications at 10 Mb/s, 100 Mb/s, or 1,000 Mb/s. The board supports RGMII mode
only. The PHY connection to a user-provided ethernet cable is through a Halo
HFJ11-1G01E RJ-45 connector (P4) with built-in magnetics.
On power-up, or on reset, the PHY is configured to operate in RGMII mode with PHY
address 0b00111 using the settings shown in
via software commands passed over the MDIO interface.
36
lists the SFP+ module control and status connections.
SFP Control/Status
Signal
SFP_TX_FAULT Test Point J22
High = Fault
Low = Normal Operation
SFP_TX_DISABLE Jumper J6 (and FPGA pin R18)
Off = FP Disabled
On = SFP Enabled
SFP_MOD_DETECT Test Point J21
High = Module Not Present
Low = Module Present
SFP_RS0 Jumper J38
Jumper Pins 1-2 = Full RX Bandwidth
Jumper Pins 2-3 = Reduced RX Bandwidth
SFP_RS1 Jumper J39
Jumper Pins 1-2 = Full TX Bandwidth
Jumper Pins 2-3 = Reduced TX Bandwidth
SFP_LOS Test Point J20
High = Loss of Receiver Signal
Low = Normal Operation
1-2, callout 14]
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Board Connection
Table 1-15. These settings can be overwritten
AC701 Evaluation Board
UG952 (v1.0) October 23, 2012