KCU105 Board User Guide www.xilinx.com 47
UG917 (v1.4) September 25, 2015
Chapter 1: KCU105 Evaluation Board Features
For additional information about the enhanced Small Form Factor Pluggable (SFP+)
module, see the SFF-8431 specification [Ref 30].
10/100/1000 Mb/s Tri-Speed Ethernet PHY
[Figure 1-2, callout 17]
The KCU105 evaluation board uses the Marvell Alaska PHY device (M88E1111) at U58 for
Ethernet communications at 10 Mb/s, 100 Mb/s, or 1000 Mb/s. The board supports SGMII
mode only. The PHY connection to a user-provided Ethernet cable is through RJ-45
connector P3, a Halo HFJ11-1G01E-L12RL with built-in magnetics and status LEDs.
SFP_TX_FAULT Test Point J19
High = Fault
SFP1 P4
Low = Normal operation
SFP_TX_DISABLE Jumper J7
Off = SFP Disabled
On = SFP Enabled
SFP_MOD_DETECT Test Point J20
High = Module not present
Low = Module present
SFP_RS0 Jumper J44
Jumper pins 1-2 = Full RX bandwidth
Jumper pins 2-3 = Reduced RX bandwidth
SFP_RS1 Jumper J43
Jumper pins 1-2 = Full RX bandwidth
Jumper pins 2-3 = Reduced RX bandwidth
SFP_LOS Test Point J21
High = Loss of receiver signal
Low = Normal operation
Table 1-14: SFP0 and SFP1 Module Control and Status Connections (Cont’d)
SFP Control/Status
Signal
Board Connection
SFP
Module