Part 3.8: Sfp Interface - Alinx ZYNQ UltraScale+ User Manual

Part 3.8: SFP Interface

The AXU15EG FPGA carrier board has two optical interfaces. Users can
purchase SFP optical modules (1.25G, 2.5G, 10G optical modules on the
market) and insert them into these two optical interfaces for optical data
communication. The two fiber interfaces are connected to the two RX/TX of the
GNK transceiver of ZYNQ BANK228, and the data rate of each TX
transmission and RX reception is up to 12.5Gb/s. The reference clock of the
GTH transceiver is provided by the 125M differential clock of the core board.
The SFP Schematic detailed is shown in Figure 3-8-1:
SFP ZYNQ pin assignment:
Signal Name ZYNQ Pin Name
SFP1_TX_N 228_TX2_N
SFP1_TX_P 228_TX2_P
SFP1_RX_N 228_RX2_N
SFP1_RX_P 228_RX2_P
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ZYNQ Ultrascale + FPGA Board AXU9EG User Manual
Figure 3-8-1: SFP Schematic
ZYNQ Pin
Number
N3
N4
M1
M2
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Description
Optical Module 1 Data Transmit Negative
Optical Module 1 Data Transmit Positive
Optical Module 1 Data Receive Negative
Optical Module 1 Data Receive Positive