Triple-Speed Ethernet IP Design Example User Guide: Agilex™ 3 and Agilex™ 5 FPGAs and SoCs

ID 813899
Date 8/04/2025
Public
Document Table of Contents

4.2.5. Interface Signals

Table 28.  10/100/1000 Ethernet MAC without Internal FIFO Buffers with 1000BASE-X/SGMII TBI PCS and Embedded PMA Signals (LVDS I/O) with IEEE 1588v2
Signal Direction Description
csr_clk Input

100 MHz reference clock for configuring the CSR registers.

iopll_refclk Input 125 MHz reference clock.
pcs_phase_measure_clk Input 125.49 MHz for latency measurement.
tx_serial_data Output Positive signal for the transmitter serial data.
tx_serial_data_n Output Negative signal for the transmitter serial data.
rx_serial_data Input Positive signal for the receiver serial data.
rx_serial_data_n Input Negative signal for the receiver serial data.