Cyclone® V Hard Processor System Technical Reference Manual

ID 683126
Date 8/28/2023
Public
Document Table of Contents

2.2.8.1. EMACs

The two EMACs are based on the Synopsys* DesignWare* 3504‑0 Universal 10/100/1000 Ethernet MAC and offer the following features:

  • Supports 10, 100, and 1000 Mbps standard
  • Integrated DMA controller
  • Supports the PHY interfaces using the HPS I/O pins:
    • Reduced gigabit media independent interface (RGMII)
  • Supports the PHY interfaces using adaptor logic to route signals to the FPGA I/O pins:
    • Media independent interface (MII)
    • Gigabit media independent interface (GMII)
    • Reduced gigabit media independent interface (RGMII)
    • Serial gigabit media independent interface (SGMII) supported through the GMII to FPGA fabric with additional external conversion logic
  • The Ethernet Controller has two choices for the management control interface used for configuration and status monitoring of the PHY
    • Management data input/output (MDIO)
    • I2C PHY management through a separate I2C module within the HPS
  • Supports IEEE 1588-2002 and IEEE 1588-2008 standards for precision networked clock synchronization
  • IEEE 802.3-az, version D2.0 of Energy Efficient Ethernet
  • Supports IEEE 802.1Q VLAN tag detection for reception frames
  • Supports a variety of address filtering modes