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1. About Triple-Speed Ethernet Intel® FPGA IP for Agilex™ 5 devices
2. Getting Started
3. Parameter Settings
4. Functional Description
5. Configuration Register Space
6. Interface Signals
7. Design Considerations
8. Timing Constraints
9. Testbench
10. Document Revision History for the Triple-Speed Ethernet Intel® FPGA IP User Guide: Agilex™ 5 FPGAs and SoCs
A. Ethernet Frame Format
B. Simulation Parameters
4.1.1. MAC Architecture
4.1.2. MAC Interfaces
4.1.3. MAC Transmit Datapath
4.1.4. MAC Receive Datapath
4.1.5. MAC Transmit and Receive Latencies
4.1.6. FIFO Buffer Thresholds
4.1.7. Congestion and Flow Control
4.1.8. Magic Packets
4.1.9. MAC Local Loopback
4.1.10. MAC Reset
4.1.11. PHY Management (MDIO)
4.1.12. Connecting MAC to External PHYs
6.1.1. 10/100/1000 Ethernet MAC Signals
6.1.2. 10/100/1000 Multiport Ethernet MAC Signals
6.1.3. 10/100/1000 Ethernet MAC with 1000BASE-X/SGMII PCS Signals
6.1.4. 10/100/1000 Ethernet MAC with Internal FIFO Buffers, and 1000BASE-X/SGMII 2XTBI PCS with Embedded PMA (GTS) Signals
6.1.5. 10/100/1000 Multiport Ethernet MAC with 1000BASE-X/SGMII PCS Signals
6.1.6. 1000BASE-X/SGMII PCS Signals
6.1.7. 1000BASE-X/SGMII 2XTBI PCS Signals
6.1.1.1. Clock and Reset Signals
6.1.1.2. Clock Enabler Signals
6.1.1.3. MAC Control Interface Signals
6.1.1.4. MAC Status Signals
6.1.1.5. MAC Receive Interface Signals
6.1.1.6. MAC Transmit Interface Signals
6.1.1.7. Pause and Magic Packet Signals
6.1.1.8. MII/GMII/RGMII Signals
6.1.1.9. PHY Management Signals
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6.2.8. MII Receive
On receive, all signals are sampled on the rising edge of rx_clk. The MII data enable signal m_rx_en is asserted by the PHY to indicate the start of a new frame and remains asserted until the last byte of the frame is present on m_rx_d[3:0] bus. Between frames, m_rx_en remains deasserted.
If the PHY detects an error on the frame received from the line, the PHY asserts the MII error signal, m_rx_err, for at least one clock cycle at any time during the frame transfer.
A frame received on the MII interface with a PHY error indication is subsequently transferred on the FIFO interface with the error signal rx_err[0] asserted.