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1. Overview
2. Install and License the GTS Ethernet Intel® FPGA Hard IP
3. Configure and Generate Ethernet Hard IP variant
4. Integrate GTS Ethernet Intel® FPGA Hard IP into Your Application
5. Simulate, Compile, and Validate (MAC+PCS) - Single Instance
6. Simulate, Compile, and Validate (MII PCS Only /PCS66 OTN/PCS66 FlexE) - Single Instance
7. Simulate, Compile, and Validate SyncE - Single Instance
8. Simulate and Compile PTP1588 - Single Instance
9. Simulate, Compile, and Validate - Multiple Instance
10. Simulate, Compile, and Validate - Auto-Negotiation and Link Training
11. Troubleshoot and Diagnose Issues
A. Appendix A: Functional Description
B. Appendix B: Configuration Registers
C. Appendix C: Document Revision History for the GTS Ethernet Intel® FPGA Hard IP User Guide
4.1. Implement Required Clocking
4.2. Implement Required Resets
4.3. Connect the Status Interface
4.4. Connect the MAC Avalon Streaming Client Interface
4.5. Connect the MII PCS Only Client Interface
4.6. Connect the PCS66 Client Interface – FlexE and OTN
4.7. Connect the Precision Time Protocol Interface
4.8. Connect the Ethernet Hard IP Reconfiguration Interface
4.9. Connect the Auto-Negotiation and Link Training
4.1.1. Implement MAC Synchronous Clock Connections to Single Instance
4.1.2. Implement MAC Synchronous Clock Connections to Multiple Instances
4.1.3. Implement Clock Connections to MAC Asynchronous Operation
4.1.4. Implement Clock Connections in Synchronous Ethernet Operation (Sync-E)
4.1.5. Implement Clock Connections in PTP-Based Design
4.4.1.1. Drive the Ethernet Packet to the TX MAC Avalon Streaming Client Interface with Disabled Preamble Passthrough
4.4.1.2. Drive the Ethernet Packet on the TX MAC Avalon Streaming Client Interface with Enabled Preamble Passthrough
4.4.1.3. Use i_tx_skip_crc to Control Source Address, PAD, and CRC Insertion
4.4.1.4. Assert the i_tx_error to Invalidate a Packet
4.4.2.1. Receive Ethernet Frame on the RX MAC Avalon Streaming Client Interface with Preamble Passthrough Disabled
4.4.2.2. Receive Ethernet Frame with Preamble Passthrough Enabled
4.4.2.3. Receive Ethernet Frame with Remove CRC bytes Disabled
4.4.2.4. Monitor Status and Errors on the RX MAC Avalon Streaming Client Interface
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A.2.2. MAC RX Datapath
When the RX MAC in the channel is enabled, it receives Ethernet frames from the PHY and forwards them to the client with framing information together with the results of header and error checking functions.
You can configure whether to include or remove the PAD bytes and FCS using the Bytes to remove from RX Frames parameter.
Figure 81. Flow of Frame Through the MAC Avalon® Streaming Interface RX Without Preamble Pass-ThroughThe figure illustrates the typical flow of frame through the MAC RX when the preamble pass-through feature is turned off. In this figure, <p> is payload size, and <s> is the number of pad bytes (0–46 bytes).
Figure 82. Flow of Frame Through the MAC Avalon® Streaming Interface RX With Preamble Pass-Through The figure illustrates the typical flow of frame through the MAC RX when the preamble pass-through feature is turned on. In this figure, <p> is payload size, and <s> is the number of pad bytes (0–46 bytes).
The following sections describe the functions performed by the RX MAC: