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1. Overview
2. Getting Started
3. F-Tile Ethernet Intel® FPGA Hard IP Parameters
4. Functional Description
5. Clocks
6. Resets
7. Interface Overview
8. Configuration Registers
9. Supported Modules and IPs
10. Supported Tools
11. F-Tile Ethernet Intel® FPGA Hard IP User Guide Archives
12. Document Revision History for F-Tile Ethernet Intel® FPGA Hard IP User Guide
4.4.1. Features
4.4.2. PTP Timestamp Accuracy
4.4.3. PTP Client Flow
4.4.4. RX Virtual Lane Offset Calculation for No FEC Variants
4.4.5. Virtual Lane Order and Offset Values
4.4.6. UI Adjustment
4.4.7. Reference Time Interval
4.4.8. Minimum and Maximum Reference Time (TAM) Interval for UI Measurement (Hardware)
4.4.9. UI Value and PMA Delay
4.4.10. Routing Delay Adjustment for Advanced Timestamp Accuracy Mode
5.1. Clock Connections in Single Instance Operation
5.2. Clock Connections in Multiple Instance Operation
5.3. Clock Connections in MAC Asynchronous FIFO Operation
5.4. Clock Connections in PTP-Based Synchronous and Asynchronous Operation
5.5. Clock Connections in Synchronous Ethernet Operation
5.6. Custom Cadence
7.1. Status Interface
7.2. TX MAC Avalon ST Client Interface
7.3. RX MAC Avalon ST Aligned Client Interface
7.4. TX MAC Segmented Client Interface
7.5. RX MAC Segmented Client Interface
7.6. MAC Flow Control Interface
7.7. PCS Mode TX Interface
7.8. PCS Mode RX Interface
7.9. FlexE and OTN Mode TX Interface
7.10. FlexE and OTN Mode RX Interface
7.11. Custom Rate Interface
7.12. Deterministic Latency Interface
7.13. 32-bit Soft CWBIN Counters
7.14. Reconfiguration Interfaces
7.15. Precision Time Protocol Interface
7.2.1. TX MAC Avalon ST Client Interface with Disabled Preamble Passthrough
7.2.2. TX MAC Avalon ST Client Interface with Enabled Preamble Passthrough
7.2.3. Using MAC Avalon ST skip_crc Signal to Control Source Address, PAD, and CRC Insertion
7.2.4. Using MAC Avalon ST i_tx_error Signal to Mark Packets Invalid
7.4.1. TX MAC Segmented Client Interface with Disabled Preamble Passthrough
7.4.2. TX MAC Segmented Client Interface with Enabled Preamble Passthrough
7.4.3. Using MAC Segmented skip_crc Signal to Control Source Address, PAD, and CRC Insertion
7.4.4. Using MAC Segmented i_tx_mac_error to Mark Packets Invalid
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4.3.1. PCS Mode
The F-Tile Ethernet Intel® FPGA Hard IP supports PCS only mode in 10GE/25GE/50GE/100GE/200GE/400GE Ethernet rate variants with optional RS-FEC feature.
The TX PCS datapath consists of:
- TX PCS encoder—encodes the data from the PMA interface.
- TX PCS scrambler—enables the data to be scrambled. Channels does not lock correctly if the data is not scrambled.
- Alignment insertion—the TX PCS interface inserts alignment markers.
- Striper—enables logically sequential data to be segmented to increase data throughput.
The RX PCS datapath consists of:
- Aligner—enables the alignment of incoming data.
- RX PCS descrambler—enables the incoming scrambled data to be descrambled.
- RX PCS decoder—decodes the incoming encoded data from the PMA interface.