eCPRI Intel® FPGA IP User Guide

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ID 683685
Date 8/16/2024
Public
Document Table of Contents
Document Table of Contents x
1. About the eCPRI IP 2. Getting Started 3. eCPRI IP Parameters 4. Functional Description 5. Interface Overview 6. eCPRI IP Registers 7. eCPRI Intel FPGA IP User Guide Archives 8. Document Revision History for the eCPRI Intel® FPGA IP User Guide
1. About the eCPRI IP x
1.1. eCPRI Intel® FPGA IP Features 1.2. eCPRI IP Device Family Support 1.3. eCPRI Intel® FPGA IP Device Speed Grade Support 1.4. eCPRI IP Resource Utilization 1.5. Intel® FPGA IP Core Verification 1.6. eCPRI IP Release Information
2. Getting Started x
2.1. Installing and Licensing 2.2. Specifying the IP Core Parameters and Options 2.3. eCPRI IP Generated File Structure 2.4. Simulating the eCPRI IP 2.5. Compiling the Full Design and Programming the FPGA
2.2. Specifying the IP Core Parameters and Options x
2.2.1. Reference and System PLL Clock for your IP Design
4. Functional Description x
4.1. Interfaces 4.2. High Level Data Path Flow 4.3. Operation of the eCPRI IP Blocks
4.2. High Level Data Path Flow x
4.2.1. Transmit TX Path 4.2.2. Receive RX Path 4.2.3. Supported Ethernet Variants
4.3. Operation of the eCPRI IP Blocks x
4.3.1. Packet Classifier 4.3.2. Ethernet Header Insertion/Removal 4.3.3. Concatenation/De-concatenation 4.3.4. Header Mapper/De-Mapper 4.3.5. eCPRI IWF Type 0 4.3.6. eCPRI Message 5 Packet Parser 4.3.7. Packet Queue 4.3.8. eCPRI Message Type 4.3.9. Error Handling 4.3.10. RX Throttling
4.3.8. eCPRI Message Type x
4.3.8.1. eCPRI Message Type 0- IQ Data Transfer 4.3.8.2. eCPRI Message Type 1- Bit Sequence Transfer 4.3.8.3. eCPRI Message Type 2- Real Time Control Data 4.3.8.4. eCPRI Message Type 3- Generic Data Transfer 4.3.8.5. eCPRI Message Type 4- Remote Memory Access 4.3.8.6. eCPRI Message Type 5- One-Way Delay Measurement 4.3.8.7. eCPRI Message Type 6- Remote Reset 4.3.8.8. eCPRI Message Type 7- Event Indication 4.3.8.9. eCPRI Message Type 64- 255 Vendor Specific
5. Interface Overview x
5.1. eCPRI IP Clock Signals 5.2. Power, Reset, and Firewalls Signals 5.3. TX Time of Day Interface 5.4. RX Time of Day Interface 5.5. Interrupt 5.6. Configuration Avalon® Memory-Mapped Interface 5.7. Ethernet MAC Source Interface 5.8. Ethernet MAC Sink Interface 5.9. External ST Source Interface 5.10. External ST Sink Interface 5.11. eCPRI IP Source Interface 5.12. eCPRI IP Sink Interface 5.13. Miscellaneous Interface Signals 5.14. IWF Type 0 eCPRI Interface 5.15. IWF Type 0 CPRI MAC Interface
5.2. Power, Reset, and Firewalls Signals x
5.2.1. Reset Control and Initialization Flows
5.7. Ethernet MAC Source Interface x
5.7.1. E-tile Hard IP for Ethernet 1588 PTP Signals 5.7.2. 25G Ethernet MAC 1588 PTP Signals 5.7.3. 10G Ethernet MAC 1588 PTP Signals 5.7.4. F-Tile Ethernet Hard IP 1588 PTP Signals 5.7.5. Agilex 5 Device Ethernet Hard IP 1588 PTP Signals
5.14. IWF Type 0 eCPRI Interface x
5.14.1. IWF Source Interface 5.14.2. IWF Sink Interface
5.15. IWF Type 0 CPRI MAC Interface x
5.15.1. CPRI 32-bit IQ Data TX Interface 5.15.2. CPRI 64-bit IQ Data TX Interface 5.15.3. CPRI 32-bit Ctrl_AxC TX Interface 5.15.4. CPRI 64-bit Ctrl_AxC TX Interface 5.15.5. CPRI 32-bit Vendor Specific TX Interface 5.15.6. CPRI 64-bit Vendor Specific TX Interface 5.15.7. CPRI 32-bit Real-time Vendor Specific TX Interface 5.15.8. CPRI 64-bit Real-time Vendor Specific TX Interface 5.15.9. CPRI Gigabit Media Independent Interface (GMII) 5.15.10. CPRI IP L1 Control and Status Interface
1. About the eCPRI IP
2. Getting Started
3. eCPRI IP Parameters
4. Functional Description
5. Interface Overview
6. eCPRI IP Registers
7. eCPRI Intel FPGA IP User Guide Archives
8. Document Revision History for the eCPRI Intel® FPGA IP User Guide

5.2.1. Reset Control and Initialization Flows

Figure 21. eCPRI IP Core Reset Logic

Three reset ports of the eCPRI IP assert together to fully reset the eCPRI IP. The deassertion of these three signals can happen together or the IP can just deassert rst_csr_n signal follows by rst_tx_n and rst_rx_n signals depending on use case.

You should perform reset before beginning IP core operation. Alternatively, you can trigger reset after you reconfigure the eCPRI IP during run time.

Reset Length Requirement

You need to assert reset signals for additional ten cycles after tx_lanes_stable and rx_pcs_ready signals are asserted to ensure the Ethernet MAC clocks are stable and run at designated speed. The avst_sink_ready, and mac_sink_ready signals are asserted when the IP core exists from reset successfully and ready to accept client data.

Level Two Title