eCPRI Intel® FPGA IP User Guide

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ID 683685
Date 11/11/2021
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Document Table of Contents
Document Table of Contents x
1. Introduction 2. Getting Started 3. IP Parameters 4. Functional Description 5. Interface Overview 6. Registers 7. eCPRI Intel FPGA IP User Guide Archives 8. Document Revision History for eCPRI Intel® FPGA IP User Guide
1. Introduction x
1.1. Supported Features 1.2. Device Family Support 1.3. eCPRI Intel® FPGA IP Device Speed Grade Support 1.4. Resource Utilization 1.5. Intel® FPGA IP Core Verification 1.6. Release Information
2. Getting Started x
2.1. Installing and Licensing 2.2. Specifying the IP Core Parameters and Options 2.3. Generated File Structure 2.4. Simulating the IP Core 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. 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-MM 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
5.14. 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
6. Registers x
6.1. eCPRI Version Register 6.2. eCPRI Scratch Register 6.3. eCPRI Common Control Register 6.4. eCPRI Message 5 Control Register 6.5. eCPRI TX Error Message Register 6.6. eCPRI RX Error Message Register 6.7. eCPRI Error Mask Message Register 6.8. eCPRI Error Log Message Register 6.9. eCPRI Error Message 5 Compensation Value 0 Register 6.10. eCPRI Error Message 5 Compensation Value 1 Register 6.11. eCPRI Transport Delay 0 Register 6.12. eCPRI Transport Delay 1 Register 6.13. eCPRI Transport Delay 2 Register 6.14. Ethernet Frame Scratch Register 6.15. Source MAC Address <i> Register, where i= 0, 1 6.16. Destination MAC n Address <i> Register, where n= 0, 1, 2, 3, 4, 5, 6, 7 and i= 0, 1 6.17. VLAN Tag Register <i>, where i= 0, 1, 2, 3, 4, 5, 6, 7 6.18. Ethertype Register 6.19. IPv4 Dw0 Register 6.20. IPv4 Dw1 Register 6.21. IPv4 Dw2 Register 6.22. IPv4 Source Address Register 6.23. IPv4 Destination Address Register 6.24. UDP Dw0 Register 6.25. UDP Port Register 6.26. MAC Packet Type Enable Register 6.27. RX Error Register
1. Introduction
2. Getting Started
3. IP Parameters
4. Functional Description
5. Interface Overview
6. Registers
7. eCPRI Intel FPGA IP User Guide Archives
8. Document Revision History for eCPRI Intel® FPGA IP User Guide

6.6. eCPRI RX Error Message Register

Table 59.  eCPRI RX Error Message Register at Offset 0x0005
Register Bit Width Description Access Reset
ecpri_rx_err_msg [31:16] Reserved RO 0x0
[15] Invalid concatenation bit received RW1C 0x0
[14] Payload length/Size mismatch RW1C 0x0
[13] Message 4 buffer mode error. Valid values are:
  • 1'b0- Now error
  • 1'b1- Pending request queue overflow
RW1C 0x0
[12] Timeout no memory access response RW1C 0x0
[11] Timeout no reset response RW1C 0x0
[10] Timeout no response (message type 5) RW1C 0x0
[9] RX message 5 error.

This bit indicates that an error packet received from the MAC is for message type 5.

RW1C 0x0
[8] Invalid response message received.

This bit indicates that the eCPRI message 5 packet parser receives invalid eCPRI action type.

RW1C 0x0
[7] Invalid follow up message received.

Example, parser expects eCPRI Follow up messages but receives other messages.

RW1C 0x0
[6] Invalid request messages received.

This bit indicates that the eCPRI message 5 packet parser receives invalid eCPRI action type.

Example, parser receives messages other than expects to receive eCPRI request, remote request ore request with follow up message

RW1C 0x0
[5] Invalid measurement ID received RW1C 0x0
[4] Invalid eCPRI message type

This bit indicates that the IP received message type 8 to 63.

When you enable Pair with ORAN option, the IP supports only message type 0, 2, and 5. All other message types are invalid and set this bit.

RW1C 0x0
[3] M20K ECC error RW1C 0x0
[2] Buffer overflow error RW1C 0x0
[1] Missing EOP RW1C 0x0
[0] Missing SOP RW1C 0x0
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