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2.1. Installation and Licensing
2.2. Generating aCPRI Intel® FPGA IP
2.3. CPRI Intel® FPGA IP Generated Files
2.4. CPRI Intel® FPGA IP Parameters
2.5. Integrating the CPRI IP into your Design: Required External Blocks
2.6. Simulating Intel FPGA IP Cores
2.7. Running the CPRI IP Design Example
2.8. CPRI Design Example Clocks
2.9. About the Testbench
2.10. Compiling the Full Design and Programming the FPGA
2.5.1. Adding the Transceiver TX PLL IP Core
2.5.2. Adding the Reset Controller
2.5.3. Adding the Transceiver Reconfiguration Controller
2.5.4. Adding the Off-Chip Clean-Up PLL
2.5.5. Adding and Connecting the Single-Trip Delay Calibration Blocks
2.5.6. CPRI IP Transceiver PLL Calibration
2.5.7. Reference and System PLL Clock for your IP Design
3.1. Interfaces Overview
3.2. CPRI Intel® FPGA IP Clocking Structure
3.3. CPRI Intel® FPGA IP Core Reset Requirements
3.4. Start-Up Sequence Following Reset
3.5. AUX Interface
3.6. Direct IQ Interface
3.7. Ctrl_AxC Interface
3.8. Direct Vendor Specific Access Interface
3.9. Real-Time Vendor Specific Interface
3.10. Direct HDLC Serial Interface
3.11. Direct L1 Control and Status Interface
3.12. L1 Debug Interface
3.13. Media Independent Interface (MII) to External Ethernet Block
3.14. Gigabit Media Independent Interface (GMII) to External Ethernet Block
3.15. CPU Interface to CPRI Intel® FPGA IP Registers
3.16. Auto-Rate Negotiation
3.17. Extended Delay Measurement
3.18. Deterministic Latency and Delay Measurement and Calibration
3.19. CPRI Intel® FPGA IP Transceiver and Transceiver Management Interfaces
3.20. Testing Features
3.19.1. CPRI Link
3.19.2. Main Transceiver Clock and Reset Signals
3.19.3. Arria V, Arria V GZ, Cyclone V, and Stratix V Transceiver Reconfiguration Interface
3.19.4. Arria® 10, Stratix® 10, and Agilex® 7 Transceiver Reconfiguration Interface
3.19.5. RS-FEC Interface
3.19.6. Interface to the External Reset Controller
3.19.7. Interface to the External PLL
3.19.8. Transceiver Debug Interface
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1. About the CPRI Intel® FPGA IP
Updated for: |
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Intel® Quartus® Prime Design Suite 24.1 |
IP Version 19.8.0 |
The Common Public Radio Interface (CPRI) Intel® FPGA IP implements the CPRI Specification V7.0 (2015-10-09). CPRI is a high-speed serial interface for network radio equipment controllers (REC) to receive data from and provide data to remote radio equipment (RE).
The CPRI Intel® FPGA IP targets high-performance, remote radio network applications. You can configure the CPRI Intel® FPGA IP as an RE or an REC.
This user guide describes CPRI MAC layer information and does not cover information related to CPRI PHY. For related information:
- About E-tile CPRI PHY, refer to the About the E-Tile CPRI PHY Intel FPGA IP of the E-tile Hard IP User Guide.
- About F-tile CPRI PHY, refer to the F-tile CPRI PHY Intel® FPGA IP User Guide.
- About GTS CPRI PHY, refer to the GTS CPRI PHY Intel® FPGA IP User Guide.
Figure 1. Typical CPRI Application on Intel FPGA DevicesExample system implementation with a two-hop daisy chain. Optical links between devices support high performance.