Arria V Avalon-ST Interface for PCIe Solutions: User Guide
                    
                        ID
                        683660
                    
                
                
                    Date
                    5/12/2017
                
                
                    Public
                
            
                
                    
                        1. Datasheet
                    
                    
                
                    
                        2. Getting Started with the Arria V Hard IP for PCI Express
                    
                    
                
                    
                        3. Parameter Settings
                    
                    
                
                    
                        4. Interfaces and Signal Descriptions
                    
                    
                
                    
                        5. Registers
                    
                    
                
                    
                        6. Interrupts
                    
                    
                
                    
                        7. Error Handling
                    
                    
                
                    
                        8. IP Core Architecture
                    
                    
                
                    
                        9. Transaction Layer Protocol (TLP) Details
                    
                    
                
                    
                        10. Throughput Optimization
                    
                    
                
                    
                        11. Design Implementation
                    
                    
                
                    
                        12. Additional Features
                    
                    
                
                    
                    
                        13. Hard IP Reconfiguration
                    
                
                    
                        14. Transceiver PHY IP Reconfiguration
                    
                    
                
                    
                        15. Testbench and Design Example
                    
                    
                
                    
                        16. Debugging
                    
                    
                
                    
                    
                        A. Frequently Asked Questions for PCI Express
                    
                
                    
                    
                        B. Lane Initialization and Reversal
                    
                
                    
                        C. Document Revision History
                    
                    
                
            
        
                        
                        
                            
                            
                                1.1. Arria V Avalon-ST Interface for PCIe Datasheet
                            
                        
                            
                            
                                1.2. Features
                            
                        
                            
                            
                                1.3. Release Information
                            
                        
                            
                            
                                1.4. Device Family Support
                            
                        
                            
                            
                                1.5. Configurations
                            
                        
                            
                            
                                1.6. Example Designs
                            
                        
                            
                            
                                1.7. Debug Features
                            
                        
                            
                                1.8. IP Core Verification
                            
                            
                        
                            
                            
                                1.9. Performance and Resource Utilization
                            
                        
                            
                            
                                1.10. Recommended Speed Grades
                            
                        
                            
                            
                                1.11. Creating a Design for PCI Express
                            
                        
                    
                
                        
                        
                            
                            
                                4.1. Clock Signals
                            
                        
                            
                            
                                4.2. Reset, Status, and Link Training Signals
                            
                        
                            
                            
                                4.3. ECRC Forwarding
                            
                        
                            
                            
                                4.4. Error Signals
                            
                        
                            
                            
                                4.5. Interrupts for Endpoints
                            
                        
                            
                            
                                4.6. Interrupts for Root Ports
                            
                        
                            
                            
                                4.7. Completion Side Band Signals
                            
                        
                            
                            
                                4.8. LMI Signals
                            
                        
                            
                                4.9. Transaction Layer Configuration Space Signals
                            
                            
                        
                            
                            
                                4.10. Hard IP Reconfiguration Interface
                            
                        
                            
                            
                                4.11. Power Management Signals
                            
                        
                            
                                4.12. Physical Layer Interface Signals
                            
                            
                        
                    
                
                                    
                                    
                                        
                                        
                                            15.6.1. ebfm_barwr Procedure
                                        
                                        
                                    
                                        
                                        
                                            15.6.2. ebfm_barwr_imm Procedure
                                        
                                        
                                    
                                        
                                        
                                            15.6.3. ebfm_barrd_wait Procedure
                                        
                                        
                                    
                                        
                                        
                                            15.6.4. ebfm_barrd_nowt Procedure
                                        
                                        
                                    
                                        
                                        
                                            15.6.5. ebfm_cfgwr_imm_wait Procedure
                                        
                                        
                                    
                                        
                                        
                                            15.6.6. ebfm_cfgwr_imm_nowt Procedure
                                        
                                        
                                    
                                        
                                        
                                            15.6.7. ebfm_cfgrd_wait Procedure
                                        
                                        
                                    
                                        
                                        
                                            15.6.8. ebfm_cfgrd_nowt Procedure
                                        
                                        
                                    
                                        
                                            15.6.9. BFM Configuration Procedures
                                        
                                        
                                        
                                    
                                        
                                            15.6.10. BFM Shared Memory Access Procedures
                                        
                                        
                                        
                                    
                                        
                                            15.6.11. BFM Log and Message Procedures
                                        
                                        
                                        
                                    
                                        
                                            15.6.12. Verilog HDL Formatting Functions
                                        
                                        
                                        
                                    
                                
                            
                                    
                                    
                                        
                                        
                                            15.7.1. Changing Between Serial and PIPE Simulation
                                        
                                        
                                    
                                        
                                        
                                            15.7.2. Using the PIPE Interface for Gen1 and Gen2 Variants
                                        
                                        
                                    
                                        
                                        
                                            15.7.3. Viewing the Important PIPE Interface Signals
                                        
                                        
                                    
                                        
                                        
                                            15.7.4. Disabling the Scrambler for Gen1 and Gen2 Simulations
                                        
                                        
                                    
                                        
                                        
                                            15.7.5. Disabling 8B/10B Encoding and Decoding for Gen1 and Gen2 Simulations
                                        
                                        
                                    
                                        
                                        
                                            15.7.6. Changing between the Hard and Soft Reset Controller
                                        
                                        
                                    
                                
                            
   Clock Domains and Clock Generation for the Application LayerThe following illustrates the clock domains when using coreclkout_hip to drive the Application Layer and the pld_clk of the IP core. The Intel-provided example design connects coreclkout_hip to the pld_clk. However, this connection is not mandatory. Inside the Hard IP for  PCI Express* , the blocks shown in white are in the pclk domain, while the blocks shown in yellow are in the coreclkout_hip domain.
    
     
  
 
  As this figure indicates, the IP core includes the following clock domains: pclk, coreclkout_hip and pld_clk.