Agilex™ 7 Hard Processor System Component Reference Manual
                    
                        ID
                        683581
                    
                
                
                    Date
                    10/08/2025
                
                
                    Public
                
            
                        
                        
                            
                                3.1. Simulation Flows
                            
                            
                        
                            
                                3.2. Clock and Reset Interfaces
                            
                            
                        
                            
                            
                                3.3. FPGA-to-HPS AXI* Slave Interface
                            
                        
                            
                            
                                3.4. HPS-to-FPGA AXI* Master Interface
                            
                        
                            
                            
                                3.5. Lightweight HPS-to-FPGA AXI* Master Interface
                            
                        
                            
                            
                                3.6. HPS-to-FPGA MPU Event Interface
                            
                        
                            
                            
                                3.7. Interrupts Interface
                            
                        
                            
                            
                                3.8. HPS-to-FPGA Debug APB Interface
                            
                        
                            
                            
                                3.9. FPGA-to-HPS System Trace Macrocell Hardware Event Interface
                            
                        
                            
                            
                                3.10. HPS-to-FPGA Cross-Trigger Interface
                            
                        
                            
                            
                                3.11. HPS-to-FPGA Trace Port Interface
                            
                        
                            
                            
                                3.12. FPGA-to-HPS DMA Handshake Interface
                            
                        
                            
                            
                                3.13. General Purpose Input Interface
                            
                        
                            
                            
                                3.14. EMIF Conduit
                            
                        
                            
                            
                                3.15. Simulating the Agilex™ 7 HPS Component Revision History
                            
                        
                    
                2.2.2.2. HPS to FPGA AXI-4 Master Interface
    The HPS-to-FPGA  AXI* -4 Master interface allows HPS masters to issue transactions to the FPGA fabric. You can use the: 
    
   - Enable/Data Width dropdown to configure this master interface's data widths to 32-, 64-, or 128-bit.
- Bridge address width is configurable from 32 bits down to 20 bits. When this bridge is enabled, the interfaces h2f_axi_master, h2f_axi_clock, and h2f_axi_reset are made available.
This bridge accepts a clock input from the FPGA fabric and performs clock domain crossing internally. The exposed AXI* interface operates on the same clock domain as the clock supplied by the FPGA fabric. Other interface standards in the FPGA fabric, such as connecting to Avalon® -MM interfaces, can be supported through the use of soft logic adapters. The Platform Designer system integration tool automatically generates adapter logic to connect AXI* to Avalon® -MM interfaces.