Intel® Agilex™ Hard Processor System Component Reference Manual
                    
                        ID
                        683581
                    
                
                
                    Date
                    2/07/2023
                
                
                    Public
                
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                                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 Intel® Agilex™ HPS Compontent Revision History
                            
                        
                    
                2.2.5.1. FPGA-to-HPS
    Turning on the Enable FPGA-to-HPS Interrupts option configures the HPS component to provide 64 general purpose FPGA-to-HPS interrupts, allowing soft IP in the FPGA fabric to trigger interrupts to the MPU’s generic interrupt controller (GIC). The interrupts are implemented through the following 32-bit interfaces: 
    
 
   - f2h_irq0—FPGA-to-HPS interrupts 0 through 31
 - f2h_irq1—FPGA-to-HPS interrupts 32 through 63
 
The FPGA-to-HPS interrupts are asynchronous on the FPGA interface. Inside the HPS, the interrupts are synchronized to the MPU’s internal peripheral clock (mpu_periph_clk).