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                        1. Agilex™ 7 M-Series General-Purpose I/O Overview
                    
                    
                
                    
                        2. Agilex™ 7 M-Series GPIO-B Banks
                    
                    
                
                    
                        3. Agilex™ 7 M-Series HPS I/O Banks
                    
                    
                
                    
                        4. Agilex™ 7 M-Series SDM I/O Banks
                    
                    
                
                    
                    
                        5. Agilex™ 7 M-Series I/O Troubleshooting Guidelines
                    
                
                    
                        6. GPIO Intel® FPGA IP
                    
                    
                
                    
                        7. Programmable I/O Features Description
                    
                    
                
                    
                    
                        8. Documentation Related to the Agilex™ 7 General-Purpose I/O User Guide: M-Series
                    
                
                    
                    
                        9. Document Revision History for the Agilex™ 7 General-Purpose I/O User Guide: M-Series
                    
                
            
        
                                    
                                    
                                        
                                        
                                            2.5.1. I/O Standard Placement Restrictions for True Differential I/Os
                                        
                                        
                                    
                                        
                                        
                                            2.5.2. Placement Restrictions for True Differential and Single-Ended I/O Standards in the Same or Adjacent GPIO-B Bank
                                        
                                        
                                    
                                        
                                        
                                            2.5.3. VREF Sources and Input Standards Grouping
                                        
                                        
                                    
                                        
                                        
                                            2.5.4. GPIO-B Pin Restrictions for External Memory Interfaces
                                        
                                        
                                    
                                        
                                        
                                            2.5.5. RZQ Pin Requirement
                                        
                                        
                                    
                                        
                                        
                                            2.5.6. I/O Standards Implementation Based on VCCIO_PIO Voltages
                                        
                                        
                                    
                                        
                                        
                                            2.5.7. I/O Standard Selection and I/O Bank Supply Compatibility Check
                                        
                                        
                                    
                                        
                                        
                                            2.5.8. Simultaneous Switching Noise
                                        
                                        
                                    
                                        
                                        
                                            2.5.9. HPS Shared I/O Requirements
                                        
                                        
                                    
                                        
                                        
                                            2.5.10. Clocking Requirements
                                        
                                        
                                    
                                        
                                        
                                            2.5.11. SDM Shared I/O Requirements
                                        
                                        
                                    
                                        
                                        
                                            2.5.12. Unused Pins
                                        
                                        
                                    
                                        
                                        
                                            2.5.13. VCCIO_PIO Supply for Unused GPIO-B Banks
                                        
                                        
                                    
                                        
                                        
                                            2.5.14. GPIO-B Pins During Power Sequencing
                                        
                                        
                                    
                                        
                                        
                                            2.5.15. Drive Strength Requirement for GPIO-B Input Pins
                                        
                                        
                                    
                                        
                                        
                                            2.5.16. Maximum DC Current Restrictions
                                        
                                        
                                    
                                        
                                        
                                            2.5.17. 1.05 V, 1.1 V, or 1.2 V I/O Interface Voltage Level Compatibility
                                        
                                        
                                    
                                        
                                        
                                            2.5.18. Connection to True Differential Signaling Input Buffers During Device Reconfiguration
                                        
                                        
                                    
                                        
                                        
                                            2.5.19. LVSTL700 I/O Standards Differential Pin Pair Requirements
                                        
                                        
                                    
                                        
                                        
                                            2.5.20. Implementing a Pseudo Open Drain
                                        
                                        
                                    
                                        
                                        
                                            2.5.21. Allowed Duration for Using RT OCT
                                        
                                        
                                    
                                        
                                        
                                            2.5.22. Single-Ended Strobe Signal Differential Pin Pair Restriction
                                        
                                        
                                    
                                
                            
                        
                        
                            
                            
                                6.1. Release Information for GPIO Intel® FPGA IP
                            
                        
                            
                                6.2. Generating the GPIO Intel® FPGA IP
                            
                            
                        
                            
                                6.3. GPIO Intel® FPGA IP Parameter Settings
                            
                            
                        
                            
                                6.4. GPIO Intel® FPGA IP Interface Signals
                            
                            
                        
                            
                                6.5. GPIO Intel® FPGA IP Architecture
                            
                            
                        
                            
                            
                                6.6. Verifying Resource Utilization and Design Performance
                            
                        
                            
                                6.7. GPIO Intel® FPGA IP Timing
                            
                            
                        
                            
                                6.8. GPIO Intel® FPGA IP Design Examples
                            
                            
                        
                    
                3.3.1. Configuring Open Drain Feature for the HPS I/O
 You can turn on the open drain feature for the HPS I/Os through the Hard Processor System Intel® Agilex™ 7 / Agilex™ 9 FPGA IP in the  Quartus® Prime Platform Designer. 
  
 
  
    Figure 24.  Hard Processor System Intel® Agilex™ 7 / Agilex™ 9 FPGA IP Parameter Editor
     
     
      
      
     
 
     
   
 
  - From the Quartus® Prime menu, select Tools > Platform Designer
 - Specify the Quartus project and Platform Designer system, then click Open.
 - In Platform Designer, open the Hard Processor System Intel® Agilex™ 7 / Agilex™ 9 FPGA IP parameter editor.
 - Navigate to the Pin Mux and Peripherals > Pin Mux GUI > Advanced > Advanced IP Placement tab.
 - If you make any changes, click Apply Selections, then click OK.
 - Scroll down to the HPS IO Open Drain Select section.
 - Turn on the HPS IONN Open Drain Enable that you want.
 
    Figure 25. HPS IO Open Drain Select Section
     
     
      
      
     
 
     
   
 
  
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