ALTDQ_DQS2 Features
                            
                        
                            
                            
                                ALTDQ_DQS2 Device Support
                            
                        
                            
                            
                                Resource Utilization and Performance
                            
                        
                            
                            
                                ALTDQ_DQS2 Parameter Settings
                            
                        
                            
                                ALTDQ_DQS2 Data Paths
                            
                            
                        
                            
                                ALTDQ_DQS2 Ports
                            
                            
                        
                            
                                Dynamic Reconfiguration for ALTDQ_DQS2
                            
                            
                        
                            
                                Stratix V Design Example
                            
                            
                        
                            
                                Arria V Design Example
                            
                            
                        
                            
                                IP-Generate Command
                            
                            
                        
                            
                            
                                ALTDQ_DQS2 IP Core User Guide Archives
                            
                        
                            
                            
                                Document Revision History
                            
                        
                    
                
                                    
                                    
                                        
                                        
                                            I/O Configuration Block Bit Sequence for Arria V GZ and Stratix V Devices
                                        
                                        
                                    
                                        
                                        
                                            DQS Configuration Block Bit Sequence for Arria V GZ and Stratix V Devices
                                        
                                        
                                    
                                        
                                        
                                            I/O Configuration Block Bit Sequence for Arria V and Cyclone V Devices
                                        
                                        
                                    
                                        
                                        
                                            DQS Configuration Block Bit Sequence for Arria V and Cyclone V Devices
                                        
                                        
                                    
                                        
                                        
                                            Example Usage of Dynamic Reconfiguration for ALTDQ_DQS2
                                        
                                        
                                    
                                
                            ALTDQ_DQS2 PLL and DLL Ports
|   Port name  |  
        Type  |  
        Width  |  
        Description  |  
     
|---|---|---|---|
| dll_delayctrl_in[] |   Input  |  
        7  |  
        Receives the 7-bit delay settings from the dll_delayctrlout port of the ALTDLL instance. This 7-bit signal controls delay through the DQS delay chains. Compilation error occurs if this port is not connected to a DLL. This port is supported in Arria V, Cyclone V, and Stratix V devices.  |  
     
| fr_clock_in |   Input  |  
        1  |  
        Receives the full-rate clock signal from a clock pin, or the PLL clock output port. This port is supported in Arria V, Cyclone V, and Stratix V devices.  |  
     
| hr_clock_in |   Input  |  
        1  |  
        Receives the half-rate clock signal from a clock pin, or the PLL clock output port. This port is supported in Arria V, Cyclone V, and Stratix V devices.  |  
     
    Note: For more information about DLL in Stratix V device, refer to “Delay-Locked Loop” in the External Memory Interfaces in Stratix V Devices chapter of the Stratix V Device Handbook. 
   
 
  
    Note: For more information about PLL in Stratix V devices, refer to “PLL Specifications” in DC and Switching Characteristics for Stratix V Devices chapter of the Stratix V Device Handbook.