Single-Ended I/O Standards Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Single-Ended SSTL, HSTL, and HSUL I/O Reference Voltage Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Single-Ended SSTL, HSTL, and HSUL I/O Standards Signal Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Differential SSTL I/O Standards Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Differential HSTL and HSUL I/O Standards Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Differential I/O Standards Specifications
                                                                
                                                                
                                                            
                                                        
                                                    
                                                
                                                
                                                    
                                                    
                                                        High-Speed I/O Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        DPA Lock Time Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        LVDS Soft-CDR/DPA Sinusoidal Jitter Tolerance Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        Memory Standards Supported by the Hard Memory Controller
                                                    
                                                    
                                                
                                                    
                                                    
                                                        DLL Range Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        DQS Logic Block Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        Memory Output Clock Jitter Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        OCT Calibration Block Specifications
                                                    
                                                    
                                                
                                            
                                        
                                    
                                    
                                        
                                        
                                            POR Specifications
                                        
                                        
                                    
                                        
                                        
                                            JTAG Configuration Timing
                                        
                                        
                                    
                                        
                                            FPP Configuration Timing
                                        
                                        
                                        
                                    
                                        
                                        
                                            AS Configuration Timing
                                        
                                        
                                    
                                        
                                        
                                            DCLK Frequency Specification in the AS Configuration Scheme
                                        
                                        
                                    
                                        
                                        
                                            PS Configuration Timing
                                        
                                        
                                    
                                        
                                        
                                            Initialization
                                        
                                        
                                    
                                        
                                        
                                            Configuration Files
                                        
                                        
                                    
                                        
                                        
                                            Minimum Configuration Time Estimation
                                        
                                        
                                    
                                        
                                        
                                            Remote System Upgrades
                                        
                                        
                                    
                                        
                                        
                                            User Watchdog Internal Circuitry Timing Specifications
                                        
                                        
                                    
                                
                            High-Speed I/O Specifications
| Symbol | Condition | –E5, –I5 | –E6, –I6 | Unit | |||||
|---|---|---|---|---|---|---|---|---|---|
| Min | Typ | Max | Min | Typ | Max | ||||
| fHSCLK_in (input clock frequency) True Differential I/O Standards | Clock boost factor W = 1 to 40 57 | 10 | — | 700 | 10 | — | 625 | MHz | |
| fHSCLK_in (input clock frequency) Single Ended I/O Standards | Clock boost factor W = 1 to 40 57 | 10 | — | 625 | 10 | — | 525 | MHz | |
| fHSCLK_OUT (output clock frequency) | — | — | — | 700 58 | — | — | 625 58 | MHz | |
| Transmitter | True Differential I/O Standards - fHSDR (data rate) 59 | SERDES factor J = 4 to 10 60 61 62 | 62 | — | 1434 | 62 | — | 1250 | Mbps | 
| SERDES factor J = 3 60 61 62 | 62 | — | 1076 | 62 | — | 938 | Mbps | ||
| SERDES factor J = 2, uses DDR registers | 62 | — | 275 63 | 62 | — | 250 63 | Mbps | ||
| SERDES factor J = 1, uses DDR registers | 62 | — | 275 63 | 62 | — | 250 63 | Mbps | ||
| tx Jitter - True Differential I/O Standards | Total jitter for data rate, 600 Mbps – 1.6 Gbps | — | — | 200 | — | — | 250 | ps | |
| Total jitter for data rate, < 600 Mbps | — | — | 0.12 | — | — | 0.15 | UI | ||
| tDUTY 64 | TX output clock duty cycle for Differential I/O Standards | 45 | 50 | 55 | 45 | 50 | 55 | % | |
| tRISE & & tFALL 61 65 | True Differential I/O Standards | — | — | 180 | — | — | 200 | ps | |
| TCCS 64 59 | True Differential I/O Standards | — | — | 150 | — | — | 150 | ps | |
| Receiver | True Differential I/O Standards - fHSDRDPA (data rate) | SERDES factor J = 4 to 10 60 61 62 | 150 | — | 1434 | 150 | — | 1250 | Mbps | 
| SERDES factor J = 3 60 61 62 | 150 | — | 1076 | 150 | — | 938 | Mbps | ||
| fHSDR (data rate) (without DPA) 59 | SERDES factor J = 3 to 10 | 62 | — | 66 | 62 | — | 66 | Mbps | |
| SERDES factor J = 2, uses DDR registers | 62 | — | 63 | 62 | — | 63 | Mbps | ||
| SERDES factor J = 1, uses DDR registers | 62 | — | 63 | 62 | — | 63 | Mbps | ||
| DPA (FIFO mode) | DPA run length | — | — | — | 10000 | — | — | 10000 | UI | 
| DPA (soft CDR mode) | DPA run length | SGMII/GbE protocol | — | — | 5 | — | — | 5 | UI | 
| All other protocols | — | — | 50 data transition per 208 UI | — | — | 50 data transition per 208 UI | — | ||
| Soft CDR mode | Soft-CDR ppm tolerance | — | — | — | 300 | — | — | 300 | ± ppm | 
| Non DPA mode | Sampling Window | — | — | — | 300 | — | — | 300 | ps | 
  57 Clock Boost Factor (W) is the ratio between the input data rate and the input clock rate. 
 
 
 
  58 This is achieved by using the PHY clock network. 
 
 
 
  59 Requires package skew compensation with PCB trace length. 
 
 
 
  60 The Fmax specification is based on the fast clock used for serial data. The interface Fmax is also dependent on the parallel clock domain which is design dependent and requires timing analysis. 
 
 
 
  61 The VCC and VCCP must be on a combined power layer and a maximum load of 5 pF for chip-to-chip interface. 
 
 
 
  62 The minimum specification depends on the clock source (for example, the PLL and clock pin) and the clock routing resource (global, regional, or local) that you use. The I/O differential buffer and serializer do not have a minimum toggle rate. 
 
 
 
  63 The maximum ideal data rate is the SERDES factor (J) x the PLL maximum output frequency (fOUT) provided you can close the design timing and the signal integrity meets the interface requirements. 
 
 
 
  64 Not applicable for DIVCLK = 1. 
 
 
 
  65 This applies to default pre-emphasis and VOD settings only. 
 
 
 
  66 You can estimate the achievable maximum data rate for non-DPA mode by performing link timing closure analysis. You must consider the board skew margin, transmitter delay margin, and receiver sampling margin to determine the maximum data rate supported.