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1. About the PHY Lite for Parallel Interfaces IP
2. PHY Lite for Parallel Interfaces FPGA IP for Agilex™ 3 C-Series Devices
3. PHY Lite for Parallel Interfaces FPGA IP for Agilex™ 5 D-Series and E-Series Devices
4. PHY Lite for Parallel Interfaces FPGA IP for Agilex™ 7 M-Series Devices
5. PHY Lite for Parallel Interfaces FPGA IP for Agilex™ 7 F-Series and I-Series Devices
6. PHY Lite for Parallel Interfaces FPGA IP for Stratix® 10 Devices
7. PHY Lite for Parallel Interfaces FPGA IP for Arria® 10 and Cyclone® 10 GX Devices
8. PHY Lite for Parallel Interfaces FPGA IP User Guide Document Archives
9. Document Revision History for the PHY Lite for Parallel Interfaces FPGA IP User Guide
6.5.6.4.1. Timing Closure: Dynamic Reconfiguration
6.5.6.4.2. Timing Closure: Input Strobe Setup and Hold Delay Constraints
6.5.6.4.3. Timing Closure: Output Strobe Setup and Hold Delay Constraints
6.5.6.4.4. Timing Closure: Non Edge-Aligned Input Data
6.5.6.4.5. I/O Timing Violation
6.5.6.4.6. Internal FPGA Path Timing Violation
7.5.6.4.1. Timing Closure: Dynamic Reconfiguration
7.5.6.4.2. Timing Closure: Input Strobe Setup and Hold Delay Constraints
7.5.6.4.3. Timing Closure: Output Strobe Setup and Hold Delay Constraints
7.5.6.4.4. Timing Closure: Non Edge-Aligned Input Data
7.5.6.4.5. I/O Timing Violation
7.5.6.4.6. Internal FPGA Path Timing Violation
Visible to Intel only — GUID: ftu1599621520437
Ixiasoft
5.2.3.1. Clocks
The PHY Lite for Parallel Interfaces FPGA IP sources a reference clock from a dedicated clock pin to the PLL inside the IP. This PLL provides four clock domains for the output and input paths.
Clock Domain | Description |
---|---|
Core clock | The IP generates this clock internally and uses it for all transfers between the FPGA core fabric and I/O banks. The clock phase alignment (CPA) circuitry keeps the clock in phase with the PHY clock for transfers between the core and the periphery. |
PHY clock | The IP uses this clock internally for PHY circuitry running at the same frequency as the core clock. |
VCO clock | The PLL generates this clock internally. The input and output paths use the VCO clock to generate interpolator delays that compensates for PVT variations. |
Interface clock | This is the clock frequency of the external device connected to the FPGA I/Os. |
Core Clock Rate | Speed Grade –1 (MHz) | Speed Grade –2 (MHz) | Speed Grade –3 (MHz) | |||
---|---|---|---|---|---|---|
Min | Max | Min | Max | Min | Max | |
Quarter | 100 | 1,200 | 100 | 933 | 100 | 933 |
Half | 100 | 800 | 100 | 666 | 100 | 600 |
Full | 100 | 400 | 100 | 333 | 100 | 300 |