PHY Lite for Parallel Interfaces Intel® FPGA IP User Guide
ID
683716
Date
1/12/2024
Public
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1. About the PHY Lite for Parallel Interfaces IP
2. PHY Lite for Parallel Interfaces Intel® FPGA IP (phylite_ph2) for Intel Agilex® 7 M-Series Devices
3. PHY Lite for Parallel Interfaces Intel® FPGA IP (altera_phylite_s20) for Intel Agilex® 7 F-Series and I-Series Devices
4. PHY Lite for Parallel Interfaces Intel® FPGA IP for Intel® Stratix® 10 Devices
5. PHY Lite for Parallel Interfaces Intel® FPGA IP for Intel® Arria® 10 and Intel® Cyclone® 10 GX Devices
6. PHY Lite for Parallel Interfaces Intel® FPGA IP User Guide Document Archives
7. Document Revision History for the PHY Lite for Parallel Interfaces Intel® FPGA IP User Guide
3.2.1. Intel Agilex® 7 F-Series and I-Series I/O Sub-bank Interconnects
3.2.2. Intel Agilex® 7 F-Series and I-Series Input DQS/Strobe Tree
3.2.3. PHY Lite for Parallel Interfaces Intel® FPGA IP for Intel Agilex® 7 F-Series and I-Series Devices Top Level Interfaces
3.2.4. Dynamic Reconfiguration
3.2.5. I/O Timing
4.5.6.4.1. Timing Closure: Dynamic Reconfiguration
4.5.6.4.2. Timing Closure: Input Strobe Setup and Hold Delay Constraints
4.5.6.4.3. Timing Closure: Output Strobe Setup and Hold Delay Constraints
4.5.6.4.4. Timing Closure: Non Edge-Aligned Input Data
4.5.6.4.5. I/O Timing Violation
4.5.6.4.6. Internal FPGA Path Timing Violation
5.5.6.4.1. Timing Closure: Dynamic Reconfiguration
5.5.6.4.2. Timing Closure: Input Strobe Setup and Hold Delay Constraints
5.5.6.4.3. Timing Closure: Output Strobe Setup and Hold Delay Constraints
5.5.6.4.4. Timing Closure: Non Edge-Aligned Input Data
5.5.6.4.5. I/O Timing Violation
5.5.6.4.6. Internal FPGA Path Timing Violation
5.2.2. Clocks
The PHY Lite for Parallel Interfaces Intel® FPGA IP uses a reference clock that is sourced 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 | This clock is generated internally by the IP and it is used for all transfers between the FPGA core fabric and I/O banks. The clock phase alignment circuitry ensures that this clock is kept in phase with the PHY clock for core-to-periphery and periphery-to-core transfers. |
PHY clock | This clock is used internally by the IP for PHY circuitry running at the same frequency as the core clock. |
VCO clock | This clock is generated internally by the PLL. It is used by both the input and output paths to generate PVT compensated delays in the interpolator. |
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 | |
Full | 100 | 333 | 100 | 266 | 100 | 233 |
Half | 100 | 667 | 100 | 533 | 100 | 466 |
Quarter | 100 | 1200 | 100 | 1067 | 100 | 933 |
Core Clock Rate | Speed Grade –5 (MHz) | Speed Grade –6 (MHz) | ||
---|---|---|---|---|
Min | Max | Min | Max | |
Full | 100 | 266 | 100 | 233 |
Half | 100 | 533 | 100 | 466 |
Quarter | 100 | 1067 | 100 | 933 |