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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
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5.2.3. Output Path
The output path consists of a FIFO and an interpolator.
Block | Description |
---|---|
Write FIFO | Serializes the output data from the core with a serialization factor of up to 8 (in DDR quarter-rate). |
Interpolator | Works with the FIFO block to generate the desired output delay. You can dynamically configure the delay through the Avalon® memory-mapped interface. For more information, refer to Dynamic Reconfiguration section. |
Figure 86. Output PathThis figure shows the output path for the PHY Lite for Parallel Interfaces Intel® FPGA IP.
The following figures show the waveform diagrams for the output path. The delays shown in the waveforms are just estimation based on simulations and these values are different with different core clock rate and VCO multiplier.
Figure 87. Output Path ─ Write Latency 0This simulation is based on the following PHY Lite for Parallel Interfaces Intel® FPGA IP configurations:
- Interface Frequency: 1000 MHz
- VCO Multiplier Factor: 1
- User logic clock rate: Quarter rate
Figure 88. Output Path ─ Write Latency 2This simulation is based on the following PHY Lite for Parallel Interfaces Intel® FPGA IP configurations:
- Interface Frequency: 1000 MHz
- VCO Multiplier Factor: 1
- User logic clock rate: Quarter rate