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1. About the PHY Lite for Parallel Interfaces IP
2. PHY Lite for Parallel Interfaces Intel® FPGA IP for Agilex™ 5 E-Series Devices
3. PHY Lite for Parallel Interfaces Intel® FPGA IP for Agilex™ 7 M-Series Devices
4. PHY Lite for Parallel Interfaces Intel® FPGA IP for Agilex™ 7 F-Series and I-Series Devices
5. PHY Lite for Parallel Interfaces Intel® FPGA IP for Stratix® 10 Devices
6. PHY Lite for Parallel Interfaces Intel® FPGA IP for Arria® 10 and Cyclone® 10 GX Devices
7. PHY Lite for Parallel Interfaces Intel® FPGA IP User Guide Document Archives
8. Document Revision History for the PHY Lite for Parallel Interfaces Intel® FPGA IP User Guide
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
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
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3.2.2.2. Dynamic Reconfigurable Delays
Configurable Settings | Width | Description | Unit | Granularity |
---|---|---|---|---|
TxDqDelay | 11 | Output delay for data and strobe | 1/128 of VCO cycle | per pin |
RxDqsNDelayPi | 7 | Phase shift in negative edge of DQS | 1/128 of VCO cycle | per pin |
RxDqsPDelayPi | 7 | Phase shift in positive edge of DQS | 1/128 of VCO cycle | per pin |
RxRcvEnPiRank0 | 11 | RcvEn delay | 1/128 of VCO cycle | per nibble |
DqsSenseAmpDelay | 5 | DQS sense amplifier delay | PHY clock cycle | per nibble |
DqSenseAmpDuration | 4 | DQ sense amplifier duration | PHY clock cycle | per nibble |
DqSenseAmpDelay | 5 | DQ sense amplifier delay | PHY clock cycle | per nibble |
DqOdtDuration | 4 | DQ ODT duration | PHY clock cycle | per nibble |
DqOdtDelay | 5 | DQ ODT delay | PHY clock cycle | per nibble |
DqsOdtDuration | 4 | DQS ODT duration | PHY clock cycle | per nibble |
DqsOdtDelay | 5 | DQS ODT delay | PHY clock cycle | per nibble |
read_enable_offset | 4 | Delay before reading from the RX FIFO | PHY clock cycle | per lane |
RxDataVrefL | 9 | I/O reference voltage lower nibble | 1/512 of VCCN | per nibble |
RxDataVrefU | 9 | I/O reference voltage upper nibble | 1/512 of VCCN | per nibble |
TrainReset | 1 | Reset the training to clear non-permanent states - self clearing | — | per lane |
RLTrainingMode | 1 | Enables read leveling training mode | — | per lane |
DataTrainFeedback_N0 | 12 | Provides feedback for different training steps. In RL Training mode it is simply a counter. | — | per nibble |
For differential data, program the output delay settings for both pins in a differential pair, and the input settings only for the even pin.
Before adjusting any delays with dynamic reconfiguration, set the InternalClocksOn and reset the training. After calibration, set InternalClocksOn back to zero to save power. Follow these steps:
- Set InternalClocksOn = 1.
- Apply Train Reset by setting TrainReset from 0 to 1 and back to 0.
- Perform calibration.
- Set InternalClocksOn = 0.
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