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1. Agilex™ 5 LVDS SERDES Overview
2. Agilex™ 5 LVDS SERDES Architecture
3. Agilex™ 5 LVDS SERDES Transmitter
4. Agilex™ 5 LVDS SERDES Receiver
5. Agilex™ 5 High-Speed LVDS I/O Implementation Guide
6. Agilex™ 5 LVDS SERDES Timing
7. LVDS SERDES Intel® FPGA IP Design Examples
8. Agilex™ 5 LVDS SERDES Design Guidelines
9. Agilex™ 5 LVDS SERDES Troubleshooting Guidelines
10. LVDS SERDES User Guide: Agilex™ 5 FPGAs and SoCs Archives
11. Document Revision History for the LVDS SERDES User Guide: Agilex™ 5 FPGAs and SoCs
8.1. Use PLLs in Integer PLL Mode for LVDS SERDES
8.2. Use High-Speed Clock from PLL to Clock SERDES Only
8.3. Pin Placement for Differential Channels
8.4. SERDES Pin Pairs for Soft-CDR Mode
8.5. Placing LVDS SERDES Transmitters and Receivers with External PLL
8.6. Sharing LVDS SERDES I/O Lane with Other Intel® FPGA IPs
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4.1.2. Synchronizer (DPA FIFO)
The synchronizer is a 1-bit wide and 6-bit deep FIFO buffer that compensates for the phase difference between dpa_fast_clock from the DPA block and the fast_clock that the I/O PLLs produce.
The synchronizer can compensate only for phase differences, not frequency differences, between the data and the input reference clock of the receiver.
The optional rx_fifo_reset signal resets the synchronizer. The synchronizer resets automatically when the DPA block first locks to the incoming data. If your data checker indicates corrupt received data, use rx_fifo_reset to reset the synchronizer.
Note: The receiver bypasses the synchronizer circuit in non-DPA and soft-CDR modes.