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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
5.1.6.1. LVDS SERDES Intel® FPGA IP General Settings
5.1.6.2. LVDS SERDES Intel® FPGA IP Pin Settings
5.1.6.3. LVDS SERDES Intel® FPGA IP PLL Settings
5.1.6.4. LVDS SERDES Intel® FPGA IP Receiver Settings
5.1.6.5. LVDS SERDES Intel® FPGA IP Transmitter Settings
5.1.6.6. LVDS SERDES Intel® FPGA IP Clock Resource Summary
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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8.5. Placing LVDS SERDES Transmitters and Receivers with External PLL
Follow these guidelines if you want to use an external PLL for LVDS SERDES transmitter and receiver interfaces.
- To use an external PLL, in the LVDS SERDES IP parameter editor, turn on the Use external PLL option.
- You can generate two instances of the LVDS SERDES IP—a receiver and a transmitter.
- In each instance, you can use up to the following number of channels:
- 23 transmitters, with one inclock for the I/O PLL
- 23 DPA or non-DPA receivers, with one inclock for the I/O PLL
- 8 soft-CDR receivers
- Generate the IOPLL Intel® FPGA IP and ensure that the .qsf file lists the IOPLL IP before the LVDS SERDES IP. This order is required for your design to compile with the proper clock constraints.
- Connect the same PLL to both the transmitter and receiver instances. You can either use the coreclock from the LVDS SERDES transmitter instance or the coreclock from the LVDS SERDES receiver instance to clock your core logic. For the RX Soft-CDR mode, connect the coreclock of the LVDS SERDES transmitter instance to the ext_pll_1_outclock2 port of the LVDS SERDES receiver instance.
- Set the I/O standard for the refclk port of the IOPLL IP to be compatible with the I/O standard used by the LVDS SERDES IP.
- If you are using an external PLL, ensure that the PLL outclock frequency is the same as the LVDS SERDES data rate.
- For DPA LVDS SERDES receiver interface that uses more than 4 bytes, use two external PLLs.
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