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1. Agilex™ 5 Clocking and PLL Overview
2. Agilex™ 5 Clocking and PLL Architecture and Features
3. Agilex™ 5 Clocking and PLL Design Considerations
4. Clock Control Intel® FPGA IP Core
5. IOPLL Intel® FPGA IP Core
6. I/O PLL Reconfiguration
7. Document Revision History for the Clocking and PLL User Guide: Agilex™ 5 FPGAs and SoCs
2.2.1. PLL Features
2.2.2. PLL Usage
2.2.3. PLL Locations
2.2.4. PLL Architecture
2.2.5. PLL Control Signals
2.2.6. PLL Feedback Modes
2.2.7. Clock Multiplication and Division
2.2.8. Programmable Phase Shift
2.2.9. Programmable Duty Cycle
2.2.10. PLL Cascading
2.2.11. PLL Input Clock Switchover
2.2.12. PLL Reconfiguration and Dynamic Phase Shift
2.2.13. PLL Calibration
3.1. Guidelines: Clock Switchover
3.2. Guidelines: Timing Closure
3.3. Guidelines: Resetting the PLL
3.4. Guidelines: Configuration Constraints
3.5. Clocking Constraints
3.6. IP Core Constraints
3.7. Guideline: Achieving 5% Duty Cycle for fOUT_EXT ≥ 300 MHz Using tx_outclk Port from LVDS SERDES Intel® FPGA IP
6.1. Release Information for EMIF Calibration IP
6.2. Implementing HSIO I/O PLL Reconfiguration using EMIF Calibration IP
6.3. Implementing HVIO I/O PLL Reconfiguration
6.4. Reconfiguration Guideline for I/O PLLs
6.5. Axilite Interface Ports in the EMIF Calibration IP
6.6. Address Bus and Data Bus Settings
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6.4.3. Reconfiguring The I/O PLL
- Set the address bus value according to the table below:
Table 16. Reconfiguring The I/O PLL Address Bus Value for HSIO I/O PLL Reconfiguration Address Value for HVIO I/O PLL Reconfiguration Value s0_axi4lite_awaddr [7:0] core_avl_address [8:0]
Divide Settings Address s0_axi4lite_awaddr [20:13] – I/O PLL Base Address s0_axi4lite_awaddr [23:21] – 3’b101 - Set the address bus value for s0_axi4lite_awaddr [7:0]/core_avl_address [8:0] and the data bus value for [31:0] as the desired PLL setting. For more details about the Reconfiguration tables, refer to Address Bus and Data Bus Settings.
- Repeat the steps above to set the address bus and data bus value for the desired I/O PLL reconfiguration setting.
- Set address bus value of s0_axi4lite_awaddr [7:0]/core_avl_address [8:0] = 0x80 and assert data bus value for [2] for 10 ns to reset PLL.
- After the I/O PLL reconfiguration is complete, you must manually trigger the I/O PLL recalibration.
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