1. Agilex™ 3 Clocking and PLL Overview
2. Agilex™ 3 Clocking and PLL Architecture and Features
3. Agilex™ 3 Clocking and PLL Design Considerations
4. Clock Control Altera™ FPGA IP Core
5. IOPLL FPGA IP
6. I/O PLL Reconfiguration
7. Document Revision History for the Clocking and PLL User Guide: Agilex™ 3 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
6.1.1. Release Information for EMIF Calibration IP
6.1.2. Setting Up the IOPLL FPGA IP
6.1.3. Setting Up the EMIF Calibration IP
6.1.4. Connectivity Between IOPLL FPGA IP and EMIF Calibration IP
6.1.5. Axilite Interface Ports in the EMIF Calibration IP
6.1.6. Reconfiguration Guideline for HSIO I/O PLLs
6.1.7. Design Example for HSIO I/O PLL Reconfiguration
6.2.2.1. Read and Write Operations via Avalon® Memory-Mapped Interface
6.2.2.2. Enabling Reconfiguration for The Desired I/O PLL
6.2.2.3. Clearing off Calibration Statuses
6.2.2.4. Reconfiguring The I/O PLL
6.2.2.5. Enabling Recalibration for HVIO PLLs
6.2.2.6. Requesting Recalibration of I/O PLL
6.2.2.7. Clock Gating (Optional)
2.2.6.4. Normal Compensation Mode
An internal clock in normal compensation mode is phase-aligned to the input clock pin. The external clock output pin has a phase delay relative to the clock input pin if connected in this mode. The Quartus® Prime Timing Analyzer reports any phase difference between the two. In normal compensation mode, the delay introduced by the clock network is fully compensated. Only one output clock can be compensated in normal compensation mode. The fabric-feeding PLL located within HVIO bank 6E, 6F/6G, and 6H does not support the compensation mode.
Figure 15. Example of Phase Relationship Between the PLL Clocks in Normal Compensation Mode