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1.1. Fractional PLL Reconfiguration in 28-nm Devices
1.2. Fractional PLL Dynamic Phase Shifting in the Intel® Quartus® Prime Software
1.3. Design Considerations
1.4. Using the Design Examples
1.5. Tutorial Walkthrough
1.6. Document Revision History for AN 661: Implementing Fractional PLL Reconfiguration with Altera PLL and Altera PLL Reconfig IP Cores
1.1.1.1. Connectivity between Altera PLL and Altera PLL Reconfig IP Cores
1.1.1.2. Connecting Altera PLL and Altera PLL Reconfig IP Cores
1.1.1.3. Avalon-MM Signals in Altera PLL Reconfig IP Core
1.1.1.4. Registers and Counters Settings
1.1.1.5. Reconfiguring Fractional PLL Settings with Avalon-MM Interface
1.1.1.6. .mif Streaming Reconfiguration
1.4.1. Software Requirement
1.4.2. Design Example 1: PLL Reconfiguration with Altera PLL Reconfig IP Core to Reconfigure M, N, and C Counters
1.4.3. Design Example 2: PLL Reconfiguration with Altera PLL Reconfig IP Core to Perform Dynamic Phase Shift
1.4.4. Design Example 3: PLL Reconfiguration with Altera PLL Reconfig IP Core using Qsys Design Flow
1.4.5. Design Example 4: Dynamic Phase Shift with Altera PLL IP Core
1.4.6. Design Example 5: .mif Streaming Reconfiguration
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1.4.4.1. Qsys System and Components
Figure 7. Qsys System and Components for Design Example 3The C code program in the Nios® II processor controls the fPLL reconfiguration IP core. This program consists of a simple loop that receives and executes command from the JTAG UART.