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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
Visible to Intel only — GUID: mcn1424934180828
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1.1.1.2. Connecting Altera PLL and Altera PLL Reconfig IP Cores
To connect the Altera PLL and Altera PLL Reconfig instances in your design, follow these steps:
- Connect the reconfig_to_pll[63:0] bus on the Altera PLL Reconfig instance to the reconfig_to_pll[63:0] bus on the Altera PLL instance.
- Connect the reconfig_from_pll[63:0] bus on the Altera PLL instance to the reconfig_from_pll[63:0] bus on the Altera PLL Reconfig instance.
- Connect the mgmt_clk signal to a clock source. The mgmt_clk signal can be a free running clock, eliminating the need to control the start and stop of the mgmt_clk signal.
- To perform Avalon read or write operations, connect the mgmt_reset, mgmt_read_data[31:0], mgmt_write, mgmt_address[5:0], mgmt_write_data[31:0] buses, and the mgmt_wait_request and mgmt_read signals to user control logic.