IOPLL Intel® FPGA IP Core User Guide

ID 683285
Date 2/06/2023
Public

Output Clocks

The IOPLL IP core can generate up to nine clock output signals. The generated clock output signals clock the core or the external blocks outside the core.

You can use the reset signal to reset the output clock value to 0 and disable the PLL output clocks.

Each output clock has a set of requested settings where you can specify the desired values for output frequency, phase shift, and duty cycle. The desired settings are the settings that you want to implement in your design.

The actual values for the frequency, phase shift, and duty cycle are the closest settings (best approximate of the desired settings) that can be implemented in the PLL circuit.