Intel® MAX® 10 Clocking and PLL User Guide

ID 683047
Date 12/26/2023
Public
Document Table of Contents

2.3.7. Clock Feedback Modes

The Intel® MAX® 10 PLLs support up to four different clock feedback modes. Each mode allows clock multiplication and division, phase shifting, and programmable duty cycle.

The PLL fully compensates input and output delays only when you use the dedicated clock input pins associated with a given PLL as the clock sources.

For example, when using PLL1 in normal mode, the clock delays from one of the following clock input pins to the PLL and the PLL clock output-to-destination register are fully compensated:

  • CLK0
  • CLK1
  • CLK6
  • CLK7

When driving the PLL using the GCLK network, the input and output delays might not be fully compensated in the Intel® Quartus® Prime software.