Agilex™ 7 Configuration User Guide

ID 683673
Date 4/07/2025
Public
Document Table of Contents

4. Including the Reset Release IP in Your Design

Altera requires that you either use the Reset Release IP to hold your design in reset until configuration is complete.

The Reset Release IP is available in the Quartus® Prime software. This IP consists of a single output signal, nINIT_DONE. The nINIT_DONE signal is the core version of the INIT_DONE pin and has the same function in both FPGA First and HPS First configuration modes. Altera recommends that you hold your design in reset while the nINIT_DONE signal is high or while the INIT_DONE pin is low. When you instantiate the Reset Release IP in your design, the SDM drives the nINIT_DONE signal. Consequently, the IP does not consume any FPGA fabric resources, but does require routing resources.

Figure 63.  Reset Release IP nINIT_DONE Internal Connection

View the video guide below for a quick walk-through to understand the importance of using Reset Release IP and how to include it in your design.