Intel® Stratix® 10 Hard Processor System Technical Reference Manual

ID 683222
Date 1/25/2024
Public
Document Table of Contents

C.1.2. HPS Events

If any type of HPS reset event occurs, for example, watchdog, cold, or warm reset events, the h2f_gp_out[31:0] signals are driven with the reset value of the h2f_gp_out[31:0] register, which is low, until it is changed by software to a specified value during HPS boot up.

This software assertion high and hardware clearing low provides a practical mechanism for FPGA logic to understand the state of the HPS signals that enter the FPGA.