Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 4/01/2024
Public
Document Table of Contents

A.2.6.1.1. Direct Access Mode

In direct access mode, an access to the data target triggers a read or write command to the Flash memory. To use the direct access mode, enable the direct access controller with the enable direct access controller bit (endiracc) of the QSPI configuration register (cfg).

An external controller (for example, a processor) triggers the direct access controller with a read or write operation to the data target interface. The data target exposes a 1 MB window into the Flash device. You can remap this window to any 1 MB location within the Flash device.