Intel Agilex® 7 Configuration User Guide

ID 683673
Date 2/05/2024
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3.2.7.1. Understanding Quad SPI Flash Byte-Addressing

At power-on, the SDM operates from boot ROM. The SDM loads configuration firmware from Quad SPI flash using 3-byte addressing. Once loaded, if the flash size is 256 Mb or larger, the SDM configures the Quad SPI flash to operate in 4-byte addressing mode and continues to load the rest of the bitstream until configuration completes.

Intel Agilex® 7 devices support various third-party flash devices operating at 1.8 V. For more details, refer to Intel Supported Third Party Configuration Devices.