Intel® Stratix® 10 Hard Processor System Technical Reference Manual

ID 683222
Date 11/28/2022
Public

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Document Table of Contents

B.6.4.1.1. Micron Quad SPI Flash Devices with Support for Basic-XIP

To enter XIP mode in a Micron quad SPI flash device with support for Basic-XIP, perform the following steps:

  1. Save the values in the mode bits, if you intend to restore them upon exit.
  2. Disable the direct access controller and indirect access controller to ensure no new read or write accesses are sent to the flash device.
  3. Set the XIP mode bits in the modebit register to 0x80.
  4. Enable the quad SPI controller's XIP mode by setting the enterxipnextrd bit of the cfg register to 1.
  5. Re-enable the direct access controller and, if required, the indirect access controller.