Intel® Agilex™ Hard Processor System Technical Reference Manual

ID 683567
Date 2/14/2023
Public

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Document Table of Contents

B.1. Features of the Quad SPI Flash Controller

The quad SPI flash controller supports the following features:

  • SPIx1, SPIx2, or SPIx4 (quad SPI) serial NOR flash devices
  • Any device clock frequencies up to 108 MHz59
  • Direct access and indirect access modes
  • Single I/O, dual I/O, or quad I/O instructions
  • Up to four chip selects60
  • Configurable clock polarity and phase
  • Programmable write-protected regions
  • Programmable delays between transactions
  • Programmable device sizes
  • Read data capture tuning
  • Local buffering for indirect transfers
  • Support eXecute-In-Place (XIP) mode
59 Supported flash devices limit the speed.
60 When using multiple chip selects, the maximum device clock frequency is lower.