Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 11/27/2024
Public
Document Table of Contents

A.2.3. HPS Use of SDM QSPI Controller Features

The QSPI Flash controller supports the following features:

  • SPIx1, SPIx2, or SPIx4 (QSPI) serial NOR flash devices
  • Supported clock frequencies up to 166 MHz74 75
  • Direct access and indirect access modes
  • Single I/O, dual I/O, or quad I/O instructions
  • Up to four chip selects76
  • 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
74 Supported flash devices limit the speed.
75 In the Quartus® Prime Pro Edition software GUI, select the configuration clock speed to match the capabilities of the QSPI Flash device that you selected.
76 When using multiple chip selects, the maximum device clock frequency is lower.