Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

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

5.4.6.3. DMA Operation

The SD host controller supports three DMA modes:

  • SDMA – Defined in SD Host Controller Standard Specification Version 1.00
  • ADMA2 – Defined in SD Host Controller Standard Specification Version 2.00
  • ADMA3 – Defined in SD Host Controller Standard Specification Version 4.20
Note:
  • The ADMA1, defined in SD Host Controller Standard Specification Version 2.00, became obsolete and it is not supported by the SD host controller.
  • This section only contains an overview of how the DMA modes operate. Refer to the SD Host Controller Standard Specification Version 4.20 for full details.