Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 7/19/2024
Public

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Document Table of Contents

5.1.6.2.9. Memory Cache Size Requirements

The DMA uses cache memory for the following purposes:
  • TX descriptor pre-fetch
  • RX Descriptor pre-fetch
  • TSO header data storage (separate memory as per the configuration)

Each TX/RX DMA channel can up to 16 descriptors respectively and each descriptor size is 16 bytes.

The memory cache is a single-port RAM whose width is same as the configured data width (128 bits).