External Memory Interfaces Agilex™ 7 F-Series and I-Series FPGA IP User Guide

ID 683216
Date 3/29/2024
Document Table of Contents Data Buffer Controller

The data buffer controller performs the following operations:
  • Manages the read and write access to the data buffers:
    • Provides the data storing pointers to the buffers when the write data is accepted or the read return data arrives.
    • Provides the draining pointer when the write data is dispatched to memory or the read data is read out of the buffer and sent back to users.
  • Satisfies the required write latency.
  • If ECC support is enabled, assists the main control path to perform read-modify-write.

Data reordering is performed with the data buffer controller and the data buffers.