Intel® Arria® 10 Hard Processor System Technical Reference Manual

ID 683711
Date 1/10/2023
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

19.4.2. Local Memory Buffer

The USB controller has three local SRAM memory buffers.
  • The write FIFO buffer is a 128 × 32-bit memory (512 total bytes)
  • The read FIFO buffer is a 32 × 32-bit memory (128 total bytes)
  • The ECC buffer is a 96 × 16-bit memory (1536 total bytes)

The SPRAM is a 8192 x 35-bit (32 data bits and 3 control bits) memory and includes support for ECC (Error Checking and Correction). The ECC block is integrated around a memory wrapper. It provides outputs to notify the system manager when single-bit correctable errors are detected (and corrected) and when double-bit uncorrectable errors are detected. The ECC logic also allows the injection of single- and double-bit errors for test purposes. The ECC feature is disabled by default. It must be initialized to enable the ECC function.