Cyclone® V Hard Processor System Technical Reference Manual

ID 683126
Date 8/28/2023
Public
Document Table of Contents

5.3.4. Error Message Extraction

Cyclic redundancy check (CRC) errors from the FPGA fabric are monitored by the FPGA Manager. Upon assertion of a CRC error signal from the FPGA, the FPGA Manager extracts information about the error including:

  • Error syndrome
  • Error location
  • Error type

A CRC error interrupt from the FPGA manager can be enabled through software. Software can then extract the CRC error information from the error message register (EMR) data interface. The number of valid error information bits in the EMR data registers depends on the specific FPGA device.