EP2AGZ225HF40I3N Datasheet, PDF (368/382 Pages) Altera Corporation – Volume 1: Device Interfaces and Integration

10–10
Chapter 10: SEU Mitigation in Arria II Devices
Recovering From CRC Errors
Recovering From CRC Errors
The system that the Arria II device resides in must control device reconfiguration.
After detecting an error on the CRC_ERROR pin, strobing the nCONFIG signal low directs
the system to perform the reconfiguration at a time when it is safe for the system to
reconfigure the device.
When the data bit is rewritten with the correct value by reconfiguring the device, the
device functions correctly.
While soft errors are uncommon in Altera^® devices, certain high-reliability
applications require a design to account for these errors.
Document Revision History
Table 10–9 lists the revision history for this chapter.
Table 10–9. Document Revision History
Date
July 2012
Version
4.2
June 2011
4.1
December 2010
4.0
July 2010
3.0
November 2009
2.0
February 2009
1.0
Changes
Removed repeated paragraph in the “User Mode Error Detection” section.
■ Updated “User Mode Error Detection” section.
■ Minor text edits.
■ Updated for the Quartus II software version 10.1 release.
■ Added Arria II GZ devices information.
■ Minor text edits.
Updated for Arria II GX v10.0 release:
■ Updated Table 10–3, Table 10–6, Table 10–7, and Table 10–8.
Updated for Arria II GX v9.1 release:
■ Updated Table 10–7 and Table 10–8.
■ Minor text edits.
Initial release.
Arria II Device Handbook Volume 1: Device Interfaces and Integration
July 2012 Altera Corporation