SEU Mitigation User Guide: Agilex™ 5 FPGAs and SoCs

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ID 813649
Date 4/07/2025
Public
Document Table of Contents
Document Table of Contents x
1. Agilex™ 5 SEU Mitigation Overview 2. Agilex™ 5 CRAM Error Mitigation 3. Secure Device Manager ECC Error and SmartVID Errors Detection 4. Agilex™ 5 SEU Mitigation Implementation Guides 5. IP and Software References 6. Document Revision History for the SEU Mitigation User Guide: Agilex™ 5 FPGAs and SoCs
1. Agilex™ 5 SEU Mitigation Overview x
1.1. SEU Mitigation Techniques 1.2. Configuration RAM 1.3. Memory Blocks 1.4. Secure Device Manager ECC and SmartVID 1.5. Triple Modular Redundancy 1.6. Failure Rates
2. Agilex™ 5 CRAM Error Mitigation x
2.1. CRAM Error Detection and Correction 2.2. Error Message Queue 2.3. Scrubbing 2.4. SEU Sensitivity Processing 2.5. Design Hierarchy Sensitivity Classification 2.6. Evaluation of System Response to Upsets 2.7. Retrieving SEU Statistics using Mailbox Command
2.2. Error Message Queue x
2.2.1. SEU_ERROR Pin Behavior 2.2.2. Retrieving the Error Message Queue Contents Through Mailbox Command 2.2.3. Retrieving the Error Message Queue Content Using the HPS SDM Mailbox 2.2.4. Error Message Queue Bit Description
2.3. Scrubbing x
2.3.1. Internal Scrubbing 2.3.2. External Scrubbing
2.4. SEU Sensitivity Processing x
2.4.1. Advanced SEU Detection IP
2.4.1. Advanced SEU Detection IP x
2.4.1.1. Release Information for Advanced SEU Detection IP 2.4.1.2. On-Chip Lookup Sensitivity Processing 2.4.1.3. Off-Chip Lookup Sensitivity Processing 2.4.1.4. Sensitivity Map Header Lookup
2.5. Design Hierarchy Sensitivity Classification x
2.5.1. Hierarchy Tagging
2.6. Evaluation of System Response to Upsets x
2.6.1. Fault Injection Debugger
3. Secure Device Manager ECC Error and SmartVID Errors Detection x
3.1. SDM ECC Error Message Bits 3.2. SmartVID Error Message Bits 3.3. SDM ECC and SmartVID Error Signals Behavior
4. Agilex™ 5 SEU Mitigation Implementation Guides x
4.1. Setting the SEU_ERROR Pin 4.2. Setting Up the SEU Mitigation Features 4.3. Performing External Scrubbing 4.4. Assigning Regions for Hierarchy Tagging 4.5. Sensitivity Map Header 4.6. Using the Fault Injection Debugger
4.5. Sensitivity Map Header x
4.5.1. Programming the .smh File into Memory 4.5.2. Looking up the Sensitivity Map Header
4.5.2. Looking up the Sensitivity Map Header x
4.5.2.1. Sensitivity Map Header Revision 4 File Format Reference
4.6. Using the Fault Injection Debugger x
4.6.1. Launching and Setting Up the Fault Injection Debugger 4.6.2. Configuring Your Device using a Software Object File (.sof) 4.6.3. Constraining Regions for Fault Injection 4.6.4. Injecting Errors to Predefined Safe Locations 4.6.5. Blowing Fuse Bit to Enable Injecting All Error Types 4.6.6. Injecting Errors to Random Locations 4.6.7. Injecting Errors to Specific Locations 4.6.8. Injecting Double Adjacent Errors 4.6.9. Injecting SDM ECC Errors 4.6.10. Analyzing SEU or SDM ECC Errors Using Signal Tap
4.6.4. Injecting Errors to Predefined Safe Locations x
4.6.4.1. Listing the Predefined Safe Locations: Command-Line Interface 4.6.4.2. Injecting Errors to Predefined Safe Locations: Command-Line Interface 4.6.4.3. Injecting Errors to Predefined Safe Locations: GUI with Tcl Console 4.6.4.4. Injecting Error to Predefined Safe Locations: Mailbox Command
4.6.8. Injecting Double Adjacent Errors x
4.6.8.1. Injecting Double Adjacent Errors: Command-Line Interface 4.6.8.2. Injecting Double Adjacent Errors: GUI with Tcl Console
4.6.9. Injecting SDM ECC Errors x
4.6.9.1. Injecting SDM ECC Errors: Command-Line Interface 4.6.9.2. Injecting SDM ECC Errors: GUI with Tcl Console 4.6.9.3. Injecting SDM ECC Errors: Fault Injection Debugger 4.6.9.4. Injecting SDM ECC Errors: Mailbox Command
5. IP and Software References x
5.1. Advanced SEU Detection IP References 5.2. Fault Injection Debugger Software References
5.1. Advanced SEU Detection IP References x
5.1.1. Advanced SEU Detection IP Parameter Settings 5.1.2. Advanced SEU Detection IP Ports
5.2. Fault Injection Debugger Software References x
5.2.1. Fault Injection Debugger GUI Tool 5.2.2. Fault Injection Debugger Command-Line Interface
1. Agilex™ 5 SEU Mitigation Overview
2. Agilex™ 5 CRAM Error Mitigation
3. Secure Device Manager ECC Error and SmartVID Errors Detection
4. Agilex™ 5 SEU Mitigation Implementation Guides
5. IP and Software References
6. Document Revision History for the SEU Mitigation User Guide: Agilex™ 5 FPGAs and SoCs

2.4. SEU Sensitivity Processing

Reconfiguring a running FPGA has a significant impact on the system. Using SEU sensitivity processing, you can identify if the SEU on a CRAM bit is critical to the function of your FPGA design. You can perform SEU sensitivity processing using the Advanced SEU Detection IP core.

In many instances, an SEU impacts CRAM bits that are not critical to the function of the design. For example:

  • Configuration bits that are not used because they control unused logic and routing wires
  • Portions such as test circuitry that are not utilized in the functional operations of the FPGA
  • Non-critical functions that may be logged but do not need to be reprogrammed or reset

When planning recovery from an SEU, you must account for the time required to bring the FPGA to a state consistent with the current state of the system. For example, if an internal state machine is in an illegal state, it may require reset. In addition, the surrounding logic may need to account for this unexpected operation.

Typically, only 40% of all CRAM bits can be used even in the most heavily utilized device. This means that only 40% of SEUs require intervention and you can ignore the rest.


Section Content
Advanced SEU Detection IP

Level Two Title