Intel Agilex Series

Unrecoverable Configuration Error
Figure 6. Unrecoverable Error during Reconfiguration Timing Diagram
nCONFIG
nSTATUS
CONF_DONE
INIT_DONE
Configuration_State
Configuration Error
Configuration
Unrecoverable Error
User Mode Idle
Device Clean
Reconfiguration Triggered
Reconfiguration
In rare instances, a configuration error or a security event may be unrecoverable. In these cases, the SDM drives nSTATUS
low and it stays low. You must perform a power cycle to restart the reconfiguration process. To ensure error recovery under all
reconfiguration circumstances, Intel recommends that you design your system to continuously monitor nSTATUS and enable
device power cycling if needed.
Note that in the case of a double bit ECC error in the SDM RAM, nSTATUS is also asserted low and stays low.
Related Information
• Standard (non-RSU) Image Layout in Flash on page 168
• RSU Image Layout in Flash – SDM Perspective on page 169
• Quad SPI Flash Layout on page 168
For information about storing firmware, configuration, and application data in flash devices.
• Intel Agilex Device Datasheet
For the following timing diagrams that define set-up, hold, and propagation delay timing parameters: AS Configuration
Serial Output Timing Diagram, AS Configuration Serial Input Timing Diagram, and Avalon ST Configuration Timing
Diagram.
• Intel Agilex Power Management User Guide
2. Intel Agilex Configuration Details
683673 | 2021.10.29
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Configuration User Guide
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