Résumé
The increasing adoption of Multiprocessor System-on-Chip (MPSoC) architectures in space applications demands highly reliable interconnection solutions resilient to radiation-induced faults. This paper evaluates the reliability of the eXtensible Interconnect Network Architecture (XINA), a fault-tolerant Network-on-Chip (NoC) featuring a robust, AXI-compatible Network Interface (NI), specifically designed to maintain reliable communication under harsh environmental conditions. XINA incorporates Triple Modular Redundancy (TMR) and Hamming Error-Correcting Codes (ECC) to enhance the robustness of both NoC routers and NI components, while remaining fully compatible with standard AMBA AXI IP cores. Using a simulation-based fault injection methodology applied to a large-scale 100-core MPSoC implementation, we quantify the fault tolerance provided by both the NoC and its NI, and analyze their combined impact on performance, area, and power consumption. Four design variants combining different protection levels were evaluated. Results demonstrate the system sustained a peak global throughput of 2.12 Gbps in the unprotected baseline configuration, while the fully protected configuration reduced error occurrences at the cost of increased resource utilization and reduced operating frequency.