Abstract
AbstractThe On-Board Computer on any satellite can malfunction due to the usage of the latest high-density memory components which are likely to get multiple bit errors when exposed to increased cosmic radiation in space. Hence, a suitable multibit Error Detection and Correction (EDAC) unit is required. In this paper, such an EDAC unit is adapted after an extensive literature survey. The proposed multibit EDAC is verified in two different steps. First, the encoder and decoder units are verified using Universal Verification Methodology (UVM). It is noted that all burst errors up to 4 bits are detected and corrected with 100% accuracy. The code coverage is measured up to 95% minimum. Following that, the same EDAC unit is verified by incorporating it into advanced microcontroller bus architecture. The results show that the EDAC unit has passed all memory testing successfully. The proposed EDAC may be used for nano-satellite space applications.KeywordsError detection and correction unitUniversal verification methodologyAdvanced microcontroller bus architectureNano-satellites
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