scope:

Abstract:

A few months into its mission, MRO began experiencing unexpected side swaps to the redundant flight computer that placed the spacecraft into safe mode. The problem was traced to subtle inconsistencies between the MRO design implementation of an ASIC device and a known limitation of that device. Users of the RAD750 spaceflight computer should assure that the "PPCI Erratum 24" ASIC defect cannot cause excessive accumulation of uncorrectable SDRAM memory errors, and that the system architecture has robust error recovery capabilities.