| 摘要 |
A redundancy scrubber. The novel scrubber includes fault detection logic for detecting if a circuit has been upset and a mechanism for automatically rewriting data to the circuit when an upset is detected. In an illustrative embodiment, the scrubber corrects for upsets in a circuit comprised of a plurality of redundant circuits, each redundant circuit including a data port for receiving data and a load enable port for controlling when the redundant circuit should load new data. The fault detection logic processes the outputs from each of the redundant circuits and outputs a fault detect signal indicating whether an upset has been detected in one or more of the redundant circuits. The fault detect signal is coupled to the load enable ports, forcing the redundant circuits to immediately reload with corrected data from a voter or with new incoming data when an upset is detected.
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