A fault recovery system includes various fault management circuits that form a hierarchical structure. One fault management circuit detects a fault in a functional circuit and executes a recovery operation to recover the functional circuit from the fault. When the fault management circuit fails to recover the functional circuit from the fault within a predetermined time duration, a fault management circuit that is in a higher hierarchical level executes another recovery operation to recover the functional circuit from the fault. Such a fault management circuit is required to execute the corresponding recovery operation within another predetermined time duration to successfully recover the functional circuit from the fault. The fault recovery system thus implements the hierarchical structure of fault management circuits to recover the functional circuit from the fault.