On a Data Abort, the MMU places an encoded 4-bit value, FS[3:0], along with the 4-bit encoded domain number, in the data FSR. Similarly, on a Prefetch Abort, in the prefetch FSR, intended for debug purposes only. In addition, the MVA associated with the Data Abort is latched into the FAR. If an access violation simultaneously generates more than one source of abort, they are encoded in the priority given in Table 3.9. The FAR is not updated by faults caused by instruction prefetches.