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AT91RM9200-CJ-002 Datasheet(PDF) 51 Page - ATMEL Corporation |
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AT91RM9200-CJ-002 Datasheet(HTML) 51 Page - ATMEL Corporation |
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51 / 701 page  51 1768I–ATARM–09-Jul-09 AT91RM9200 11.7.6 CP15 Register 5, Fault Status Register Access: Read/Write Reading the CP 15 Register 5, or Fault Status Register (FSR), returns the source of the last data fault, indicating the domain and type of access being attempted when the data abort occurred. In addition, the virtual address which caused the data abort is written into the Fault Address Register (CP15 Register 6). Writing the CP 15 Register 5, or Fault Status Register (FSR), sets the FSR to the value of the data written. This is useful for a debugger to restore the value of the FSR. • Status[3:0]: Fault Type Indicates the fault type. The status field is encoded by the MMU when a data abort occurs. The interpretation of the Status field is dependant on the domain field and the MVA associated with the data abort (stored in the FAR). • Domain[7:4]: Domain Indicates the domain (D15 - D0) being accessed when the fault occurred. The non-defined bits should be zero when written and are unpredictable when read. 31 30 29 28 27 26 25 24 -------- 23 22 21 20 19 18 17 16 -------- D 15 14 13 12 11 10 9 8 -------- 76 543210 Domain Status |
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