FS[3:0], [3:0]
Fault Status bits. This field indicates the type of exception generated. Any encoding not listed is
reserved:
0b00001 Alignment fault.
0b00010 Debug event.
0b00011 Access flag fault, section.
0b00100 Instruction cache maintenance fault.
0b00101 Translation fault, section.
0b00110 Access flag fault, page.
0b00111 Translation fault, page.
0b01000 Synchronous external abort, non-translation.
0b01001 Domain fault, section.
0b01011 Domain fault, page.
0b01100 Synchronous external abort on translation table walk, first level.
0b01101 Permission fault, section.
0b01110 Synchronous external abort on translation table walk, second level.
0b01111 Permission fault, second level.
0b10000 TLB conflict abort.
0b10101 LDREX or STREX abort.
0b10110 Asynchronous external abort.
0b11000 Asynchronous parity error on memory access.
0b11001 Synchronous parity error on memory access.
0b11100 Synchronous parity error on translation table walk, first level.
0b11110 Synchronous parity error on translation table walk, second level.
B1 AArch32 system registers
B1.50 DFSR with Short-descriptor translation table format
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B1-225
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