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ATSAM4S-XPLD
77
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
Lockup
The processor enters a lockup state if a hard fault occurs when executing the NMI or hard fault handlers. When the
processor is in lockup state, it does not execute any instructions. The processor remains in lockup state until either:
processor is in lockup state, it does not execute any instructions. The processor remains in lockup state until either:
It is reset
An NMI occurs
It is halted by a debugger.
Note:
If the lockup state occurs from the NMI handler, a subsequent NMI does not cause the processor to leave the
lockup state.
lockup state.
Memory
management fault
management fault
MMFSR
SCB_MMFAR
Bus fault
BFSR
SCB_BFAR
Usage fault
UFSR
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Table 12-12. Fault Status and Fault Address Registers (Continued)
Handler
Status Register
Name
Name
Address
Register Name
Register Name
Register Description