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2.5.4.3 Priority of exceptions
While more than one exception can occur for a single instruction, only the exception with the highest priority is
reported. Table 2-38 lists the priorities.
Hereafter, handling exceptions by hardware is referred to as "process", and handling exception by software is
referred to as "service".
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Table 2-38. Exception Priority Order
High
Cold Reset
↑
Soft Reset
NMI
Address Error (instruction fetch)
TLB/XTLB Refill (instruction fetch)
TLB Invalid (instruction fetch)
Bus Error (instruction fetch)
System Call
Breakpoint
Coprocessor Unusable
Reserved Instruction
Trap
Integer Overflow
Address Error (data access)
TLB/XTLB Refill (data access)
TLB Invalid (data access)
TLB Modified (data write)
Watch
↓
Bus Error (data access)
Low
Interrupt (other than NMI)
Preliminary User's Manual S15543EJ1V0UM
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