Figure 2.8-2 Example Of Multiple Eit Processing; Table 2.8-5 Eit Handler Execution Order - Fujitsu MB91F109 FR30 Hardware Manual

Table 2.8-5 EIT Handler Execution Order

Handler execution order
1
2
3
4
5
6
7
8
*1: The other EIT events are discarded.
*2: The INTE instruction cannot be used in an environment where a step-trace-trap
EIT event occurs.
Figure 2.8.2 shows an example of multiple EIT processing.

Figure 2.8-2 Example of Multiple EIT Processing

Priority
(High) NMI occurrence
(Low) INT instruction
execution
Reset (*1)
Undefined-instruction exception
2
Step-trace-trap *
2
INTE instruction *
NMI (for user)
INT instruction
User interrupt
Coprocessor nonexistent trap
Coprocessor error trap
Main routine
NMI handler
INT instruction
handler
Executed next
2.8 EIT (Exception, Interrupt, and Trap)
Event
Executed first
63