NEC V850ES/KE1+ User Manual page 546

CHAPTER 17 INTERRUPT/EXCEPTION PROCESSING FUNCTION
Figure 17-7. Example of Servicing Simultaneously Generated Interrupt Request Signals
Interrupt request a (level 2)
Interrupt request b (level 1)
Interrupt request c (level 1)
Notes 1. Higher default priority
2. Lower default priority
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Main routine
EI
Note 1
Servicing of interrupt
Note 2
request b
Servicing of interrupt
request c
Servicing of interrupt
request a
User's Manual U16896EJ2V0UD
·Interrupt requests b and c are
acknowledged first according to their
priorities.
·Because the priorities of b and c are the
same, b is acknowledged first because it
has the higher default priority.