Hitachi H8/3032 Series Hardware Manual page 108

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Program execution state
Interrupt requested?
Yes
Priority level 1?
Yes
No
IRQ
0
Yes
No
IRQ
1
Yes
ADI
Yes
Save PC and CCR
Read vector address
Branch to interrupt
service routine
Figure 5-4 Process Up to Interrupt Acceptance when UE = 1
No
Yes
NMI
No
No
No
IRQ
0
Yes
IRQ
1
Yes
No
I = 0
Yes
←
I 1
93
Pending
No
ADI
Yes