Figure 5.4 Process Up To Interrupt Acceptance When Ue = 1 - Hitachi H8/3062 Hardware Manual

IRQ
Yes

Figure 5.4 Process Up to Interrupt Acceptance when UE = 1

114
Program execution state
Yes
Priority level 1?
Yes
No
0
No
IRQ
1
Yes
TEI1
Yes
Interrupt requested?
Yes
NMI
No
No
IRQ
0
Yes
I = 0
Yes
Save PC and CCR
←
I 1
Read vector address
Branch to interrupt
service routine
No
Pending
No
No
IRQ
1
Yes
TEI1
Yes
No