Hitachi H8/3637 Hardware Manual page 82

H8/3637 series
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Program execution state
IRRI0 = 1
IEN0 = 1
I = 0
PC contents saved
CCR contents saved
I ← 1
Branch to interrupt
handling routine
Legend:
PC:
Program counter
CCR:
Condition code register
I:
I bit of CCR
72
No
Yes
No
Yes
IRRI1 = 1
Yes
IEN1 = 1
Yes
No
Yes
Figure 3.3 Flow up to Interrupt Acceptance
No
No
No
IRRI2 = 1
Yes
No
IEN2 = 1
Yes
No
IRRDT = 1
Yes
No
IENDT = 1
Yes

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