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| HD64F3039F18 Datasheet, PDF (128/710 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family / H8/300H Series | |||
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Section 5 Interrupt Controller
Program execution state
No
Interrupt requested?
Yes
Yes
NMI?
No
No
Priority level 1?
Yes
IRQ0?
Yes
No
IRQ1?
Yes
No
ADI?
Yes
Pending
IRQ0?
Yes
No
IRQ1?
Yes
No
ADI?
Yes
I = 0?
Yes
Yes
No
UI = 0?
No
I = 0?
Yes
No
Save PC and CCR
I â 1, UI â 1
Read vector address
Branch to interrupt
service routine
Figure 5.6 Process Up to Interrupt Acceptance when UE = 0
Rev.3.00 Mar. 26, 2007 Page 104 of 682
REJ09B0353-0300
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