HD64F3642AHV Datasheet, PDF (96/551 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 3 Exception Handling
Program execution state
No
IRRI0 = 1
Yes
No
IEN0 = 1
Yes
No
IRRI1 = 1
Yes
No
IEN1 = 1
Yes
No
IRRI2 = 1
Yes
No
IEN2 = 1
Yes
No
IRRDT = 1
Yes
No
IENDT = 1
Yes
No
I=0
Yes
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
Figure 3.3 Flow up to Interrupt Acceptance
Rev. 6.00 Sep 12, 2006 page 74 of 526
REJ09B0326-0600