D12320VF25IV Datasheet, PDF (165/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 5 Interrupt Controller
Program execution state
Interrupt generated? ^No
Yes
Yes
NMI?
No
No
Level 7 interrupt?
Yes
Mask level 6
or below?
Yes
Level 6 interrupt? ^No
No
Yes
Level 1 interrupt? ^No
Mask level 5
No
or below?
Yes
Yes
No
Mask level 0?
Yes
Save PC, CCR, and EXR
Clear T bit to 0
Hold pending
Update mask level
Read vector address
Branch to interrupt handling routine
Figure 5.6 Flowchart of Procedure Up to Interrupt Acceptance in
Interrupt Control Mode 2
Rev.6.00 Sep. 27, 2007 Page 133 of 1268
REJ09B0220-0600