H8S2602 Datasheet, PDF (108/492 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 5 Interrupt Controller
Program execution status
Interrupt generated? ^No
Yes
Yes
NMI
No
No
Level 7 interrupt?
Yes
Mask level 6
No
or below?
Yes
No
Level 6 interrupt?
Yes
Mask level 5
No
or below?
Yes
Level 1 interrupt? ^No
Yes
Mask level 0?
No
Yes
Save PC, CCR, and EXR
Clear T bit to 0
Update mask level
Read vector address
Branch to interrupt handling routine
Hold
pending
Figure 5.4 Flowchart of Procedure Up to Interrupt Acceptance in Control Mode 2
Rev. 1.00 Jan. 21, 2008 Page 76 of 456
REJ09B0425-0100