Figure 5.4 Flowchart Of Procedure Up To Interrupt Acceptance In Control Mode 2 - Renesas H8S Series Hardware Manual

Section 5 Interrupt Controller
Level 7 interrupt?
Mask level 6
or below?

Figure 5.4 Flowchart of Procedure Up to Interrupt Acceptance in Control Mode 2

Rev. 6.00 Mar 15, 2006 page 82 of 570
REJ09B0211-0600
Program execution status
Interrupt generated?
Yes
NMI
No
Yes
Level 6 interrupt?
No
Yes
Mask level 5
or below?
Save PC, CCR, and EXR
Clear T bit to 0
Update mask level
Read vector address
Branch to interrupt handling routine
No
Yes
No
No
Yes
Level 1 interrupt?
No
Yes
Mask level 0?
Hold
pending
No
Yes
No
Yes