Renesas H8S Series Hardware Manual page 124

Figure 5-6 Flowchart of Procedure Up to Interrupt Acceptance in Interrupt Control Mode 2
Rev.6.00 Oct.28.2004 page 96 of 1016
REJ09B0138-0600H
Program execution status
Yes
No
Level 7 interrupt?
Yes
No
Mask level 6
or below?
Yes
Save PC, CCR, and EXR
Branch to interrupt handling routine
No
Interrupt generated?
Yes
NMI
No
No
Level 6 interrupt?
Yes
No
Mask level 5
or below?
Yes
Clear T bit to 0
Update mask level
Read vector address
No
Level 1 interrupt?
Yes
No
Mask level 0
Yes
Hold pending