h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 124

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 5 Interrupt Controller
Rev. 2.00 Dec. 05, 2005 Page 86 of 724
REJ09B0200-0200
Figure 5.4 Flowchart of Procedure Up to Interrupt Acceptance in Control Mode 2
Level 7 interrupt?
Mask level 6
or below?
Yes
Yes
No
No
Yes
Branch to interrupt handling routine
Program execution status
Save PC, CCR, and EXR
Read vector address
Interrupt generated?
Update mask level
Level 6 interrupt?
Clear T bit to 0
Mask level 5
or below?
NMI
Yes
Yes
Yes
No
No
No
No
Level 1 interrupt?
Mask level 0?
pending
Hold
Yes
Yes
No
No