Program execution status
No
Interrupt generated?
Yes
Yes
NMI
No
No
I = 0
Hold
pending
Yes
No
IRQ0
No
Yes
IRQ1
Yes
IICI1
Yes
Save PC and CCR
I ← 1
Read vector address
Branch to interrupt handling routine
Figure 5.3 Flowchart of Procedure Up to Interrupt Acceptance
in Interrupt Control Mode 0
Rev. 1.0, 09/01, page 96 of 904