Datasheet

Section 5 Interrupt Controller
Rev. 4.00 Jun 06, 2006 page 125 of 1004
REJ09B0301-0400
Program execution state
Interrupt generated?
NMI?
Control level 1
interrupt?
IRQ0?
IRQ1?
IICI1?
IRQ0?
IRQ1?
IICI1?
I = 0?
Save PC and CCR
I ← 1
Read vector address
Branch to interrupt handling routine
Yes
No
Yes
Yes
Yes
No
No
Yes
No
Yes No
Yes
Yes
No
No
Yes
Yes
No
Hold pending
Figure 5.8 Flowchart of Procedure Up to Interrupt Acceptance in
Interrupt Control Mode 0