Datasheet

Section 5 Interrupt Controller
Rev. 3.00 Sep. 28, 2009 Page 81 of 710
REJ09B0384-0300
Program execution state
Interrupt generated?
NMI
An interrupt with interrupt
control level 1?
IRQ0
IRQ1
IBFI3
IRQ0
IRQ1
IBFI3
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 5.4 Flowchart of Procedure up to Interrupt Acceptance in Interrupt Control Mode 0