HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 143

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

5.6.3
Figure 5.7 shows the interrupt exception handling sequence. The example shown is for the case
where interrupt control mode 0 is set in advanced mode, and the program area and stack area are
in on-chip memory.
Interrupt Exception Handling Sequence
Figure 5.6 Flowchart of Procedure Up to Interrupt Acceptance
IRQ0
An interrupt with interrupt
Yes
control level 1?
IRQ1
No
I = 0
Yes
Yes
Yes
Yes
in Interrupt Control Mode 1
Yes
IFBFI3
Branch to interrupt handling routine
No
Program excution state
Read vector address
Interrupt generated?
Yes
Save PC and CCR
I
No
UI = 0
No
1, UI
NMI
No
Yes
IRQ0
1
Yes
No
IRQ1
No
I = 0
No
Yes
Yes
Rev. 2.0, 08/02, page 103 of 788
IFBFI3
No
Yes
No
Hold pending