h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 148

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 5 Interrupt Controller
5.6.3
Figure 5.8 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.
Rev. 3.00 Jan 25, 2006 page 96 of 872
REJ09B0286-0300
Figure 5.7 Flowchart of Procedure Up to Interrupt Acceptance in Interrupt
Interrupt Exception Handling Sequence
IRQ0
An interrupt with interrupt
Yes
control level 1?
No
IRQ1
I = 0
Yes
Yes
Yes
Yes
Yes
MMCIC
Branch to interrupt handling routine
No
Control Mode 1
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
MMCIC
No
Yes
No
Hold pending