h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 110

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

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.
Rev. 2.00, 03/04, page 78 of 534
Figure 5.6 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
USBI2
Branch to interrupt handling routine
No
Program excution state
Control Mode 1
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
USBI2
No
Yes
No
Hold pending