h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 160

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 5 Interrupt Controller
6. Next, the I bit in CCR is set to 1. This masks all interrupts except for NMI and address break
7. The CPU generates a vector address for the accepted interrupt and starts execution of the
Figure 5.4 Flowchart of Procedure up to Interrupt Acceptance in Interrupt Control Mode 0
Rev. 3.00 Mar 21, 2006 page 106 of 788
REJ09B0300-0300
interrupts.
interrupt handling routine at the address indicated by the contents of the vector address in the
vector table.
IRQ0
An interrupt with interrupt
Yes
control level 1?
IRQ1
No
Yes
Yes
Yes
No
IBFI3
Branch to interrupt handling routine
Program excution state
Yes
Read vector address
Interrupt generated?
Save PC and CCR
No
I = 0
I
NMI
1
No
Yes
Yes
IRQ0
Yes
IRQ1
No
No
No
Yes
No
IBFI3
Yes
Hold pending