Datasheet

Table Of Contents
Section 5 Interrupt Controller
Page 84 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
A block diagram of the interrupt controller is shown in figure 5.1.
SYSCR
NMI input
IRQ input
Internal interrupt
request
SWDTEND to EXIRQ1
INTM1, INTM0
NMIEG
NMI input unit
IRQ input unit
ISR
ISCR IER
IPR
Interrupt controller
Priority
determination
Interrupt
request
Vector number
I
I2 to I0
CCR
EXR
CPU
ISCR:
IER:
ISR:
IPR:
SYSCR:
IRQ sense control register
IRQ enable register
IRQ status register
Interrupt priority register
System control register
Legend:
Figure 5.1 Block Diagram of Interrupt Controller