102
5.1.2
Block Diagram
A block diagram of the interrupt controller is shown in Figure 5-1.
SYSCR
NMI input
IRQ input
Internal interrupt
request
SWDTEND to
RM0
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
Содержание H8S/2645
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