HD6432345 Datasheet, PDF (123/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

5.1.2 Block Diagram
A block diagram of the interrupt controller is shown in Figure 5.1.
SYSCR
NMI input
IRQ input
INTM1 INTM0
NMIEG
NMI input unit
IRQ input unit
ISR
ISCR IER
Internal interrupt
request
WOVI to TEI
Interrupt controller
Priority
determination
IPR
CPU
Interrupt
request
Vector
number
I, UI
I2 to I0
CCR
EXR
Legend
ISCR : IRQ sense control register
IER : IRQ enable register
ISR : IRQ status register
IPR : Interrupt priority register
SYSCR : System control register
Figure 5.1 Block Diagram of Interrupt Controller
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