HD6432633 Datasheet, PDF (176/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

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
SWDTEND to
TEI4
Interrupt controller
Priority
determination
IPR
CPU
Interrupt
request
Vector
number
I
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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