HD6413008VF25 Datasheet, PDF (122/688 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

5. Interrupt Controller
5.1.2 Block Diagram
Figure 5.1 shows a block diagram of the interrupt controller.
NMI
input
IRQ input
OVF
TME
.......
...
TEI
TEIE
ISCR IER
IRQ input
section ISR
IPRA, IPRB
Interrupt
Priority
request
decision logic
Vector
number
Interrupt controller
Legend:
ISCR: IRQ sense control register
IER: IRQ enable register
ISR: IRQ status register
IPRA: Interrupt priority register A
IPRB: Interrupt priority register B
SYSCR: System control register
UE
SYSCR
Figure 5.1 Interrupt Controller Block Diagram
CPU
I
CCR
UI
Rev.4.00 Aug. 20, 2007 Page 76 of 638
REJ09B0395-0400