Block Diagram - Renesas H8/3067 Series User Manual

Renesas 16-bit single-chip microcomputer
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Section 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
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
Rev. 4.00 Jan 26, 2006 page 92 of 938
REJ09B0276-0400
ISCR
IER
IRQ input
section ISR
Interrupt controller
Figure 5.1 Interrupt Controller Block Diagram
IPRA, IPRB
Interrupt
request
Priority
decision logic
Vector
number
SYSCR
CPU
I
CCR
UI
UE

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