HD64F2168 Datasheet, PDF (112/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

SYSCR
NMI input
IRQ input
KIN input
WUE input
Internal interrupt sources
SWDTEND to IBFI3
INTM1, INTM0
NMIEG
NMI input
IRQ input
ISR
ISCR IER
KMIMR WUEMR
KIN, WUE
input
Interrupt controller
Priority level
determination
ICR
CPU
Interrupt
request
Vector number
I, UI
CCR
[Legend]
ICR:
ISCR:
IER:
ISR:
KMIMR:
WUEMR:
SYSCR:
Interrupt control register
IRQ sense control register
IRQ enable register
IRQ status register
Keyboard matrix interrupt mask register
Wake-up event interrupt mask register
System control register
Figure 5.1 Block Diagram of Interrupt Controller
Rev. 3.00, 03/04, page 72 of 830