D12320VF25IV Datasheet, PDF (144/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 5 Interrupt Controller
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 TEI
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
Rev.6.00 Sep. 27, 2007 Page 112 of 1268
REJ09B0220-0600