HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 123

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

5.1.2
A block diagram of the interrupt controller is shown in Figure 5.1.
104
Internal interrupt
request
WOVI to TEI
Legend
ISCR
IER
ISR
IPR
SYSCR
NMI input
IRQ input
SYSCR
Block Diagram
: IRQ sense control register
: IRQ enable register
: IRQ status register
: Interrupt priority register
: System control register
Interrupt controller
Figure 5.1 Block Diagram of Interrupt Controller
INTM1 INTM0
NMIEG
ISCR
NMI input unit
IRQ input unit
ISR
IER
determination
Priority
IPR
Interrupt
request
Vector
number
I2 to I0
I, UI
CPU
CCR
EXR