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MB86R02 'Jade-D' Hardware Manual V1.64
9.4 Block diagram
The block diagram of IRC is shown in Figure 9-2.
FIQ
FIQTEST
Interrupt factor 00
Interrupt factor 29
DICR1, 0
IRQTEST
Bus request cancel request
IRQ interrupt control section
Level determination
ILM
Compare
ICR00
ICR31
Figure 9-2 Block diagram of IRC
IRQ vector generation
TBR
VCT
IRQ assertion flag
IRQF
IRQM
Display of accepted ICR level
ICRMN
Compare
HRCL
FIQ
Timing
control
Cancellation of
STOP/SLEEP
mode
IRQ assertion
Bus request
cancel request
9-7
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