HD6473228P10V Datasheet, PDF (81/301 Pages) Renesas Technology Corp – Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp

Program execution
NMI ?
Y
Interrupt
N
request
present?
Y
N
IRQ0 ?
Y
N
IRQ1? ^N
Y
TXI 1 ?
Y
I=0 in
CCR?
Y
N
Pending
Save PC
PC: Program Counter
Save CCR
CCR: Condition Code Register
I ←1, masking all
interrupts except NMI
I: Interrupt mask bit
To software
interrupt-handling routine
Figure 4-4. Hardware Interrupt-Handling Sequence
Figure. 4-4
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