Renesas Single-Chip Microcomputer M38C89T-ADF User Manual Page 30

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Rev.1.00 May 22 2012
REJ09B0566
4-10
Library Reference
R_INTC_ControlExtInterrupt
4
4.2.2 33BInterrupt Control Unit
Remarks The NMI pin was enabled during R_INTC_CreateExtInterrupt and cannot be disabled (an MCU design
feature).
When disabling an IRQn pin, the Interrupt Request flag will be cleared automatically.
A callback function may be called once more if a valid event occurs just before the interrupt pin is
disabled.
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