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Some RX MCU peripherals use only fixed interrupt vectors, while some others also use software configurable interrupt vectors.
The software configurable interrupt vectors can configure which interrupt is enabled by the user depending on the application.
And, the two kinds of The software configurable interrupt setting is available, it separates as the using source clock these are PCLKA and PCLCBis separated into two types for each clock source (PCKLA and PCLKB) as INTA and INTB.
How to set the software configurable interrupt depends on the driver you are using.
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