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How to operate vector interrupt with the main clock?

Last Updated:12/26/2017

Question:

Is it necessary to input an instruction that makes the CPU clock the main clock at the beginning of the vector interrupt to operate the vector interrupt with the main clock?

Answer:

It is necessary to start oscillation of the main clock after releasing from the standby (STOP / HALT) mode.  
After the oscillation stabilizes, you have to switch to the main clock.
Suitable Products
RL78 Family
78K Family