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How to rewrite the backup PC register (BPC)?

Latest Updated:06/20/2013

Question:

I have tried to rewrite the backup PC register (BPC), but it wouldn't rewrite.

Answer:

Check that you aren't in user mode.
The BPC cannot be rewritten in user mode. Rewrite in supervisor mode.
For more information, please refer to the "Processor Mode" section in the "CPU" chapter of the hardware manual.
Suitable Products
RX62N, RX621
RX62T
RX610
RX62G
RX630
RX63N, RX631
RX63T
RX210
RX220
RX110
RX111