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Is any special setting required for voltage detection?

Latest Updated:06/10/2013

Question:

The voltage detection circuit is not working. Is any special setting required?

Answer:

This product has a register write protection function that protects important registers from being rewritten. To perform settings to a protected register, writing must first be enabled by the above function.

For the voltage detection circuit, set the PRCR.PRC3 bit to 1 and then set the related registers. However, note that when rewriting the PRCR register, it is necessary to write A5 to the upper 8 bits and an arbitrary value to the lower 8 bits, in 16-bit units.

Suitable Products
RX630
RX63N, RX631
RX63T
RX220
RX110
RX111