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How to set the values of bits CKS 1 to 0 and BRR in SMR?

Latest Updated:03/31/2011

Question:

When the SCI is used for external clock input in clock synchronous mode, how should I set the values of bits CKS 1 to 0 and the bitrate register (BRR) in the serial mode register (SMR)?

Answer:

Bits CKS 1to 0 and BRR in SMR are not used for external clock input. Therefore, there is no need to set bits CKS 1to 0 and BRR in SMR.
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