RL78/G15 CHAPTER 12 SERIAL ARRAY UNIT
R01UH0959EJ0110 Rev.1.10 Page 380 of 765
Mar 7, 2023
Caution 1. Setting SDRmn[15:9] to 0000000B or 0000001B is prohibited when UART is used.
Caution 2. Setting SDRmn[15:9] to 0000000B is prohibited when simplified I
2
C is used. Set SDRmn[15:9] to
0000001B or greater.
Caution 3. When operation is stopped (SEmn = 0), do not rewrite SDRmn[7:0] by an 8-bit memory
manipulation instruction (SDRmn[15:9] are all cleared to 0).
Remark 1. For the function of the lower 8 or 9 bits of the SDRmn register, see 12.2 Configuration of Serial Array
Unit.
Remark 2. m: Unit number (m = 0), n: Channel number (n = 0, 1)
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