SHREG_SCSMR
SHREG_SCSMR = SCSMR_CA; /* clock sync mode */
SHREG_SCSMR = 0;
SHREG_SCSMR = SCSMR_CA;
SHREG_SCSMR = 0;
SHREG_SCSMR = SCSMR_CA;
SHREG_SCSMR = 0x00; /* Async,8bit,NonParity,Even,1Stop,NoMulti */