ADIS16400_SMPL_PRD_TIME_BASE
sps = (t & ADIS16400_SMPL_PRD_TIME_BASE) ? 52851 : 1638404;
val |= ADIS16400_SMPL_PRD_TIME_BASE;
if (t >= 0x0A || (val & ADIS16400_SMPL_PRD_TIME_BASE))