XSDFEC_AXIS_IN_ENABLE_MASK
sdfec_started = (reg_value & XSDFEC_AXIS_IN_ENABLE_MASK) > 0;
(XSDFEC_AXIS_OUT_ENABLE_MASK | XSDFEC_AXIS_IN_ENABLE_MASK)
regread &= (~XSDFEC_AXIS_IN_ENABLE_MASK);