MX25_ADCQ_CFG_REFP
refp = MX25_ADCQ_CFG_REFP(refp);
#define MX25_ADCQ_CFG_REFP_YP MX25_ADCQ_CFG_REFP(0)
#define MX25_ADCQ_CFG_REFP_XP MX25_ADCQ_CFG_REFP(1)
#define MX25_ADCQ_CFG_REFP_EXT MX25_ADCQ_CFG_REFP(2)
#define MX25_ADCQ_CFG_REFP_INT MX25_ADCQ_CFG_REFP(3)