(((BKP) == RTC_BKP_DR0) || \
((BKP) == RTC_BKP_DR1) || \
((BKP) == RTC_BKP_DR2) || \
((BKP) == RTC_BKP_DR3) || \
((BKP) == RTC_BKP_DR4) || \
((BKP) == RTC_BKP_DR5) || \
((BKP) == RTC_BKP_DR6) || \
((BKP) == RTC_BKP_DR7) || \
((BKP) == RTC_BKP_DR8) || \
((BKP) == RTC_BKP_DR9) || \
((BKP) == RTC_BKP_DR10) || \
((BKP) == RTC_BKP_DR11) || \
((BKP) == RTC_BKP_DR12) || \
((BKP) == RTC_BKP_DR13) || \
((BKP) == RTC_BKP_DR14) || \
((BKP) == RTC_BKP_DR15) || \
((BKP) == RTC_BKP_DR16) || \
((BKP) == RTC_BKP_DR17) || \
((BKP) == RTC_BKP_DR18) || \
((BKP) == RTC_BKP_DR19))