SCP_CPR_SD_3V
scoop0_set_card_power(SD_CARD, on ? SCP_CPR_SD_3V : SCP_CPR_OFF);
cpr |= SCP_CPR_SD_3V;
if (!ISSET(cpr, SCP_CPR_5V) && !ISSET(cpr, SCP_CPR_SD_3V))
cpr &= ~SCP_CPR_SD_3V;
if (!ISSET(cpr, SCP_CPR_5V) && !ISSET(cpr, SCP_CPR_SD_3V)) {