mc_read
while ((mc_read(MC_REGA) & MC_REGA_UIP) != 0)
sec = mc_read(MC_SEC);
min = mc_read(MC_MIN);
hour = mc_read(MC_HOUR);
day = mc_read(MC_DOM);
month = mc_read(MC_MONTH);
year = mc_read(MC_YEAR) + 1900;
static uint8_t mc_read(u_int);