DS1305_MIN
time->tm_min = bcd2bin(buf[DS1305_MIN]);
"alm0 read", buf[DS1305_SEC], buf[DS1305_MIN],
|| (DS1305_ALM_DISABLE & buf[DS1305_MIN])
alm->time.tm_min = bcd2bin(buf[DS1305_MIN]);
buf[1 + DS1305_MIN] = bin2bcd(alm->time.tm_min);
"alm0 write", buf[1 + DS1305_SEC], buf[1 + DS1305_MIN],