rvin_read
rvin_write(vin, rvin_read(vin, VNMC_REG) & ~VNMC_ME, VNMC_REG);
status = rvin_read(vin, VNINTS_REG);
vnms = rvin_read(vin, VNMS_REG);
vnmc = rvin_read(vin, VNMC_REG);
dmr = rvin_read(vin, VNDMR_REG) & ~VNDMR_ABIT;
dmr = rvin_read(vin, VNDMR_REG) & ~VNDMR_A8BIT_MASK;
vnmc = rvin_read(vin, VNMC_REG);
return rvin_read(vin, VNMS_REG) & VNMS_CA;