SDHC_SPEC_VERS_SHIFT
sdhcver = SDHC_SPEC_VERS_300 << SDHC_SPEC_VERS_SHIFT;
sdhcver = SDHC_SPEC_NOVERS << SDHC_SPEC_VERS_SHIFT;
(((hcv) >> SDHC_SPEC_VERS_SHIFT) & SDHC_SPEC_VERS_MASK)