SDHC_INT_SIGNAL_EN
HSET4(sc, SDHC_INT_SIGNAL_EN,
HCLR4(sc, SDHC_INT_SIGNAL_EN,
HWRITE4(sc, SDHC_INT_SIGNAL_EN, 0);
HWRITE4(sc, SDHC_INT_SIGNAL_EN, imask);
HSET4(sc, SDHC_INT_SIGNAL_EN, SDHC_INT_STATUS_CINT);
HCLR4(sc, SDHC_INT_SIGNAL_EN, SDHC_INT_STATUS_CINT);