AE_DMAWRITE_EN
AE_WRITE_1(sc, AE_DMAWRITE_REG, AE_DMAWRITE_EN);
if (AE_READ_1(sc, AE_DMAWRITE_REG) == AE_DMAWRITE_EN)
AE_WRITE_1(sc, AE_DMAWRITE_REG, ~AE_DMAWRITE_EN);
AE_WRITE_1(sc, AE_DMAWRITE_REG, AE_DMAWRITE_EN);