BIT_MASK_RXGCK_HT_FIFOTHR
(((x) & BIT_MASK_RXGCK_HT_FIFOTHR) << BIT_SHIFT_RXGCK_HT_FIFOTHR)
(BIT_MASK_RXGCK_HT_FIFOTHR << BIT_SHIFT_RXGCK_HT_FIFOTHR)