W_D_FIFO_THRESH
if (count > W_D_FIFO_THRESH)
count = W_D_FIFO_THRESH;
count = ReadW6692(card, W_D_RBCL) & (W_D_FIFO_THRESH - 1);
count = W_D_FIFO_THRESH;
W6692_empty_Dfifo(card, W_D_FIFO_THRESH);