READ_DIRECTION
amd_write8(amd, DMA_Cmd, READ_DIRECTION|DMA_IDLE_CMD);
amd_write8(amd, DMA_Cmd, READ_DIRECTION|DMA_BLAST_CMD);
amd_write8(amd, DMA_Cmd, READ_DIRECTION|DMA_IDLE_CMD);
DataIO_Comm(amd, pSRB, READ_DIRECTION);