TINY_SPI_STATUS
while (!(readb(hw->base + TINY_SPI_STATUS) &
writeb(TINY_SPI_STATUS_TXR, hw->base + TINY_SPI_STATUS);
writeb(TINY_SPI_STATUS_TXE, hw->base + TINY_SPI_STATUS);
writeb(0, hw->base + TINY_SPI_STATUS);
hw->base + TINY_SPI_STATUS);
hw->base + TINY_SPI_STATUS);
while (!(readb(hw->base + TINY_SPI_STATUS) &