/* Determines if there is any space in the transmit FIFO. */
bool UARTSpaceAvail(uint32_t ui32Base)
/* Determines if there is any space in the transmit FIFO. */
bool UARTSpaceAvail(uint32_t ui32Base)
{
    ASSERT(_UARTBaseValid(ui32Base));
    return((HWREG(ui32Base + UART_O_FR) & UART_FR_TXFF) ? false : true);
}