/* Enables SIR (IrDA) mode on the specified UART. 
The  */
void xUARTIrDAConfig(unsigned long ulBase, unsigned long ulBaud, unsigned long ulConfig, unsigned long ulMode)
/* Enables SIR (IrDA) mode on the specified UART. 
The  */
void xUARTIrDAConfig(unsigned long ulBase, unsigned long ulBaud, unsigned long ulConfig, unsigned long ulMode)
{
    xASSERT(UARTBaseValid(ulBase));
    xASSERT(ulBaud != 0);
    xUARTConfigSet(ulBase, ulBaud, ulConfig);
    xHWREG(ulBase + UART_IRCR) &= ~UART_IRCR_INV_TX;
    xHWREG(ulBase + UART_IRCR) |= UART_IRCR_INV_RX;
}