/* Enables the I2S transmit and receive modules for operation. */
void I2STxRxEnable(unsigned long ulBase)
/* Enables the I2S transmit and receive modules for operation. */
void I2STxRxEnable(unsigned long ulBase)
{
    ASSERT(ulBase == I2S0_BASE);
    HWREG(ulBase + I2S_O_TXISM) = I2S_TXISM_FFM;
    HWREG(ulBase + I2S_O_RXISM) = I2S_RXISM_FFM;
    HWREG(ulBase + I2S_O_CFG) |= I2S_CFG_TXEN | I2S_CFG_RXEN;
}