/* Disable I2C second slave address of the specified I2C port. 
The  */
void I2CSecondAddressDisable(unsigned long ulBase)
/* Disable I2C second slave address of the specified I2C port. 
The  */
void I2CSecondAddressDisable(unsigned long ulBase)
{
    xASSERT((ulBase == I2C0_BASE) || ((ulBase == I2C1_BASE)));
    xHWREGB(ulBase + I2C_SMB) &= ~(I2C_SMB_SIICAEN);
}