/* Disables a GPIO pin as a trigger to start a DMA transaction. */
void GPIODMATriggerDisable(unsigned long ulPort, unsigned char ucPins)
/* Disables a GPIO pin as a trigger to start a DMA transaction. */
void GPIODMATriggerDisable(unsigned long ulPort, unsigned char ucPins)
{
    ASSERT(GPIOBaseValid(ulPort));
    HWREG(ulPort + GPIO_O_DMACTL) &= (~ucPins);
}