/* Unregisters an interrupt handler for a SPI interrupt. */
void SPIIntUnregister(unsigned long ulBase)
/* Unregisters an interrupt handler for a SPI interrupt. */
void SPIIntUnregister(unsigned long ulBase)
{
    unsigned long ulInt;
    ulInt = SPIIntNumberGet(ulBase);
    IntDisable(ulInt);
    IntUnregister(ulInt);
}