LPC18XX_ANALOG_PIN
if (function == FUNC_ADC && (pin->analog & LPC18XX_ANALOG_PIN)) {
if (function == FUNC_DAC && (pin->analog & LPC18XX_ANALOG_PIN)) {
#define ADC0 (LPC18XX_ANALOG_PIN | (0x00 << 5))
#define ADC1 (LPC18XX_ANALOG_PIN | (0x01 << 5))
#define DAC LPC18XX_ANALOG_PIN