Nuvoton /M05x_registers /ADC /ADCMPR0

Compare Enable 1 = Enable compare. 0 = Disable compare. Set this bit to 1 to enable compare CMPD[11:0] with specified channel conversion result when converted data is loaded into ADDR register.

Compare Interrupt Enable 1 = Enable compare function interrupt. 0 = Disable compare function interrupt. If the compare function is enabled and the compare condition matches the settings of CMPCOND and CMPMATCNT, CMPF0 bit will be asserted. If CMPIE is set to 1, a compare interrupt request is generated.

Compare Condition 1= Set the compare condition as that when a 12-bit A/D conversion result is greater or equal to the 12-bit CMPD(ADCMPR0[27:16]), the internal match counter will increase one. 0= Set the compare condition as that when a 12-bit A/D conversion result is less than the 12-bit CMPD(ADCMPR0[27:16]), the internal match counter will increase one. Note: When the internal counter reaches the value to (CMPMATCNT +1), the CMPF0 bit will be set.

Compare Channel Selection 000 = Channel 0 conversion result is selected to be compared. 001 = Channel 1 conversion result is selected to be compared. 010 = Channel 2 conversion result is selected to be compared. 011 = Channel 3 conversion result is selected to be compared. 100 = Channel 4 conversion result is selected to be compared. 101 = Channel 5 conversion result is selected to be compared. 110 = Channel 6 conversion result is selected to be compared. 111 = Channel 7 conversion result is selected to be compared.

Compare Match Count When the specified A/D channel analog conversion result matches the compare condition defined by CMPCOND[2], the internal match counter will increase 1. When the internal counter reaches the value to (CMPMATCNT +1), the CMPF0 bit will be set.

Comparison Data The 12 bits data is used to compare with conversion result of specified channel. Software can use it to monitor the external analog input pin voltage transition in scan mode without imposing a load on software.