ADC_CTL (CTL)

ADC_INTCTL (INTCTL)

ADC_DAT (DAT)

SWTRG : A/D Conversion Start\nA trigger to start one A/D conversion process.\nNote: This bit will be cleared to '0' automatically.
bits : 0 - 0 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

PD : Power Down ADC \nNote1: ADC power must be enabled before a trigger to get the data.\nNote2: It needs 100ms to wait analog block stable when setting PD from 1 to 0.
bits : 13 - 13 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

PDKEY : Power Down Keypad Detection\n
bits : 15 - 15 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

CHSEL : Analog Input Selection Signals\nNote1: ADC_CH0 is used for battery voltage detection. It includes an inherent resistor divider and a switch.\nNote2: User needs to pay attention to electric leakage with ADC_CH0 because the default CHSEL is selected to ADC_CH0, and ADC_CH0 has an internal resistor divider. If ADC_CH0 is connected to battery, there is a leakage path. Therefore, user can change CHSEL to other channel to cut off this path, when finishing battery detection.
bits : 16 - 18 (3 bit)
access : read-write

Enumeration:

End of enumeration elements list.

EXTSMPT : ADC Extend Sampling Time \nWhen A/D converting at high conversion rate, the sampling time of analog input voltage may not enough if the input channel loading is heavy, software can extend A/D sampling time after trigger source is coming to get enough sampling time.\nNote: The unit is ADC clock.
bits : 24 - 31 (8 bit)
access : read-write

ADCIF : ADC Conversion Done Interrupt Flag\nWhen finishing the sample process, the ADCIF bit will be set. If the ADCIEN is set, the interrupt will be transferred to NVIC.\n
bits : 0 - 0 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

KEYIF : Keypad Interrupt Flag\nIn the process of checking keypad, the KEYIF shows the state. ADC_CH2 is used for keypad. When ADC_CH2 is not equal to AVDDADC, the interrupt flag will be raised.\n
bits : 1 - 1 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

ADCIEN : ADC Interrupt Enable Control\n
bits : 8 - 8 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

KEYIEN : Keypad Interrupt Enable Control\n
bits : 9 - 9 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

RESULT : A/D Conversion Result\nThis field contains conversion result of ADC. When A/D conversion done, 12-bit ADC conversion result with unsigned format will be filled in RESULT[11:0].
bits : 0 - 11 (12 bit)
access : read-only