RL78/G10 CHAPTER 10 A/D CONVERTER
R01UH0384EJ0311 Rev. 3.11 240
Dec 22, 2016
CHAPTER 10 A/D CONVERTER
The number of analog input channels of the A/D converter differs, depending on the product.
10-pin products: 4 channels (ANI0 to ANI3)
16-pin products: 7 channels (ANI0 to ANI6), internal reference voltage
Note
(0.815 V (typ.))
Note The internal reference voltage cannot be used for the A/D converter and comparator simultaneously. When the
internal reference voltage is selected as the target for conversion by the A/D converter, do not select the internal
reference voltage as the reference voltage of the comparator.
10.1 Function of A/D Converter
The A/D converter is used to convert analog input signals into digital values, and is configured to control up to 7
channels of A/D converter analog inputs. Ten-bit or eight-bit resolution can also be selected by using the ADTYP bit of A/D
converter mode register 2 (ADM2).
The A/D converter has the following function.
• 10-bit/8-bit resolution A/D conversion
Following the selection of one analog input channel from among ANI0 to ANI6, software initiates A/D conversion
with 10-bit or 8-bit resolution. An A/D conversion end interrupt request signal (INTAD) is generated on completion
of A/D conversion. The range of operating voltage for the A/D converter is from 2.4 to 5.5 V.
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