Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 15 A/D CONVERTER
R01UH0042EJ0500 Rev.5.00 Page 700 of 1513
Aug 12, 2011
(3) One-shot select mode
In this mode, the voltage of one analog input pin specified by the ADA0S register is converted into a digital value
only once.
The conversion result is stored in the ADA0CRn register corresponding to the analog input pin. In this mode, an
analog input pin and an ADA0CRn register correspond on a one-to-one basis. When A/D conversion has been
completed once, the INTAD signal is generated. The A/D conversion operation is stopped after it has been
completed (n = 0 to 11).
Figure 15-6. Timing Example of One-Shot Select Mode Operation (ADA0S Register = 01H)
ANI1
A/D conversion
Data 1
(ANI1)
Data 6
(ANI1)
Data 1 Data 2 Data 3
Data 4 Data
5
Data 6 Data 7
Data 1
(ANI1)
Data 6
(ANI1)
ADA0CR1
INTAD
Conversion start
Set ADA0CE bit = 1
Conversion start
Set ADA0CE bit = 1
Conversion end
Conversion end
(4) One-shot scan mode
In this mode, analog input pins are sequentially selected, from the ANI0 pin to the pin specified by the ADA0S
register, and their values are converted into digital values .
Each conversion result is stored in the ADA0CRn register corresponding to the analog input pin. When conversion
of the analog input pin specified by the ADA0S register is complete, the INTAD signal is generated. A/D conversion
is stopped after it has been completed (n = 0 to 11).