NEC V850/SA1 mPD703015 Preliminary User's Manual page 304

(6) ANI0 through ANI11 pins
These are analog input pins for the 12 channels of the A/D converter, and are used to input analog signals to be
converted into digital signals. Pins other than ones selected as analog input with the analog input channel
specification register (ADS) can be used as input ports.
Caution Make sure that the voltages input to ANI0 through ANI11 do not exceed the rated values. If a
voltage higher than AV
ratings) is input to a channel, the conversion value of the channel is undefined, and the
conversion values of the other channels may also be affected.
(7) AV pin
REF
This pin inputs a reference voltage to the A/D converter.
The signals input to the ANI0 through ANI11 pins are converted into digital signals based on the voltage applied
across AV and AV
REF SS
(8) AV pin
SS
This is the ground pin of the A/D converter. Always keep the potential at this pin the same as that at the V
even when the A/D converter is not in use.
(9) AV pin
DD
This is the analog power supply pin of the A/D converter. Always keep the potential at this pin the same as that
at the V pin even when the A/D converter is not in use.
DD
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CHAPTER 11
or lower than AV
REF
.
A/D CONVERTER
(even within the range of the absolute maximum
SS
pin
SS