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Chapter 11
A/D Converter
User’s Manual U16702EE3V2UD00
11.4.3 Operation
mode
Four operation modes are described below. The operation modes are set with bits MS and PLM of the
ADSCM0H register (refer to
11.3 ”Control Registers” on page 371
).
(1)
Select mode
In this mode, a single A/D conversion of one analog input specified with bits ANIS3 - ANIS00 of
the ADSCM0L register is performed.
The conversion result for that analog input is saved to the ADA0CRn register. A/D conversion
starts upon detection of a trigger, and the A/D conversion interrupt (INTAD) is output upon each
conversion completion.
Figure 11-10:
Example of Select Mode Operation (ANI2) (1/2)
(a) Timing Example
ANI2 (Input)
A/D conversion
Data 1
(ANI2)
Data 2
(ANI2)
Data 3
(ANI2)
Data 4
(ANI2)
Data 5
Data 6
(ANI2)
Data 7
(ANI2)
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Data 1
(ANI2)
Data 2
(ANI2)
Data 3
(ANI2)
Data 4
(ANI2)
Data 6
(ANI2)
ADA0CR2 register
INTAD interrupt
Conversion start
(ADSCM0H
register setting)
CE bit
set
CE bit
set
CE bit
set
CE bit
set
CE bit
set
Conversion start
(ADSCM0H
register setting)
(ANI2)
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