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Chapter 20
A/D Converter (ADC)
Preliminary User’s Manual U17566EE1V2UM00
Caution
1.
If bit 0 is written, this is ignored.
2.
Changing the ADA0FR3 to ADA0FR0 bits of the ADA0M1 register during
conversion (ADA0CE0 bit = 1) is prohibited.
3.
When not using the A/D Converter, stop the operation by setting the
ADA0CE bit to 0 to reduce the current consumption.
(2)
ADA0M1 - ADC mode register 1
The ADA0M1 register is an 8-bit register that controls the conversion time
specification.
This register can be read or written in 8-bit or 1-bit units.
Reset input clears this bit to 00H.
Caution
1.
The bit 7 must be changed to “1” after reset and must not be changed
afterwards.
2.
Be sure to clear bits 5 and 4 to 0.
For A/D conversion time settings, see
Table 20-2
.
After reset: 00H
R/W
Address: FFFFF201H
7
6
5
4
3
2
1
0
ADA0M1
1
0
0
0
ADA0FR3
ADA0FR2
ADA0FR1
ADA0FR0
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