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CHAPTER 12 8-BIT A/D CONVERTER (
µ
PD780344, 780344Y SUBSERIES)
User’s Manual U15798EJ2V0UD
Figure 12-5. Basic Operation of 8-Bit A/D Converter
Conversion time
Sampling time
Sampling
A/D conversion
Undefined
80H
C0H
or
40H
Conversion
result
A/D converter
operation
SAR
ADCR1
INTAD0
Conversion
result
A/D conversion operations are performed continuously until bit 7 (ADCS0) of A/D converter mode register 0 (ADM0)
is reset (0) by software.
If a write operation is performed to ADM0 or analog input channel specification register 0 (ADS0) during an A/D
conversion operation, the conversion operation is initialized, and if the ADCS0 bit is set (1), conversion starts again
from the beginning.
RESET input sets A/D conversion result register 1 (ADCR1) to 00H.
The completion of A/D conversion can be confirmed using the A/D conversion completion interrupt request flag
(ADIF0).
Содержание mPD780344 Series
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