CHAPTER 10 A/D CONVERTER
Preliminary User’s Manual U16846EJ1V0UD
190
Figure 10-9. Basic Operation of A/D Converter
Conversion time
Sampling time
Sampling
A/D conversion
Undefined
Conversion
result
A/D converter
operation
SAR
ADCR
INTAD
Conversion
result
A/D conversion operations are performed continuously until bit 7 (ADCS) of the A/D converter mode register (ADM)
is reset (0) by software.
If any of ADM, the analog input channel specification register (ADS), power-fail comparison mode register (PFM),
or power-fail comparison threshold register (PFT) is written during an A/D conversion operation, the conversion
operation is initialized, and if the ADCS bit is set (1), conversion starts again from the beginning.
RESET input makes the A/D conversion result register (ADCR) undefined.