NEC 78K0S/KA1+ User Manual page 166

Sampling time
A/D converter
Sampling
operation
Undefined
SAR
ADCR,
ADCRH
INTAD
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 a write operation is performed to ADM or the analog input channel specification register (ADS) 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 signal generation makes the A/D conversion result register (ADCR, ADCRH) undefined.
166
CHAPTER 10 A/D CONVERTER
Figure 10-10. Basic Operation of A/D Converter
Conversion time
A/D conversion
User's Manual U16898EJ3V0UD
Conversion
result
Conversion
result