NEC 78K0 Series User Manual page 316

Sampling time
A/D converter
Sampling
operation
Undefined
SAR
ADCR
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 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 sets the A/D conversion result register (ADCR, ADCRH) to 0000H or 00H.
316
CHAPTER 13 A/D CONVERTER
Figure 13-11. Basic Operation of A/D Converter
Conversion time
A/D conversion
Preliminary User's Manual U17260EJ3V1UD
Conversion
result
Conversion
result