upd78f0148m1gka1-9eu Renesas Electronics Corporation., upd78f0148m1gka1-9eu Datasheet - Page 278

• Manufacturer Part Number: upd78f0148m1gka1-9eu
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

A/D converter
operation
is reset (0) by software.
comparison mode register (PFM), or power-fail comparison threshold register (PFT) 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.
278
A/D conversion operations are performed continuously until bit 7 (ADCS) of the A/D converter mode register (ADM)
If a write operation is performed to one of the ADM, analog input channel specification register (ADS), power-fail
RESET input makes the A/D conversion result register (ADCR) undefined.
INTAD
ADCR
SAR
Undefined
Sampling
Sampling time
Figure 13-9. Basic Operation of A/D Converter
CHAPTER 13 A/D CONVERTER
User’s Manual U15947EJ3V1UD
Conversion time
A/D conversion
Conversion
result
Conversion
result