NEC PD78F9488 Manuale Utente
User’s Manual U15331EJ4V1UD
173
CHAPTER 10 10-BIT A/D CONVERTER
10.1 10-Bit A/D Converter Functions
The 10-bit A/D converter is a 10-bit resolution converter used to convert analog inputs into digital signals. This
converter can control eight channels (ANI0 to ANI7) of analog inputs.
A/D conversion can only be started by software.
One of analog inputs ANI0 to ANI7 is selected for A/D conversion. A/D conversion is performed repeatedly, with
One of analog inputs ANI0 to ANI7 is selected for A/D conversion. A/D conversion is performed repeatedly, with
an interrupt request (INTAD0) being issued each time A/D conversion is complete.
10.2 10-Bit A/D Converter Configuration
The 10-bit A/D converter includes the following hardware.
Table 10-1. Configuration of 10-Bit A/D Converter
Item Configuration
Analog inputs
8 channels (ANI0 to ANI7)
Registers Successive
approximation register (SAR)
A/D conversion result register 0 (ADCRL0)
Control registers
A/D converter mode register 0 (ADML0)
Analog input channel specification register 0 (ADS0)
Analog input channel specification register 0 (ADS0)