UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 413

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

result register (ADCR). This allows fast, high-precision conversion to be performed (conversion time of 9.6 s when f
= 12.5 MHz and high-speed conversion is used).
• Hardware start : Conversion started by trigger input (INTP5).
• Software start : Conversion started in accordance with A/D converter mode register (ADM) bit setting.
• Scan mode : Multiple analog inputs are selected in order, and conversion data is obtained from all pins.
• Select mode: One pin is used as the analog input, and conversion values are obtained in succession.
values to be transferred to memory in succession by means of macro service.
14.1 CONFIGURATION
The PD784026 incorporates an analog/digital (A/D) converter with 8 multiplexed analog inputs (ANI0 to ANI7).
The successive approximation conversion method is used, and the conversion result is held in the 8-bit A/D conversion
There are two modes for starting A/D conversion, as follows:
After start-up, there are two operating modes, as follows:
Stoppage of all the above modes and conversion operations is specified by the ADM register.
When the conversion result is transferred to the ADCR, an INTAD interrupt request is generated. This allows conversion
The A/D converter configuration is shown in Figure 14-1.
CHAPTER 14 A/D CONVERTER
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CLK