upd78f9211grt2-jjg-a ETC-unknow, upd78f9211grt2-jjg-a Datasheet - Page 147

• Manufacturer Part Number: upd78f9211grt2-jjg-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: ETC-unknow

9.1
ANI3) with a resolution of 10 bits.
conversion time.
The A/D converter converts an analog input signal into a digital value, and consists of up to four channels (ANI0 to
The A/D converter has the following function.
• 10-bit resolution A/D conversion
Figure 9-1 shows the timing of sampling and A/D conversion, and Table 9-1 shows the sampling time and A/D
Note 2 or 3 clocks are required from the ADCS rising to sampling start.
10-bit resolution A/D conversion is carried out repeatedly for one channel selected from analog inputs ANI0 to
ANI3. Each time an A/D conversion operation ends, an interrupt request (INTAD) is generated.
Functions of A/D Converter
Sampling
INTAD
ADCS
timing
Figure 9-1. Timing of A/D Converter Sampling and A/D Conversion
ADCS ← 1 or ADS rewrite
Note
Sampling
CHAPTER 9 A/D CONVERTER
time
User’s Manual U16994EJ3V0UD
Conversion time
Sampling
Conversion time
time
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