173
Preliminary User’s Manual U13420EJ2V0UM00
CHAPTER 11 A/D CONVERTER
11.1 A/D Converter Functions
A/D converter is an 8-bit resolution converter that converts analog inputs into digital values. It can control up to
8 analog input channels (ANI0 to ANI7).
A/D conversion operation is started by setting the A/D converter mode register (ADM0).
Select one channel for analog input from ANI0 to ANI7 to perform A/D conversion. A/D conversion operation is
repeated. Each time an A/D conversion operation ends, an interrupt request (INTAD0) is generated.
Figure 11-1. A/D Converter Block Diagram
ANI0
ANI1
ANI2
ANI3
ANI4
ANI5
ANI6
ANI7
Sample & hold circuit
Voltage comparator
Successive
approximation
register (SAR)
Control circuit
3
A/D conversion
result register (ADCR0)
AV
REF
(Also used as
analog power supply)
AV
SS
INTAD0
A/D converter
mode register (ADM0)
Analog input channel
specification register (ADS0)
Internal bus
ADS02 ADS01 ADS00
ADCS0 FR02 FR01 FR00
Selector
Tap selector
Serial resistor string
Содержание mPD780065 Series
Страница 2: ...Preliminary User s Manual U13420EJ2V0UM00 2 MEMO ...
Страница 10: ...10 Preliminary User s Manual U13420EJ2V0UM00 MEMO ...
Страница 22: ...22 Preliminary User s Manual U13420EJ2V0UM00 MEMO ...
Страница 134: ...134 Preliminary User s Manual U13420EJ2V0UM00 MEMO ...
Страница 154: ...154 Preliminary User s Manual U13420EJ2V0UM00 MEMO ...
Страница 160: ...160 Preliminary User s Manual U13420EJ2V0UM00 MEMO ...
Страница 186: ...186 Preliminary User s Manual U13420EJ2V0UM00 MEMO ...
Страница 326: ...326 Preliminary User s Manual U13420EJ2V0UM00 MEMO ...
Страница 342: ...342 Preliminary User s Manual U13420EJ2V0UM00 MEMO ...
Страница 350: ...350 Preliminary User s Manual U13420EJ2V0UM00 MEMO ...