atxmega128a4-mu ATMEL Corporation, atxmega128a4-mu Datasheet - Page 35
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atxmega128a4-mu
Manufacturer Part Number
atxmega128a4-mu
Description
Atxmega16a4 8/16-bit Avr Xmega Microcontroller
Manufacturer
ATMEL Corporation
Datasheet
1.ATXMEGA128A4-MU.pdf
(58 pages)
- Current page: 35 of 58
- Download datasheet (689Kb)
8069A–AVR–02/08
Figure 23-1. ADC overview
Each ADC has 4 registers defining a MUX selection with a corresponding result register. This
means that 4 channels may be sampled within 1.5 µs without any intervention by the application
other than starting the conversion, and the result will be available in 4 data registers.
The ADC may be configured to make 8-, 10- or 12-bit results, reducing the conversion time
(propagation delay) from 5.3 µs for 12-bit to 3.1 µs for 8-bit resolution.
ADC conversion results are provided left- or right adjusted with optional ‘1’ or ‘0’ padding. This
eases calculation when the result is represented as a signed integer (signed 16-bit number).
PORTA and PORTB each have one ADC. Notation of these peripherals are ADCA and ADCB.
Channel C MUX selection
Channel D MUX selection
Channel A MUX selection
Channel B MUX selection
1-64 X
Reference selection
Configuration
ADC
Trigger
Event
Channel A
Channel B
Channel C
Channel D
Register
Register
Register
Register
ATxmega A4
35
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