Rainbow Electronics ATmega64M1 - Manual (Page 266)

266
8209A–AVR–08/09
ATmega16M1/32M1/64M1
Figure 25-1. Digital to Analog Converter Block Schematic
25.3 Operation
The Digital to Analog Converter generates an analog signal proportional to the value of the DAC
registers value.
In order to have an accurate sampling frequency control, there is the possibility to update the
DAC input values through different trigger events.
DAC Output
Driver
DALA DAOE DAEN - DAATE DATS2 DATS1 DATS0
10
DACH DACL
DACON
10 10
1 0
VRef
D2A pin
DAC
Result
Update DAC
Trigger
DAC Low bits DAC High bits
Edge
Detector
Sources