ATMEGA32A_1 Datasheet, PDF (213/352 Pages) ATMEL Corporation – 8-bit Microcontroller with 32K Bytes In-System Programmable Flash

ATmega32A
Figure 22-5. ADC Timing Diagram, Single Conversion
One Conversion
Next Conversion
Cycle Number
ADC Clock
ADSC
ADIF
ADCH
ADCL
1 2 3 4 5 6 7 8 9 10 11 12 13
123
Sample & Hold
MUX and REFS
Update
Conversion
Complete
MSB of Result
LSB of Result
MUX and REFS
Update
Figure 22-6. ADC Timing Diagram, Auto Triggered Conversion
One Conversion
Next Conversion
Cycle Number
1 2 3 4 5 6 7 8 9 10 11 12 13
12
ADC Clock
Trigger
Source
ADATE
ADIF
ADCH
MSB of Result
ADCL
LSB of Result
Prescaler
Reset
Sample & Hold
MUX and REFS
Update
Conversion
Complete
Prescaler
Reset
Figure 22-7. ADC Timing Diagram, Free Running Conversion
One Conversion
Next Conversion
Cycle Number ^{11 12 13 1}
2
3
4
ADC Clock
ADSC
ADIF
ADCH
MSB of Result
ADCL
LSB of Result
Conversion
Complete
Sample & Hold
MUX and REFS
Update
8155B–AVR–07/09
213