Rainbow-electronics Atmega169L Manuel d'utilisateur télécharger pdf (Page 195)

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ATmega169V/L

2514A–AVR–08/02

In Free Running mode, a new conversion will be started immediately after the conver-

sion completes, while ADSC remains high. For a summary of conversion times, see

Table 87.

Figure 85. ADC Timing Diagram, First Conversion (Single Conversion Mode)

Figure 86. ADC Timing Diagram, Single Conversion

Figure 87. ADC Timing Diagram, Auto Triggered Conversion

Sign and MSB of Result

LSB of Result

ADC Clock

ADSC

Sample & Hold

ADIF

ADCH

ADCL

Cycle Number

ADEN

1 212

14 15

16 17

18 19 20 21 22 23

24 25

1 2

First Conversion

Conversion

MUX and REFS

Update

MUX and REFS

Update

Conversion

Complete

2 3 4 5 6 7 8

9 10 11 12 13

Sign and MSB of Result

LSB of Result

ADC Clock

ADSC

ADIF

ADCH

ADCL

Cycle Number

One Conversion Next Conversion

Sample & Hold

MUX and REFS

Update

Conversion

Complete

MUX and REFS

Update

1 2 3 4 5 6 7 8

10 11 12 13

Sign and MSB of Result

LSB of Result

ADC Clock

Trigger

Source

ADIF

ADCH

ADCL

Cycle Number

One Conversion Next Conversion

Conversion

Complete

Prescaler

Reset

ADATE

Prescaler

Reset

Sample &

Hold

MUX and REFS

Update

1 2 ... 190 191 192 193 194 195 196 197 198 199 200 ... 316 317

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Rainbow-electronics Atmega169L Manuel d'utilisateur Page 195

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