Rainbow-electronics ATmega32L Manuel d'utilisateur télécharger pdf (Page 213)

213

ATmega32(L)

2503C–AVR–10/02

less of any ongoing conversions. For a complete description of this bit, see “The ADC

Data Register – ADCL and ADCH” on page 215.

• Bits 4:0 – MUX4:0: Analog Channel and Gain Selection Bits

The value of these bits selects which combination of analog inputs are connected to the

ADC. These bits also select the gain for the differential channels. See Table 84 for

details.

If these bits are changed during a conversion, the change will not go in effect

until this conversion is complete (ADIF in ADCSRA is set).

Table 84. Input Channel and Gain Selections

MUX4..0

Single Ended

Input

Positive Differential

Input

Negative Differential

Input Gain

00000 ADC0

00001 ADC1

00010 ADC2

00011 ADC3 N/A

00100 ADC4

00101 ADC5

00110 ADC6

00111 ADC7

01000

ADC0 ADC0 10x

01001 ADC1 ADC0 10x

01010

(1)

ADC0 ADC0 200x

01011

(1)

ADC1 ADC0 200x

01100 ADC2 ADC2 10x

01101

ADC3 ADC2 10x

01110

(1)

ADC2 ADC2 200x

01111

(1)

ADC3 ADC2 200x

10000

ADC0 ADC1 1x

10001

ADC1 ADC1 1x

10010 N/A ADC2 ADC1 1x

10011

ADC3 ADC1 1x

10100

ADC4 ADC1 1x

10101 ADC5 ADC1 1x

10110

ADC6 ADC1 1x

10111

ADC7 ADC1 1x

11000 ADC0 ADC2 1x

11001

ADC1 ADC2 1x

11010

ADC2 ADC2 1x

11011 ADC3 ADC2 1x

11100

ADC4 ADC2 1x

1 2 ... 208 209 210 211 212 213 214 215 216 217 218 ... 312 313

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Rainbow-electronics ATmega32L Manuel d'utilisateur Page 213

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