Rainbow-electronics ATmega64L Bedienungsanleitung PDF herunterladen (Seite 194)

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ATmega16(L)

2466B–09/01

Analog Comparator

Multiplexed Input

It is possible to select any of the ADC7..0 pins to replace the negative input to the ana-

log comparator. The ADC multiplexer is used to select this input, and consequently, the

ADC must be switched off to utilize this feature. If the Analog Comparator Multiplexer

Enable bit (ACME in SFIOR) is set and the ADC is switched off (ADEN in ADCSRA is

zero), MUX2..0 in ADMUX select the input pin to replace the negative input to the Ana-

log Comparator, as shown in Table 79. If ACME is cleared or ADEN is set, AIN1 is

applied to the negative input to the Analog Comparator.

Table 79. Analog Comparator Multiplexed Input

ACME ADEN MUX2..0 Analog Comparator Negative Input

0xxxxAIN1

11xxxAIN1

1 0 000 ADC0

1 0 001 ADC1

1 0 010 ADC2

1 0 011 ADC3

1 0 100 ADC4

1 0 101 ADC5

1 0 110 ADC6

1 0 111 ADC7

1 2 ... 189 190 191 192 193 194 195 196 197 198 199 ... 297 298

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