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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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ATmega169P 데이터시트(PDF) 211 Page - ATMEL Corporation |
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ATmega169P 데이터시트(HTML) 211 Page - ATMEL Corporation |
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211 / 393 page  211 8018N–AVR–08/09 ATmega169P 21. AC - Analog Comparator The Analog Comparator compares the input values on the positive pin AIN0 and negative pin AIN1. When the voltage on the positive pin AIN0 is higher than the voltage on the negative pin AIN1, the Analog Comparator output, ACO, is set. The comparator’s output can be set to trigger the Timer/Counter1 Input Capture function. In addition, the comparator can trigger a separate interrupt, exclusive to the Analog Comparator. The user can select Interrupt triggering on com- parator output rise, fall or toggle. A block diagram of the comparator and its surrounding logic is shown in Figure 21-1 . The Power Reduction ADC bit, PRADC, in ”PRR – Power Reduction Register” on page 45 must be disabled by writing a logical zero to be able to use the ADC input MUX. Figure 21-1. Analog Comparator Block Diagram (2) Notes: 1. See Table 21-1 on page 212. 2. Refer to Figure 1-1 on page 2 and Table 13-5 on page 74 for Analog Comparator pin placement. ACBG BANDGAP REFERENCE ADC MULTIPLEXER OUTPUT ACME ADEN (1) |
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