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ATTINY2313-20PU датащи(PDF) 86 Page - ATMEL Corporation |
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ATTINY2313-20PU датащи(HTML) 86 Page - ATMEL Corporation |
86 / 231 page 86 ATtiny2313/V 2543I–AVR–04/06 16-bit Timer/Counter1 The 16-bit Timer/Counter unit allows accurate program execution timing (event man- agement), wave generation, and signal timing measurement. The main features are: • True 16-bit Design (i.e., Allows 16-bit PWM) • Two independent Output Compare Units • Double Buffered Output Compare Registers • One Input Capture Unit • Input Capture Noise Canceler • Clear Timer on Compare Match (Auto Reload) • Glitch-free, Phase Correct Pulse Width Modulator (PWM) • Variable PWM Period • Frequency Generator • External Event Counter • Four independent interrupt Sources (TOV1, OCF1A, OCF1B, and ICF1) Overview Most register and bit references in this section are written in general form. A lower case “n” replaces the Timer/Counter number, and a lower case “x” replaces the Output Com- pare unit channel. However, when using the register or bit defines in a program, the precise form must be used, i.e., TCNT1 for accessing Timer/Counter1 counter value and so on. A simplified block diagram of the 16-bit Timer/Counter is shown in Figure 40. For the actual placement of I/O pins, refer to “Pinout ATtiny2313” on page 2. CPU accessible I/O Registers, including I/O bits and I/O pins, are shown in bold. The device-specific I/O Register and bit locations are listed in the “16-bit Timer/Counter Register Description” on page 108. Figure 40. 16-bit Timer/Counter Block Diagram (1) Note: 1. Refer to Figure 1 on page 2 for Timer/Counter1 pin placement and description. Clock Select Timer/Counter OCRnA OCRnB ICRn = = TCNTn Waveform Generation Waveform Generation OCnA OCnB Noise Canceler ICPn = Fixed TOP Values Edge Detector Control Logic = 0 TOP BOTTOM Count Clear Direction TOVn (Int.Req.) OCnA (Int.Req.) OCnB (Int.Req.) ICFn (Int.Req.) TCCRnA TCCRnB ( From Analog Comparator Ouput ) Tn Edge Detector ( From Prescaler ) clk Tn |
Аналогичный номер детали - ATTINY2313-20PU |
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Аналогичное описание - ATTINY2313-20PU |
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