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Os motores de busca de Datasheet de Componentes eletrônicos |
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ATTINY2313-20PU Folha de dados(PDF) 80 Page - ATMEL Corporation |
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ATTINY2313-20PU Folha de dados(HTML) 80 Page - ATMEL Corporation |
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80 / 231 page  80 ATtiny2313/V 2543I–AVR–04/06 Timer/Counter Control Register B – TCCR0B • Bit 7 – FOC0A: Force Output Compare A The FOC0A bit is only active when the WGM bits specify a non-PWM mode. However, for ensuring compatibility with future devices, this bit must be set to zero when TCCR0B is written when operating in PWM mode. When writing a logical one to the FOC0A bit, an immediate Compare Match is forced on the Waveform Generation unit. The OC0A output is changed according to its COM0A1:0 bits setting. Note that the FOC0A bit is implemented as a strobe. Therefore it is the value present in the COM0A1:0 bits that determines the effect of the forced compare. A FOC0A strobe will not generate any interrupt, nor will it clear the timer in CTC mode using OCR0A as TOP. The FOC0A bit is always read as zero. • Bit 6 – FOC0B: Force Output Compare B The FOC0B bit is only active when the WGM bits specify a non-PWM mode. However, for ensuring compatibility with future devices, this bit must be set to zero when TCCR0B is written when operating in PWM mode. When writing a logical one to the FOC0B bit, an immediate Compare Match is forced on the Waveform Generation unit. The OC0B output is changed according to its COM0B1:0 bits setting. Note that the FOC0B bit is implemented as a strobe. Therefore it is the value present in the COM0B1:0 bits that determines the effect of the forced compare. A FOC0B strobe will not generate any interrupt, nor will it clear the timer in CTC mode using OCR0B as TOP. The FOC0B bit is always read as zero. • Bits 5:4 – Res: Reserved Bits These bits are reserved bits in the ATtiny2313 and will always read as zero. • Bit 3 – WGM02: Waveform Generation Mode See the description in the “Timer/Counter Control Register A – TCCR0A” on page 77. • Bits 2:0 – CS02:0: Clock Select The three Clock Select bits select the clock source to be used by the Timer/Counter. See Table 41 on page 81. Bit 7 6 5 4 3 2 1 0 FOC0A FOC0B – – WGM02 CS02 CS01 CS00 TCCR0B Read/Write W W R R R/W R/W R/W R/W Initial Value 0 0 0 0 0 0 0 0 |
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Descrição semelhante - ATTINY2313-20PU |
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