Rainbow-electronics ATtiny2313 Manuel d'utilisateur télécharger pdf (Page 74)

ATtiny2313

2543A–AVR–08/03

Figure 34. Timer/Counter Timing Diagram, with Prescaler (f

clk_I/O

/8)

Figure 35 shows the setting of OCF0B in all modes and OCF0A in all modes except

CTC mode and PWM mode, where OCR0A is TOP.

Figure 35. Timer/Counter Timing Diagram, Setting of OCF0x, with Prescaler (f

clk_I/O

/8)

Figure 36 shows the setting of OCF0A and the clearing of TCNT0 in CTC mode and fast

PWM mode where OCR0A is TOP.

Figure 36. Timer/Counter Timing Diagram, Clear Timer on Compare Match mode, with

Prescaler (f

clk_I/O

/8)

TOVn

TCNTn

MAX - 1 MAX BOTTOM BOTTOM + 1

clk

I/O

clk

(clk

I/O

/8)

OCFnx

OCRnx

TCNTn

OCRnx Value

OCRnx - 1 OCRnx OCRnx + 1 OCRnx + 2

clk

I/O

clk

(clk

I/O

/8)

OCFnx

OCRnx

TCNTn

(CTC)

TOP

TOP - 1 TOP BOTTOM BOTTOM + 1

clk

I/O

clk

(clk

I/O

/8)

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 210 211

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Rainbow-electronics ATtiny2313 Manuel d'utilisateur Page 74

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