Rainbow-electronics ATmega64M1 Manuel d'utilisateur télécharger pdf (Page 96)

100

101

8209A–AVR–08/09

ATmega16M1/32M1/64M1

Figure 15-9. Timer/Counter Timing Diagram, with Prescaler (f

clk_I/O

/8)

Figure 15-10 shows the setting of OCF0B in all modes and OCF0A in all modes except CTC

mode and PWM mode, where OCR0A is TOP.

Figure 15-10. Timer/Counter Timing Diagram, Setting of OCF0x, with Prescaler (f

clk_I/O

/8)

Figure 15-11 shows the setting of OCF0A and the clearing of TCNT0 in CTC mode and fast

PWM mode where OCR0A is TOP.

Figure 15-11. Timer/Counter Timing Diagram, Clear Timer on Compare Match mode, with Pres-

caler (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 ... 91 92 93 94 95 96 97 98 99 100 101 ... 342 343

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