Datasheet

Figure 21-9. Timer/Counter Timing Diagram, with Prescaler (f
clk_I/O
/8)
TOVn
TCNTn MAX - 1 MAX BOTTOM BOTTOM + 1
clk
I/O
clk
Tn
(clk
I/O
/8)
The following figure shows the setting of OCF2A in all modes except CTC mode.
Figure 21-10. Timer/Counter Timing Diagram, Setting of OCF2A, with Prescaler (f
clk_I/O
/8)
OCFnx
OCRnx
TCNTn
OCRnx Value
OCRnx - 1 OCRnx OCRnx + 1 OCRnx + 2
clk
I/O
clk
Tn
(clk
I/O
/8)
The following figure shows the setting of OCF2A and the clearing of TCNT2 in CTC mode.
Figure 21-11. Timer/Counter Timing Diagram, Clear Timer on Compare Match mode, with
Prescaler (f
clk_I/O
/8)
OCFnx
OCRnx
TCNTn
(CTC)
TOP
TOP - 1 TOP BOTTOM BOTTOM + 1
clk
I/O
clk
Tn
(clk
I/O
/8)
21.9 Asynchronous Operation of Timer/Counter2
When TC2 operates asynchronously, some considerations must be taken:
ATmega328PB
TC2 - 8-bit Timer/Counter2 with PWM and Asynchrono...
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Datasheet Complete
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