ATMEGA8_14 Datasheet, PDF (113/331 Pages) ATMEL Corporation – High-performance, Low-power Atmel

ATmega8(L)
Figure 53 shows the same timing data, but with the prescaler enabled.
Figure 53. Timer/Counter Timing Diagram, with Prescaler (f_{clk_I/O}/8)
clk_I/O
clk_Tn
(clk_I/O/8)
TCNTn
MAX - 1
MAX
BOTTOM
TOVn
BOTTOM + 1
Figure 54 shows the setting of OCF2 in all modes except CTC mode.
Figure 54. Timer/Counter Timing Diagram, Setting of OCF2, with Prescaler (f_{clk_I/O}/8)
clk_I/O
clk_Tn
(clk_I/O/8)
TCNTn
OCRn - 1
OCRn
OCRn + 1
OCRn + 2
OCRn
OCRn Value
OCFn
2486AA–AVR–02/2013
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