Atmel ATmega128

156
2467S–AVR–07/09
ATmega128
Figure 70. Timer/Counter Timing Diagram, Setting of OCF2, with Prescaler (f
clk_I/O
/8)
Figure 71 shows the setting of OCF2 and the clearing of TCNT2 in CTC mode.
Figure 71. Timer/Counter Timing Diagram, Clear Timer on Compare Match Mode, with Pres-
caler (f
clk_I/O
/8)
OCFn
OCRn
TCNTn
OCRn Value
OCRn - 1 OCRn OCRn + 1 OCRn + 2
clk
I/O
clk
Tn
(clk
I/O
/8)
OCFn
OCRn
TCNTn
(CTC)
TOP
TOP - 1 TOP BOTTOM BOTTOM + 1
clk
I/O
clk
Tn
(clk
I/O
/8)