ATMEGA8_08 Datasheet, PDF (116/308 Pages) ATMEL Corporation – 8-bit with 8K Bytes In-System Programmable Flash

Figure 55. Timer/Counter Timing Diagram, Clear Timer on Compare Match Mode, with Pres-
caler (f_{clk_I/O}/8)
clk_I/O
clk_Tn
(clk_I/O/8)
TCNTn
(CTC)
OCRn
TOP - 1
TOP
BOTTOM
TOP
BOTTOM + 1
OCFn
116 ATmega8(L)
2486T–AVR–05/08