ATMEGA64L-8MI View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATMEGA64L-8MI

8-bit AVR® Microcontroller with 64K Bytes In-System Programmable Flash

Atmel Corporation 

2490G–AVR–03/04

ATmega64(L)

Figure 42. Timer/Counter Timing Diagram, with Prescaler (fclk_I/O/8)

clkI/O

clkTn

(clkI/O/8)

TCNTn

MAX - 1

MAX

BOTTOM

TOVn

BOTTOM + 1

Figure 43 shows the setting of OCF0 in all modes except CTC mode.

Figure 43. Timer/Counter Timing Diagram, Setting of OCF0, with Prescaler (fclk_I/O/8)

clkI/O

clkTn

(clkI/O/8)

TCNTn

OCRn - 1

OCRn

OCRn + 1

OCRn + 2

OCRn

OCRn Value

OCFn

Figure 44 shows the setting of OCF0 and the clearing of TCNT0 in CTC mode.

Figure 44. Timer/Counter Timing Diagram, Clear Timer on Compare Match Mode, with

Prescaler (fclk_I/O/8)

clkI/O

clkTn

(clkI/O/8)

TCNTn

(CTC)

OCRn

TOP - 1

TOP

TOP

BOTTOM

BOTTOM + 1

OCFn

101

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