ATmega16M1 datasheet(128/365 Pages) ATMEL

Part #	ATmega16M1

Description	8-bit Microcontroller with 16K/32K/64K Bytes In-System Programmable Flash

PDF	365 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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128 / 365 page

128

7647F–AVR–04/09

ATmega16/32/64/M1/C1

13.9

Timer/Counter Timing Diagrams

The Timer/Counter is a synchronous design and the timer clock (clk

Tn) is therefore shown as a

clock enable signal in the following figures. The figures include information on when Interrupt

Flags are set, and when the OCRnx Register is updated with the OCRnx buffer value (only for

modes utilizing double buffering). Figure 13-10 shows a timing diagram for the setting of OCFnx.

Figure 13-10. Timer/Counter Timing Diagram, Setting of OCFnx, no Prescaling

Figure 13-11 shows the same timing data, but with the prescaler enabled.

Figure 13-11. Timer/Counter Timing Diagram, Setting of OCFnx, with Prescaler (f

clk_I/O/8)

clk

(clk

I/O/1)

OCFnx

clk

I/O

OCRnx

TCNTn

OCRnx Value

OCRnx - 1

OCRnx

OCRnx + 1

OCRnx + 2

OCFnx

OCRnx

TCNTn

OCRnx Value

OCRnx - 1

OCRnx

OCRnx + 1

OCRnx + 2

clk

I/O

clk

(clk

I/O/8)

ATmega16M1 Datasheet(PDF) 128 Page - ATMEL Corporation