Datasheet

Note: 1. A special case occurs when OCR2 equals TOP and COM21 is set. In this case, the Compare

Match is ignored, but the set or clear is done at TOP. See Phase Correct PWM Mode for more details.

Bit 3 – WGM21 Waveform Generation Mode [n=0:1]

Refer to WGM20.

Bits 2:0 – CS2n[2:0] Clock Select [n = 2:0]

The three Clock Select bits select the clock source to be used by the Timer/Counter.

Table 22-6. Clock Select Bit Description

CS22 CS21 CS20 Description

0 0 0 No clock source (Timer/Counter stopped).

0 0 1 clk

I/O

/1 (No prescaling)

0 1 0 clk

I/O

/8 (From prescaler)

0 1 1 clk

I/O

/32 (From prescaler)

1 0 0 clkI/O/64 (From prescaler)

1 0 1 clk

I/O

/128 (From prescaler)

1 1 0 clk

I/O

/256 (From prescaler)

1 1 1 clk

I/O

/1024 (From prescaler)

AVR 8-Bit Microcontroller

8-bit Timer/Counter2 with PWM and Asynchronous Ope...

Datasheet Complete

40001974A-page 166