ATtiny5 datasheet(70/168 Pages) ATMEL

부품명	ATtiny5

상세설명	8-bit Microcontroller with 512/1024 Bytes In-System Programmable Flash

PDF	168 Pages

Scroll/Zoom	100%

제조업체	ATMEL [ATMEL Corporation]

홈페이지	http://www.atmel.com

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70 / 168 page

8127C–AVR–10/09

ATtiny4/5/9/10

Figure 11-13 on page 70 shows the same timing data, but with the prescaler enabled.

Figure 11-13. Timer/Counter Timing Diagram, Setting of OCF0x, with Prescaler (fclk_I/O/8)

Figure 11-14 on page 70 shows the count sequence close to TOP in various modes. When

using phase and frequency correct PWM mode the OCR0x Register is updated at BOTTOM.

The timing diagrams will be the same, but TOP should be replaced by BOTTOM, TOP-1 by

BOTTOM+1 and so on. The same renaming applies for modes that set the TOV0 flag at

BOTTOM.

Figure 11-14. Timer/Counter Timing Diagram, no Prescaling

Figure 11-15 on page 71 shows the same timing data, but with the prescaler enabled.

OCFnx

OCRnx

TCNTn

OCRnx Value

OCRnx - 1

OCRnx

OCRnx + 1

OCRnx + 2

clk

I/O

clk

(clk

I/O/8)

TOVn (FPWM)

and ICFn (if used

as TOP)

OCRnx

(Update at TOP)

TCNTn

(CTC and FPWM)

TCNTn

(PC and PFC PWM)

TOP - 1

TOP

TOP - 1

TOP - 2

Old OCRnx Value

New OCRnx Value

TOP - 1

TOP

BOTTOM

BOTTOM + 1

clk

(clk

I/O/1)

clk

I/O

ATtiny5 데이터시트(PDF) 70 Page - ATMEL Corporation

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