ATmega128 datasheet(160/386 Pages) ATMEL

номер детали	ATmega128

подробное описание детали	8-bit Microcontroller with 128K Bytes In-System Programmable Flash

PDF	386 Pages

Scroll/Zoom	100%

производитель	ATMEL [ATMEL Corporation]

домашняя страница	http://www.atmel.com

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160 / 386 page

160

2467S–AVR–07/09

ATmega128

Timer/Counter

Interrupt Flag Register

– TIFR

• Bit 7 – OCF2: Output Compare Flag 2

The OCF2 bit is set (one) when a compare match occurs between the Timer/Counter2 and the

data in OCR2 – Output Compare Register2. OCF2 is cleared by hardware when executing the

corresponding interrupt handling vector. Alternatively, OCF2 is cleared by writing a logic one to

the flag. When the I-bit in SREG, OCIE2 (Timer/Counter2 Compare Match Interrupt Enable), and

OCF2 are set (one), the Timer/Counter2 Compare Match Interrupt is executed.

• Bit 6 – TOV2: Timer/Counter2 Overflow Flag

The bit TOV2 is set (one) when an overflow occurs in Timer/Counter2. TOV2 is cleared by hard-

ware when executing the corresponding interrupt handling vector. Alternatively, TOV2 is cleared

by writing a logic one to the flag. When the SREG I-bit, TOIE2 (Timer/Counter2 Overflow Inter-

rupt Enable), and TOV2 are set (one), the Timer/Counter2 Overflow interrupt is executed. In

PWM mode, this bit is set when Timer/Counter2 changes counting direction at $00.

Bit

765

4321

OCF2

TOV2

ICF1

OCF1A

OCF1B

TOV1

OCF0

TOV0

TIFR

Read/Write

R/W

Initial Value

000

0000

ATmega128 датащи(PDF) 160 Page - ATMEL Corporation