ATTINY261A-PU Atmel, ATTINY261A-PU Datasheet - Page 85
ATTINY261A-PU
Manufacturer Part Number
ATTINY261A-PU
Description
IC, MCU, 8BIT, 2K FLASH, 20PDIP
Manufacturer
Atmel
Datasheet
1.ATTINY461A-MU.pdf
(292 pages)
Specifications of ATTINY261A-PU
Controller Family/series
ATtiny
No. Of I/o's
16
Eeprom Memory Size
128Byte
Ram Memory Size
128Byte
Cpu Speed
20MHz
No.
RoHS Compliant
Core Size
8bit
Program Memory Size
2KB
Oscillator Type
External, Internal
Rohs Compliant
Yes
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11.10.8
8197B–AVR–01/10
TIFR – Timer/Counter0 Interrupt Flag Register
if a Compare Match in Timer/Counter0 occurs, i.e., when the OCF0A bit is set in the
Timer/Counter 0 Interrupt Flag Register – TIFR0.
• Bit 3 – OCIE0B: Timer/Counter Output Compare Match B Interrupt Enable
When the OCIE0B bit is written to one, and the I-bit in the Status Register is set, the
Timer/Counter Compare Match B interrupt is enabled. The corresponding interrupt is executed if
a Compare Match in Timer/Counter occurs, i.e., when the OCF0B bit is set in the Timer/Counter
Interrupt Flag Register – TIFR0.
• Bit 1 – TOIE0: Timer/Counter0 Overflow Interrupt Enable
When the TOIE0 bit is written to one, and the I-bit in the Status Register is set, the
Timer/Counter0 Overflow interrupt is enabled. The corresponding interrupt is executed if an
overflow in Timer/Counter0 occurs, i.e., when the TOV0 bit is set in the Timer/Counter 0 Inter-
rupt Flag Register – TIFR0.
• Bit 0 – TICIE0: Timer/Counter0, Input Capture Interrupt Enable
When this bit is written to one, and the I-flag in the Status Register is set (interrupts globally
enabled), the Timer/Counter1 Input Capture interrupt is enabled. The corresponding Interrupt
Vector
• Bit 4– OCF0A: Output Compare Flag 0 A
The OCF0A bit is set when a Compare Match occurs between the Timer/Counter0 and the data
in OCR0A – Output Compare Register0. OCF0A is cleared by hardware when executing the cor-
responding interrupt handling vector. Alternatively, OCF0A is cleared by writing a logic one to
the flag. When the I-bit in SREG, OCIE0A (Timer/Counter0 Compare Match Interrupt Enable),
and OCF0A are set, the Timer/Counter0 Compare Match Interrupt is executed.
The OCF0A is also set in 16-bit mode when a Compare Match occurs between the Timer/Coun-
ter and 16-bit data in OCR0B/A. The OCF0A is not set in Input Capture mode when the Output
Compare Register OCR0A is used as an Input Capture Register.
• Bit 3 – OCF0B: Output Compare Flag 0 B
The OCF0B bit is set when a Compare Match occurs between the Timer/Counter and the data in
OCR0B – Output Compare Register0 B. OCF0B is cleared by hardware when executing the cor-
responding interrupt handling vector. Alternatively, OCF0B is cleared by writing a logic one to
the flag. When the I-bit in SREG, OCIE0B (Timer/Counter Compare B Match Interrupt Enable),
and OCF0B are set, the Timer/Counter Compare Match Interrupt is executed.
The OCF0B is not set in 16-bit Output Compare mode when the Output Compare Register
OCR0B is used as the high byte of the 16-bit Output Compare Register or in 16-bit Input Cap-
ture mode when the Output Compare Register OCR0B is used as the high byte of the Input
Capture Register.
Bit
0x38 (0x58)
Read/Write
Initial Value
(See “Interrupts” on page
OCF1D
R/W
7
0
OCF1A
R/W
6
0
48.) is executed when the ICF0 flag, located in TIFR, is set.
OCF1B
R/W
5
0
OCF0A
R/W
4
0
OCF0B
R/W
3
0
TOV1
R/W
2
0
TOV0
R/W
1
0
ICF0
R
0
0
TIFR
85
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