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参数资料
| 型号： | Q80C32E-20:D |
| 厂商： | ATMEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 20 MHz, MICROCONTROLLER, CQFP44 |
| 封装： | CERAMIC, QFP-44 |
| 文件页数： | 98/109页 |
| 文件大小： | 10824K |
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74
ATtiny20 [DATASHEET]
8235E–AVR–03/2013
11.9.4 OCR0A – Output Compare Register A
The Output Compare Register A contains an 8-bit value that is continuously compared with the counter value (TCNT0). A
match can be used to generate an Output Compare interrupt, or to generate a waveform output on the OC0A pin.
11.9.5 OCR0B – Output Compare Register B
The Output Compare Register B contains an 8-bit value that is continuously compared with the counter value (TCNT0). A
match can be used to generate an Output Compare interrupt, or to generate a waveform output on the OC0B pin.
11.9.6 TIMSK – Timer/Counter Interrupt Mask Register
Bit 6 – Res: Reserved Bit
This bit is reserved and will always read as zero.
Bit 2 – 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 – TIFR.
Bit 1 – OCIE0A: Timer/Counter0 Output Compare Match A Interrupt Enable
When the OCIE0A bit is written to one, and the I-bit in the Status Register is set, the Timer/Counter0 Compare Match A
interrupt is enabled. The corresponding interrupt is executed if a Compare Match in Timer/Counter0 occurs, i.e., when
the OCF0A bit is set in the Timer/Counter Interrupt Flag Register – TIFR.
Bit 0 – 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 Interrupt Flag Register – TIFR.
Bit
76543210
OCR0A[7:0]
OCR0A
Read/Write
R/W
Initial Value
00000000
Bit
76543210
OCR0B[7:0]
OCR0B
Read/Write
R/W
Initial Value
00000000
Bit
7654
3
2
1
0
ICIE1
–
OCIE1B
OCIE1A
TOIE1
OCIE0B
OCIE0A
TOIE0
TIMSK
Read/Write
R/W
R
R/W
Initial Value
0000
0
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