ATMEGA32M1-AUR Atmel, ATMEGA32M1-AUR Datasheet - Page 101
![IC MPU AVR 32K 20MHZ 32TQFP](/photos/6/91/69154/313-32-tqfp_sml.jpg)
ATMEGA32M1-AUR
Manufacturer Part Number
ATMEGA32M1-AUR
Description
IC MPU AVR 32K 20MHZ 32TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32M1-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
CAN, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 11x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of I /o
-
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14.9.7
8209D–AVR–11/10
TIFR0 – Timer/Counter 0 Interrupt Flag Register
• 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, that is, when the OCF0B bit is set in the
Timer/Counter 0 Interrupt Flag Register”
• 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, that is, when the OCF0A bit is set in the
Timer/Counter 0 Interrupt Flag Register”
• 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, that is, when the TOV0 bit is set in the
ter 0 Interrupt Flag Register”
• Bits 7:3 – Res: Reserved Bits
These bits are reserved and will always read as zero.
• Bit 2 – OCF0B: Timer/Counter 0 Output Compare B Match Flag
The OCF0B bit is set when a Compare Match occurs between the Timer/Counter and the data in
“OCR0B – Output Compare Register B” on page
cuting the corresponding 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 Inter-
rupt Enable), and OCF0B are set, the Timer/Counter Compare Match Interrupt is executed.
• Bit 1 – OCF0A: Timer/Counter 0 Output Compare A Match Flag
The OCF0A bit is set when a Compare Match occurs between the Timer/Counter0 and the data
in
executing the corresponding 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 Inter-
rupt Enable), and OCF0A are set, the Timer/Counter0 Compare Match Interrupt is executed.
• Bit 0 – TOV0: Timer/Counter0 Overflow Flag
The bit TOV0 is set when an overflow occurs in Timer/Counter0. TOV0 is cleared by hardware
when executing the corresponding interrupt handling vector. Alternatively, TOV0 is cleared by
writing a logic one to the flag. When the SREG I-bit, TOIE0 (Timer/Counter0 Overflow Interrupt
Enable), and TOV0 are set, the Timer/Counter0 Overflow interrupt is executed.
The setting of this flag is dependent of the WGM02:0 bit setting. Refer to
Generation Mode Bit Description” on page
Bit
Read/Write
Initial Value
“OCR0A – Output Compare Register A” on page
R
7
–
0
R
6
–
0
.
R
5
–
0
.
.
98.
R
4
–
0
ATmega16M1/32M1/64M1
100. OCF0B is cleared by hardware when exe-
100. OCF0A is cleared by hardware when
R
3
–
0
OCF0B
R/W
2
0
OCF0A
R/W
1
0
Table
“TIFR0 – Timer/Coun-
TOV0
14-8,
R/W
0
0
“Waveform
“TIFR0 –
“TIFR0 –
TIFR0
101
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