ATtiny87 Automotive Atmel Corporation, ATtiny87 Automotive Datasheet - Page 119
ATtiny87 Automotive
Manufacturer Part Number
ATtiny87 Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.ATTINY167_AUTOMOTIVE.pdf
(10 pages)
3.ATTINY167_AUTOMOTIVE.pdf
(283 pages)
Specifications of ATtiny87 Automotive
Flash (kbytes)
8 Kbytes
Pin Count
20
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
8
Hardware Qtouch Acquisition
No
Max I/o Pins
16
Ext Interrupts
16
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
1
Uart
1
Lin
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 150
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
3
Input Capture Channels
1
Pwm Channels
9
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
- AT90CAN128_AUTOMOTIVE PDF datasheet
- ATTINY167_AUTOMOTIVE PDF datasheet #2
- ATTINY167_AUTOMOTIVE PDF datasheet #3
- Current page: 119 of 225
- Download datasheet (4Mb)
14.11.9
7701E–AVR–02/11
TIFR1 – Timer/Counter Interrupt Flag Register 1
• Bit 7,6,4,3 – Reserved Bit
This bit is reserved for future use. For ensuring compatibility with future devices, this bit must
be written to logical zero when the register is written.
• Bit 5– ICF1: Timer/Counter1, Input Capture Flag
This flag is set when a capture event occurs on the ICP1 pin. When the input capture register
(ICR1) is set by the WGM13:0 to be used as the top value, the ICF1 flag is set when the coun-
ter reaches the top value.
ICF1 is automatically cleared when the input capture interrupt vector is executed. Alterna-
tively, ICF1 can be cleared by writing a logical one to its bit location.
• Bit 2– OCF1B: Timer/Counter1, Output Compare B Match Flag
This flag is set in the timer clock cycle after the counter (TCNT1) value matches the output
compare register B (OCR1B).
Note that a forced output compare (1B) strobe will not set the OCF1B flag.
OCF1B is automatically cleared when the output compare match B interrupt vector is exe-
cuted. Alternatively, OCF1B can be cleared by writing a logical one to its bit location.
• Bit 1– OCF1A: Timer/Counter1, Output Compare A Match Flag
This flag is set in the timer clock cycle after the counter (TCNT1) value matches the output
compare register A (OCR1A).
Note that a forced output compare (1A) strobe will not set the OCF1A flag.
OCF1A is automatically cleared when the output compare match A interrupt vector is exe-
cuted. Alternatively, OCF1A can be cleared by writing a logical one to its bit location.
• Bit 0– TOV1: Timer/Counter1, Overflow Flag
The setting of this flag is dependent of the WGM13:0 bit settings. In normal and CTC modes,
the TOV1 flag is set when the timer overflows. See
behavior when using another WGM13:0 bit setting.
TOV1 is automatically cleared when the timer/counter 1 overflow interrupt vector is executed.
Alternatively, TOV1 can be cleared by writing a logical one to its bit location.
Bit
0x0B (0x2B)
Read/Write
Initial Value
–
R
7
0
–
R
6
0
Atmel ATtiny24/44/84 [Preliminary]
ICIF1
R/W
5
0
–
R
4
0
–
Table 14-4 on page 115
R
3
0
OCF1B
R/W
2
0
OCF1A
R/W
1
0
TOV1
for the TOV1 flag
R/W
0
0
TIFR1
119
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