ATtiny861 Automotive Atmel Corporation, ATtiny861 Automotive Datasheet - Page 73

• Manufacturer Part Number: ATtiny861 Automotive
• Manufacturer: Atmel Corporation

Specifications of ATtiny861 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: 1
• Twi (i2c): 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: 6
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

14. Timer/Counter0
14.1
14.2
14.2.1
7753F–AVR–01/11
Features
Overview
Registers
•
•
•
•
•
Timer/Counter0 is a general purpose 8-/16-bit Timer/Counter module, with two/one Output Com-
pare units and Input Capture feature.
The Timer/Counter0 general operation is described in 8-/16-bit mode. A simplified block diagram
of the 8-/16-bit Timer/Counter is shown in
to
I/O pins, are shown in bold. The device-specific I/O Register and bit locations are listed in the
“Register Description” on page
Figure 14-1. 8-/16-bit Timer/Counter Block Diagram
The Timer/Counter0 Low Byte Register (TCNT0L) and Output Compare Registers (OCR0A and
OCR0B) are 8-bit registers. Interrupt request (abbreviated to Int.Req. in
all visible in the Timer Interrupt Flag Register (TIFR). All interrupts are individually masked with
the Timer Interrupt Mask Register (TIMSK). TIFR and TIMSK are not shown in the figure.
In 16-bit mode the Timer/Counter consists one more 8-bit register, the Timer/Counter0 High
Byte Register (TCNT0H). Furthermore, there is only one Output Compare Unit in 16-bit mode as
the two Output Compare Registers, OCR0A and OCR0B, are combined to one 16-bit Output
Compare Register.
Clear Timer on Compare Match (Auto Reload)
Input Capture unit
Four Independent Interrupt Sources (TOV0, OCF0A, OCF0B, ICF0)
8-bit Mode with Two Independent Output Compare Units
16-bit Mode with One Independent Output Compare Unit
“Pinout ATtiny261/461/861” on page
TCCRnA
TCNTnH
OCRnB
=
Timer/Counter
85.
Direction
Count
ATtiny261/ATtiny461/ATtiny861
Clear
TCNTnL
TCCRnB
OCRnA
=
2. CPU accessible I/O Registers, including I/O bits and
Figure
Control Logic
14-1. For the actual placement of I/O pins, refer
TOP
Detector
Edge
clk
=
Tn
Canceler
Fixed TOP value
( From Prescaler )
Noise
Clock Select
Detector
Edge
TOVn (Int. Req.)
Comparator Ouput )
OCnA (Int. Req.)
OCnB (Int. Req.)
ICFn (Int. Req.)
( From Analog
Figure
ICPn
Tn
14-1) signals are
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