ATtiny861 Automotive Atmel Corporation, ATtiny861 Automotive Datasheet - Page 117

• 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

7753F–AVR–01/11
Note that the Data Direction Register (DDR) bit corresponding to the OC1B pin must be set in
order to enable the output driver.
The function of the COM1B1:0 bits depends on the PWM1B and WGM10 bit settings.
16-11
(non-PWM).
Table 16-11. Compare Output Mode, Normal Mode (non-PWM)
Table 16-12
Fast PWM Mode.
Table 16-12. Compare Output Mode, Fast PWM Mode
Table 16-13
Phase and Frequency Correct PWM Mode.
Table 16-13. Compare Output Mode, Phase and Frequency Correct PWM Mode
• Bit 3 - FOC1A: Force Output Compare Match 1A
The FOC1A bit is only active when the PWM1A bit specify a non-PWM mode.
Writing a logical one to this bit forces a change in the Waveform Output (OCW1A) and the Out-
put Compare pin (OC1A) according to the values already set in COM1A1 and COM1A0. If
COM1A1 and COM1A0 written in the same cycle as FOC1A, the new settings will be used. The
Force Output Compare bit can be used to change the output pin value regardless of the timer
value.
COM1B1..0
COM1B1..0
COM1B1..0
00
01
10
11
00
01
10
11
00
01
10
11
shows the COM1B1:0 bit functionality when the PWM1B bit is set to Normal Mode
shows the COM1B1:0 bit functionality when the PWM1B and WGM10 bits are set to
shows the COM1B1:0 bit functionality when the PWM1B and WGM10 bits are set to
OCW1B Behavior
Normal port operation.
Toggle on Compare Match.
Clear on Compare Match.
Set on Compare Match.
OCW1B Behavior
Normal port operation.
Cleared on Compare Match.
Set when TCNT1 = 0x000.
Cleared on Compare Match.
Set when TCNT1 = 0x000.
Set on Compare Match.
Cleared when TCNT1 = 0x000.
OCW1B Behavior
Normal port operation.
Cleared on Compare Match when up-counting.
Set on Compare Match when down-counting.
Cleared on Compare Match when up-counting.
Set on Compare Match when down-counting.
Set on Compare Match when up-counting.
Cleared on Compare Match when down-counting.
ATtiny261/ATtiny461/ATtiny861
Disconnected
Disconnected
Disconnected
Connected
Connected
Connected
Connected
Connected
Connected
Connected
Connected
Connected
OC1B Pin
OC1B Pin
OC1B Pin
Disconnected
Disconnected
Disconnected
Disconnected
Disconnected
Disconnected
Disconnected
Disconnected
Disconnected
Disconnected
Connected
Connected
OC1B Pin
OC1B Pin
OC1B Pin
Table
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