ATtiny861 Automotive Atmel Corporation, ATtiny861 Automotive Datasheet - Page 69

• 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

12.4
12.4.1
12.4.2
12.4.3
12.4.4
12.4.5
12.4.6
12.4.7
7753F–AVR–01/11
Register Description
MCUCR – MCU Control Register
PORTA – Port A Data Register
DDRA – Port A Data Direction Register
PINA – Port A Input Pins Address
PORTB – Port B Data Register
DDRB – Port B Data Direction Register
PINB – Port B Input Pins Address
• Bit 6 – PUD: Pull-up Disable
When this bit is written to one, the pull-ups in the I/O ports are disabled even if the DDxn and
PORTxn Registers are configured to enable the pull-ups ({DDxn, PORTxn} = 0b01). See
figuring the Pin” on page 56
Bit
0x35 (0x55)
Read/Write
Initial Value
Bit
0x1B (0x3B)
Read/Write
Initial Value
Bit
0x1A (0x3A)
Read/Write
Initial Value
Bit
0x19 (0x39)
Read/Write
Initial Value
Bit
0x18 (0x38)
Read/Write
Initial Value
Bit
0x17 (0x37)
Read/Write
Initial Value
Bit
0x16 (0x36)
Read/Write
Initial Value
7
-
R
0
7
PORTA7
R/W
0
7
DDA7
R/W
0
7
PINA7
R/W
N/A
7
PORTB7
R/W
0
7
DDB7
R/W
0
7
PINB7
R/W
N/A
6
PUD
R/W
0
6
PINA6
R/W
N/A
6
PORTA6
R/W
0
6
DDA6
R/W
0
6
PORTB6
R/W
0
6
DDB6
R/W
0
6
PINB6
R/W
N/A
for more details about this feature.
5
PORTA5
R/W
0
5
DDA5
R/W
0
5
PINA5
R/W
N/A
5
DDB5
R/W
0
R/W
N/A
5
PORTB5
R/W
0
5
PINB5
5
SE
R/W
0
ATtiny261/ATtiny461/ATtiny861
4
PINA4
R/W
N/A
4
PORTA4
R/W
0
4
DDA4
R/W
0
4
PORTB4
R/W
0
4
DDB4
R/W
0
4
PINB4
R/W
N/A
4
SM1
R/W
0
R/W
N/A
R/W
R/W
3
PINA3
R/W
3
PORTA3
0
3
DDA3
0
3
PORTB3
R/W
0
3
DDB3
0
3
PINB3
R/W
N/A
3
SM0
R/W
0
2
PINA2
R/W
N/A
2
PORTA2
R/W
0
2
DDA2
R/W
0
2
DDB2
R/W
0
2
PINB2
R/W
N/A
2
PORTB2
R/W
0
2
-
R
0
1
PINA1
R/W
N/A
1
PORTA1
R/W
0
1
DDA1
R/W
0
1
PORTB1
R/W
0
1
DDB1
R/W
0
1
PINB1
R/W
N/A
1
ISC01
R
0
0
PINA0
R/W
N/A
0
PORTA0
R/W
0
0
DDA0
R/W
0
0
DDB0
R/W
0
0
PINB0
R/W
N/A
0
PORTB0
R/W
0
0
ISC00
R
0
PINA
MCUCR
PORTA
DDRA
DDRB
PINB
PORTB
“Con-
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