Datasheet

76
7728G–AVR–06/10
ATtiny87/ATtiny167
9.3.3 Alternate Functions of Port A
The Port A pins with alternate functions are shown in Table 9-3.
Table 9-3. Port A Pins Alternate Functions
Port Pin Alternate Function
PA7
PCINT7 (Pin Change Interrupt 7)
ADC7 (ADC Input Channel 7)
AIN1 (Analog Comparator Positive Input)
XREF (Internal Voltage Reference Output)
AREF (External Voltage Reference Input)
PA6
PCINT6 (Pin Change Interrupt 6)
ADC6 (ADC Input Channel 6)
AIN0 (Analog Comparator Negative Input)
SS
(SPI Slave Select Input)
PA5
PCINT5 (Pin Change Interrupt 5)
ADC5 (ADC Input Channel 5)
T1 (Timer/Counter1 Clock Input)
USCK (Three-wire Mode USI Alternate
Clock Input)
SCL (Two-wire Mode USI Alternate
Clock Input)
SCK (SPI Master Clock)
PA4
PCINT4 (Pin Change Interrupt 4)
ADC4 (ADC Input Channel 4)
ICP1 (Timer/Counter1 Input Capture Trigger)
DI (Three-wire Mode USI Alternate
Data Input)
SDA (Two-wire Mode USI Alternate
Data Input / Output)
MOSI (SPI Master Output / Slave Input)
PA3
PCINT3 (Pin Change Interrupt 3)
ADC3 (ADC Input Channel 3)
ISRC (Current Source Pin)
INT1 (External Interrupt1 Input)
PA2
PCINT2 (Pin Change Interrupt 2)
ADC2 (ADC Input Channel 2)
OC0A (Output Compare and PWM Output A for Timer/Counter0)
DO (Three-wire Mode USI Alternate
Data Output)
MISO (SPI Master Input / Slave Output)
PA1
PCINT1 (Pin Change Interrupt 1)
ADC1 (ADC Input Channel 1)
TXD (UART Transmit Pin)
TXLIN (LIN Transmit Pin)
PA0
PCINT0 (Pin Change Interrupt 0)
ADC0 (ADC Input Channel 0)
RXD (UART Receive Pin)
RXLIN (LIN Receive Pin)