Datasheet

79
7674F–AVR–09/09
ATmega164P/324P/644P
12.3.1 Alternate Functions of Port A
The Port A has an alternate function as the address low byte and data lines for the External
Memory Interface.
• ADC7:0/PCINT7:0 – Port A, Bit 7:0
ADC7:0, Analog to Digital Converter, Channels 7:0
.
PCINT7:0, Pin Change Interrupt source 7:0: The PA7:0 pins can serve as external interrupt
sources.
Table 12-3. Port A Pins Alternate Functions
Port Pin Alternate Function
PA7
ADC7 (ADC input channel 7)
PCINT7 (Pin Change Interrupt 7)
PA6
ADC6 (ADC input channel 6)
PCINT6 (Pin Change Interrupt 6)
PA5
ADC5 (ADC input channel 5)
PCINT5 (Pin Change Interrupt 5)
PA4
ADC4 (ADC input channel 4)
PCINT4 (Pin Change Interrupt 4)
PA3
ADC3 (ADC input channel 3)
PCINT3 (Pin Change Interrupt 3)
PA2
ADC2 (ADC input channel 2)
PCINT2 (Pin Change Interrupt 2)
PA1
ADC1 (ADC input channel 1)
PCINT1 (Pin Change Interrupt 1)
PA0
ADC0 (ADC input channel 0)
PCINT0 (Pin Change Interrupt 0)