ATmega1284P datasheet(78/380 Pages) ATMEL

Part #	ATmega1284P

Description	8-bit Microcontroller with 128K Bytes In-System Programmable Flash

PDF	380 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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78 / 380 page

8059D–AVR–11/09

ATmega1284P

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)

ATmega1284P Datasheet(PDF) 78 Page - ATMEL Corporation