ATMEGA640 datasheet(111/449 Pages) ATMEL

111 / 449 page

111

ATmega640/1280/1281/2560/2561

2549K–AVR–01/07

Alternate Functions of Port K

The Port K alternate pin configuration is as follows:

• ADC15:8/PCINT23:16 – Port K, Bit 7:0

ADC15:8, Analog to Digital Converter, Channel 15 - 8.

PCINT23:16, Pin Change Interrupt Source 23:16. The PK7:0 pins can serve as External

Interrupt Sources.

Table 66. Port K Pins Alternate Functions

Port Pin

Alternate Function

PK7

ADC15/PCINT23 (ADC Input Channel 15 or Pin Change Interrupt 23)

PK6

ADC14/PCINT22 (ADC Input Channel 14 or Pin Change Interrupt 22)

PK5

ADC13/PCINT21 (ADC Input Channel 13 or Pin Change Interrupt 21)

PK4

ADC12/PCINT20 (ADC Input Channel 12 or Pin Change Interrupt 20)

PK3

ADC11/PCINT19 (ADC Input Channel 11 or Pin Change Interrupt 19)

PK2

ADC10/PCINT18 (ADC Input Channel 10 or Pin Change Interrupt 18)

PK1

ADC9/PCINT17 (ADC Input Channel 9 or Pin Change Interrupt 17)

PK0

ADC8 /PCINT16 (ADC Input Channel 8 or Pin Change Interrupt 16)

Table 67. Overriding Signals for Alternate Functions in PK7:PK4

Signal Name

PK7/ADC15/

PCINT23

PK6/ADC14/

PCINT22

PK5/ADC13/

PCINT21

PK4/ADC12/

PCINT20

PUOE

0000

PUOV

0000

DDOE

0000

DDOV

0000

PVOE

0000

PVOV

0000

PTOE

––––

DIEOE

PCINT23 •

PCIE2

PCINT22 •

PCIE2

PCINT21 •

PCIE2

PCINT20 •

PCIE2

DIEOV

1111

PCINT23

INPUT

PCINT22

INPUT

PCINT21

INPUT

PCINT20

INPUT

AIO

ADC15 INPUT

ADC14 INPUT

ADC13 INPUT

ADC12 INPUT

ATMEGA640 Datasheet(PDF) 111 Page - ATMEL Corporation

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