Datasheet

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
PUOE0000
PUOV0000
DDOE0000
DDOV0000
PVOE0000
PVOV0000
PTOE––––
DIEOE PCINT23 •
PCIE2
PCINT22 •
PCIE2
PCINT21 •
PCIE2
PCINT20 •
PCIE2
DIEOV1111
DI PCINT23
INPUT
PCINT22
INPUT
PCINT21
INPUT
PCINT20
INPUT
AIO ADC15 INPUT ADC14 INPUT ADC13 INPUT ADC12 INPUT