Alternate Functions of Port K The Port K alternate pin configuration is as follows:
Table 63. Port K Pins Alternate Functions
Port Pin
PK7
Alternate Function
ADC15/PCINT23 (ADC Input Channel 15 or Pin Change Interrupt 23)
ADC14/PCINT22 (ADC Input Channel 14 or Pin Change Interrupt 22)
ADC13/PCINT21 (ADC Input Channel 13 or Pin Change Interrupt 21)
ADC12/PCINT20 (ADC Input Channel 12 or Pin Change Interrupt 20)
ADC11/PCINT19 (ADC Input Channel 11 or Pin Change Interrupt 19)
ADC10/PCINT18 (ADC Input Channel 10 or Pin Change Interrupt 18)
ADC9/PCINT17 (ADC Input Channel 9 or Pin Change Interrupt 17)
ADC8 /PCINT16 (ADC Input Channel 8 or Pin Change Interrupt 16)
PK6
PK5
PK4
PK3
PK2
PK1
PK0
• 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 64. Overriding Signals for Alternate Functions in PK7..PK4
PK7/ADC15/
PCINT23
PK6/ADC14/
PCINT22
PK5/ADC13/
PCINT21
PK4/ADC12/
PCINT20
Signal Name
PUOE
0
0
0
0
0
0
–
0
0
0
0
0
0
–
0
0
0
0
0
0
–
0
0
0
0
0
0
–
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
PCINT23 •
PCIE2
PCINT22 •
PCIE2
PCINT21 •
PCIE2
PCINT20 •
PCIE2
DIEOV
DI
1
1
1
1
PCINT23
INPUT
PCINT22
INPUT
PCINT21
INPUT
PCINT20
INPUT
AIO
ADC15 INPUT
ADC14 INPUT
ADC13 INPUT
ADC12 INPUT
108
ATmega640/1280/1281/2560/2561
2549A–AVR–03/05
ATMEL [ ATMEL ]
