ATmega640/1280/1281/2560/2561
Table 13-27. Port K Pins Alternate Functions
Port Pin
PK4
Alternate Function
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)
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 Inter-
rupt Sources.
Table 13-28. Overriding Signals for Alternate Functions in PK7:PK4
PK7/ADC15/
PCINT23
PK6/ADC14/
PCINT22
PK5/ADC13/
PCINT21
PK4/ADC12/
PCINT20
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
–
–
–
–
PCINT23 • PCIE2
1
PCINT22 • PCIE2
1
PCINT21 • PCIE2
1
PCINT20 • PCIE2
1
PCINT23 INPUT
ADC15 INPUT
PCINT22 INPUT
ADC14 INPUT
PCINT21 INPUT
ADC13 INPUT
PCINT20 INPUT
ADC12 INPUT
AIO
97
2549L–AVR–08/07
ATMEL [ ATMEL ]
