Datasheet

78
ATmega325/3250/645/6450
2570K–AVR–04/07
Alternate Functions of Port J Port J is only present in ATmega3250/6450. The alternate pin configuration is as
follows:
The alternate pin configuration is as follows:
• PCINT30 – Port J, Bit 6
PCINT30, Pin Change Interrupt Source 30: The PE30 pin can serve as an external inter-
rupt source.
• PCINT29 – Port J, Bit 5
PCINT29, Pin Change Interrupt Source 29: The PE29 pin can serve as an external inter-
rupt source.
• PCINT28 – Port J, Bit 4
PCINT28, Pin Change Interrupt Source 28: The PE28 pin can serve as an external inter-
rupt source.
• PCINT27 – Port J, Bit 3
PCINT27, Pin Change Interrupt Source 27: The PE27 pin can serve as an external inter-
rupt source.
• PCINT26 – Port J, Bit 2
PCINT26, Pin Change Interrupt Source 26: The PE26 pin can serve as an external inter-
rupt source.
• PCINT25 – Port J, Bit 1
PCINT25, Pin Change Interrupt Source 25: The PE25 pin can serve as an external inter-
rupt source.
• PCINT24 – Port J, Bit 0
PCINT24, Pin Change Interrupt Source 24: The PE24 pin can serve as an external inter-
rupt source.
Table 44 and Table 45 relates the alternate functions of Port J to the overriding signals
shown in Figure 27 on page 64.
Table 43. Port J Pins Alternate Functions
Port Pin Alternate Function
PJ6 PCINT30 (Pin Change Interrupt30)
PJ5 PCINT29 (Pin Change Interrupt29)
PJ4 PCINT28 (Pin Change Interrupt28)
PJ3 PCINT27 (Pin Change Interrupt27)
PJ2 PCINT26(Pin Change Interrupt26)
PJ1 PCINT25(Pin Change Interrupt25)
PJ0 PCINT24 (Pin Change Interrupt26)