Datasheet

83
ATmega329/3210/649/6410
2552I–AVR–04/07
Alternate Functions of Port J Port J is only present in ATmega3290/6490. The alternate pin configuration is as
follows:
The alternate pin configuration is as follows:
• PCINT30/SEG – Port J, Bit 6
PCINT30, Pin Change Interrupt Source 30: The PE30 pin can serve as an external inter-
rupt source.
SEG, LCD front plane 27.
• PCINT29/SEG – Port J, Bit 5
PCINT29, Pin Change Interrupt Source 29: The PE29 pin can serve as an external inter-
rupt source.
SEG, LCD front plane28.
Table 50. Overriding Signals for Alternate Functions in PH3:0
Signal
Name
PH3/PCINT19/
SEG7
PH2/PCINT18/
SEG8
PH1/PCINT17/
SEG9
PH0/PCINT16/
SEG10
PUOE LCDEN LCDEN LCDEN LCDEN
PUOV0000
DDOE LCDEN LCDEN LCDEN LCDEN
DDOV 0 0 0 0
PVOE0000
PVOV0000
PTOE––––
DIEOE PCINT19 •
PCIE0 •LCDEN •
LCDPM
PCINT18 •
PCIE0 •LCDEN •
LCDPM
PCINT17 •
PCIE0 •LCDEN •
LCDPM
PCINT16 •
PCIE0 •LCDEN •
LCDPM
DIEOV
DI PCINT19 INPUT PCINT18 INPUT PCINT17 INPUT PCINT16 INPUT
AIO LCDSEG LCDSEG LCDSEG LCDSEG
Table 51. Port J Pins Alternate Functions
Port Pin Alternate Function
PJ6 PCINT30/SEG (Pin Change Interrupt30 or LCD Front Plane 27)
PJ5 PCINT29/SEG (Pin Change Interrupt29 or LCD Front Plane 28)
PJ4 PCINT28/SEG (Pin Change Interrupt28 or LCD Front Plane 29)
PJ3 PCINT27/SEG (Pin Change Interrupt27 or LCD Front Plane 30)
PJ2 PCINT26/SEG(Pin Change Interrupt26 or LCD Front Plane 31)
PJ1 PCINT25/SEG(Pin Change Interrupt25 or LCD Front Plane 34)
PJ0 PCINT24/SEG (Pin Change Interrupt26 or LCD Front Plane 35)