Datasheet

88
ATmega169A/PA/329A/PA/649A/P/3290A/PA/6490A/P [DATASHEET]
8284E–AVR–02/2013
14.3.9 Alternate Functions of Port J
Port J is only present in ATmega3290A/3290PA/6490A/6490P. 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 interrupt 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 interrupt source.
SEG, LCD front plane28.
• PCINT28/SEG – Port J, Bit 4
PCINT28, Pin Change Interrupt Source 28: The PE28 pin can serve as an external interrupt source.
SEG, LCD front plane 29.
Table 14-26. Overriding signals for alternate functions in PH3:0 (Atmel
ATmega329A/329PA/3290A/3290PA/649A/649P/6490A/6490P).
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 14-27. 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)