ATmega3290P datasheet(85/385 Pages) ATMEL

85 / 385 page

8021E–AVR–07/09

ATmega329P/3290P

13.3.9

Alternate Functions of Port J

Port J is only present in ATmega3290P. 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.

Table 13-26. Overriding Signals for Alternate Functions in PH3:0

Signal Name

PH3/PCINT19/

SEG7

PH2/PCINT18/

SEG8

PH1/PCINT17/

SEG9

PH0/PCINT16/

SEG10

PUOE

LCDEN

PUOV

0000

DDOE

LCDEN

DDOV

0000

PVOE

0000

PVOV

0000

PTOE

––––

DIEOE

PCINT19 • PCIE0

•LCDEN • LCDPM

PCINT18 • PCIE0

•LCDEN • LCDPM

PCINT17 • PCIE0

•LCDEN • LCDPM

PCINT16 • PCIE0

•LCDEN • LCDPM

DIEOV

PCINT19 INPUT

PCINT18 INPUT

PCINT17 INPUT

PCINT16 INPUT

AIO

LCDSEG

Table 13-27. 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)

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