Datasheet

86
ATmega169A/PA/329A/PA/649A/P/3290A/PA/6490A/P [DATASHEET]
8284E–AVR–02/2013
14.3.8 Alternate Functions of Port H
Port H is only present in ATmega3290A/3290PA/6490A/6490P. The alternate pin configuration is as follows:
The alternate pin configuration is as follows:
• PCINT23/SEG – Port H, Bit 7
PCINT23, Pin Change Interrupt Source 23: The PH7 pin can serve as an external interrupt source.
SEG, LCD front plane 36.
• PCINT22/SEG – Port H, Bit 6
PCINT22, Pin Change Interrupt Source 22: The PH6 pin can serve as an external interrupt source.
SEG, LCD front plane 37.
Table 14-23. Overriding signals for alternate functions in PG3:0.
Signal Name
PG3/T1/
SEG(33/24) PG2/SEG(4/4) PG1/SEG(17/13) PG0/SEG(1814)
PUOE LCDEN LCDEN LCDEN LCDEN
PUOV0000
DDOE LCDEN LCDEN LCDEN LCDEN
DDOV0000
PVOE0000
PVOV0000
PTOE––––
DIEOE LCDEN • (LCDPM) LCDEN LCDEN • (LCDPM) LCDEN • (LCDPM)
DIEOV0000
DIT1 INPUT–––
AIO
(1)
1. Applies to Atmel ATmega169A/169PA.
SEG24 SEG4 SEG13 SEG14
AIO
(2)
2. Applies to Atmel ATmega329A/329PA/3290A/3290PA/649A/649P/6490A/6490P.
LCDSEG LCDSEG LCDSEG LCDSEG
Table 14-24. Port H pins alternate functions.
Port pin Alternate function
PH7 PCINT23/SEG (Pin Change Interrupt23 or LCD Front Plane 36)
PH6 PCINT22/SEG (Pin Change Interrupt22 or LCD Front Plane 37)
PH5 PCINT21/SEG (Pin Change Interrupt21 or LCD Front Plane 38)
PH4 PCINT20/SEG (Pin Change Interrupt20 or LCD Front Plane 39)
PH3 PCINT19/SEG (Pin Change Interrupt19 or LCD Front Plane 7)
PH2 PCINT18/SEG (Pin Change Interrupt18 or LCD Front Plane 8)
PH1 PCINT17/SEG (Pin Change Interrupt17 or LCD Front Plane 9)
PH0 PCINT16/SEG (Pin Change Interrupt16 or LCD Front Plane 10)