ATMEGA644PV ATMEL [ATMEL Corporation], ATMEGA644PV Datasheet - Page 89

• Manufacturer Part Number: ATMEGA644PV
• Description: 8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

8011D–AVR–02/07
Table 12-14. Overriding Signals for Alternate Functions in PD3:PD0
Note:
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
1. When enabled, the 2-wire Serial Interface enables Slew-Rate controls on the output pins PD0
and PD1. This is not shown in this table. In addition, spike filters are connected between the
AIO outputs shown in the port figure and the digital logic of the TWI module.
PD3/INT1/TXD1/
PCINT27
0
0
0
0
0
0
INT1 ENABLE
PCINT27 • PCIE3
1
INT1 INPUT
PCINT27 INPUT
–
PD2/INT0/RXD1/
PCINT26
PORTD2 • PUD
RXEN1
0
0
0
INT2 ENABLE
PCINT26 • PCIE3
1
INT0 INPUT
PCINT27 INPUT
–
ATmega164P/324P/644P
PD1/TXD0/
PCINT25
TXEN
PORTD1 • PUD
TXEN
SDA_OUT
TWEN
0
INT1 ENABLE
PCINT25 • PCIE3
1
TXD
PCINT25 INPUT
–
(1)
PD0/RXD0/
PCINT27
RXEN
PORTD0 • PUD
RXEN
SCL_OUT
TWEN
0
INT0 ENABLE
PCINT24 • PCIE3
1
RXD
PCINT24 INPUT
–
89