Datasheet

102
ATmega640/1280/1281/2560/2561
2549K–AVR–01/07
Note: 1. PDO/PDI only available at PE1/PE0 for ATmega1281/2561.
Table 53. Overriding Signals for Alternate Functions in PE3:PE0
Signal
Name PE3/AIN1/OC3A PE2/AIN0/XCK0
PE1/PDO
(1)
/
TXD0
PE0/PDI
(1)
/
RXD0/PCINT8
PUOE 0 0 TXEN0RXEN0
PUOV 0 0 0 PORTE0 • PUD
DDOE 0 XCK0 OUTPUT
ENABLE
TXEN0RXEN0
DDOV 0 1 1 0
PVOE OC3B ENABLE XCK0 OUTPUT
ENABLE
TXEN00
PVOV OC3B XCK0 OUTPUT TXD0 0
DIEOE 0 0 0 PCINT8 • PCIE1
DIEOV 0 0 0 1
DI 0 XCK0 INPUT – RXD0
PE0 0 0 0 PCINT8 INPUT
AIO AIN1 INPUT AIN0 INPUT – –