Datasheet

88
2549O–AVR–05/12
ATmega640/1280/1281/2560/2561
Note: 1. PDO/PDI only available at PE1/PE0 for ATmega1281/2561.
Table 13-16. Overriding Signals for Alternate Functions PE7:PE4
Signal
Name PE7/INT7/ICP3 PE6/INT6/T3 PE5/INT5/OC3C PE4/INT4/OC3B
PUOE 0 0 0 0
PUOV 0 0 0 0
DDOE 0 0 0 0
DDOV 0 0 0 0
PVOE 0 0 OC3C ENABLE OC3B ENABLE
PVOV 0 0 OC3C OC3B
DIEOE INT7 ENABLE INT6 ENABLE INT5 ENABLE INT4 ENABLE
DIEOV 1 1 1 1
DI
INT7 INPUT/ICP3
INPUT
INT7 INPUT/T3
INPUT
INT5 INPUT INT4 INPUT
AIO – – – –
Table 13-17. 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 – –