ATMEGA2561V ATMEL [ATMEL Corporation], ATMEGA2561V Datasheet - Page 108

• Manufacturer Part Number: ATMEGA2561V
• Description: 8-bit Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

108
ATmega640/1280/1281/2560/2561
• RXD2 – Port H, Bit 0
RXD2, USART2 Receive pin: Receive Data (Data input pin for the USART2). When the
USART2 Receiver is enabled, this pin is configured as an input regardless of the value
of DDH0. When the USART2 forces this pin to be an input, a logical on in PORTH0 will
turn on the internal pull-up.
Table 61. Overriding Signals for Alternate Functions in PH7:PH4
Table 62. Overriding Signals for Alternate Functions in PH3:PH0
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
PH7/T4
0
PH3/OC4A
0
0
0
0
0
–
0
0
T4 INPUT
–
0
0
0
0
OC4A ENABLE
OC4A
–
0
0
0
–
PH6/OC2B
0
0
0
0
OC2B ENABLE
OC2B
–
0
0
0
–
PH2/XCK2
0
0
XCK2 OUTPUT
ENABLE
1
XCK2 OUTPUT
ENABLE
XCK2
–
0
0
XC2K INPUT
–
PH5/OC4C
0
0
0
0
OC4C ENABLE
OC4C
–
0
0
0
–
PH1/TXD2
TXEN2
0
TXEN2
1
TXEN2
TXD2
–
0
0
0
–
PH4/OC4B
0
0
0
0
OC4B ENABLE
OC4B
–
0
0
0
–
PH0/RXD2
RXEN2
PORTH0 • PUD
RXEN2
0
0
0
–
0
0
RXD2
–
2549K–AVR–01/07