Datasheet

106
ATmega640/1280/1281/2560/2561
2549K–AVR–01/07
Table 58. Overriding Signals for Alternate Functions in PG5:PG4
Signal Name — — PG5/OC0B PG4/TOSC1
PUOE – – – AS2
PUOV–––0
DDOE – – – AS2
DDOV–––0
PVOE – – OC0B Enable 0
PVOV––OC0B0
PTOE––––
DIEOE – – – AS2
DIEOV – – – EXCLK
DI––––
AIO–––T/C2 OSC INPUT
Table 59. Overriding Signals for Alternate Functions in PG3:PG0
Signal Name PG3/TOSC2 PG2/ALE/A7 PG1/RD PG0/WR
PUOE AS2 • EXCLK SRE SRE SRE
PUOV0 000
DDOE AS2 • EXCLK
SRE SRE SRE
DDOV 0 1 1 1
PVOE 0 SRE SRE SRE
PVOV 0 ALE RD WR
PTOE– –––
DIEOE AS2 • EXCLK
000
DIEOV0 000
DI– –––
AIO T/C2 OSC OUTPUT – – –