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ATMEGA640 Datasheet(PDF) 106 Page - ATMEL Corporation

Part # ATMEGA640
Description  8-bit Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash
PDF  449 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATMEGA640 Datasheet(HTML) 106 Page - ATMEL Corporation

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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
––OC0B
0
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
PUOV
0
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
DIEOV
0
000
DI
–
–––
AIO
T/C2 OSC OUTPUT
–
–
–



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